./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8 --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 c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 --- 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-e04fb08 [2022-11-16 11:54:47,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:54:47,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:54:47,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:54:47,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:54:47,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:54:47,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:54:47,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:54:47,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:54:47,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:54:47,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:54:47,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:54:47,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:54:47,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:54:47,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:54:47,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:54:47,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:54:47,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:54:47,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:54:47,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:54:47,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:54:47,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:54:47,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:54:47,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:54:47,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:54:47,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:54:47,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:54:47,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:54:47,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:54:47,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:54:47,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:54:47,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:54:47,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:54:47,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:54:47,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:54:47,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:54:47,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:54:47,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:54:47,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:54:47,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:54:47,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:54:47,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:54:47,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:54:47,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:54:47,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:54:47,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:54:47,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:54:47,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:54:47,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:54:47,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:54:47,921 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:54:47,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:54:47,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:54:47,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:54:47,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:54:47,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:54:47,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:54:47,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:54:47,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:54:47,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:54:47,925 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:54:47,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:54:47,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:54:47,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:54:47,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:54:47,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:54:47,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:54:47,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:54:47,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:47,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:54:47,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:54:47,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:54:47,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:54:47,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:54:47,930 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:54:47,931 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:54:47,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:54:47,932 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_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 [2022-11-16 11:54:48,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:54:48,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:54:48,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:54:48,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:54:48,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:54:48,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-16 11:54:48,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/data/32fae6cac/427449fcfc11454a945c21a148664d40/FLAG0863f8c0d [2022-11-16 11:54:48,993 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:54:48,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-16 11:54:49,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/data/32fae6cac/427449fcfc11454a945c21a148664d40/FLAG0863f8c0d [2022-11-16 11:54:49,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/data/32fae6cac/427449fcfc11454a945c21a148664d40 [2022-11-16 11:54:49,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:54:49,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:54:49,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:49,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:54:49,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:54:49,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2fa883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49, skipping insertion in model container [2022-11-16 11:54:49,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:54:49,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:54:49,815 WARN L229 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_e4dea526-e34e-4a0d-b08c-b54d78fc5744/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-16 11:54:49,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:49,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:54:49,911 WARN L229 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_e4dea526-e34e-4a0d-b08c-b54d78fc5744/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-16 11:54:49,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:49,935 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:54:49,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49 WrapperNode [2022-11-16 11:54:49,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:49,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:49,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:54:49,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:54:49,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,040 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 516 [2022-11-16 11:54:50,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:50,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:54:50,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:54:50,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:54:50,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:54:50,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:54:50,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:54:50,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:54:50,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:50,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:50,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:50,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:54:50,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4dea526-e34e-4a0d-b08c-b54d78fc5744/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:54:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:54:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:54:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:54:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:54:50,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:54:50,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:54:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:54:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:54:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:54:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:54:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:54:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:54:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:54:50,221 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:54:50,478 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:54:50,480 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:54:51,606 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:54:51,624 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:54:51,625 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 11:54:51,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:51 BoogieIcfgContainer [2022-11-16 11:54:51,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:54:51,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:54:51,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:54:51,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:54:51,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:54:49" (1/3) ... [2022-11-16 11:54:51,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9fad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:51, skipping insertion in model container [2022-11-16 11:54:51,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (2/3) ... [2022-11-16 11:54:51,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9fad44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:51, skipping insertion in model container [2022-11-16 11:54:51,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:51" (3/3) ... [2022-11-16 11:54:51,640 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2022-11-16 11:54:51,650 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:54:51,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:54:51,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-16 11:54:51,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:54:51,912 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:54:52,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 688 places, 714 transitions, 1444 flow [2022-11-16 11:54:52,544 INFO L130 PetriNetUnfolder]: 33/712 cut-off events. [2022-11-16 11:54:52,544 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:54:52,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 712 events. 33/712 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1885 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 461. Up to 2 conditions per place. [2022-11-16 11:54:52,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 688 places, 714 transitions, 1444 flow [2022-11-16 11:54:52,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 694 transitions, 1400 flow [2022-11-16 11:54:52,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:54:52,627 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;@e81e1a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:54:52,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2022-11-16 11:54:52,633 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-16 11:54:52,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:54:52,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:52,635 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] [2022-11-16 11:54:52,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash 171356879, now seen corresponding path program 1 times [2022-11-16 11:54:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:52,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986265580] [2022-11-16 11:54:52,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:52,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:52,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:52,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986265580] [2022-11-16 11:54:52,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986265580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:52,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:52,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:52,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851813561] [2022-11-16 11:54:52,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:52,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:53,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:53,055 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 714 [2022-11-16 11:54:53,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 694 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:53,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 714 [2022-11-16 11:54:53,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:53,702 INFO L130 PetriNetUnfolder]: 32/1111 cut-off events. [2022-11-16 11:54:53,703 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-16 11:54:53,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 1111 events. 32/1111 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5133 event pairs, 18 based on Foata normal form. 134/1077 useless extension candidates. Maximal degree in co-relation 972. Up to 80 conditions per place. [2022-11-16 11:54:53,730 INFO L137 encePairwiseOnDemand]: 689/714 looper letters, 43 selfloop transitions, 2 changer transitions 3/671 dead transitions. [2022-11-16 11:54:53,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 671 transitions, 1444 flow [2022-11-16 11:54:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2000 transitions. [2022-11-16 11:54:53,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9337068160597572 [2022-11-16 11:54:53,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2000 transitions. [2022-11-16 11:54:53,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2000 transitions. [2022-11-16 11:54:53,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:53,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2000 transitions. [2022-11-16 11:54:53,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,791 INFO L175 Difference]: Start difference. First operand has 669 places, 694 transitions, 1400 flow. Second operand 3 states and 2000 transitions. [2022-11-16 11:54:53,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 671 transitions, 1444 flow [2022-11-16 11:54:53,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 671 transitions, 1436 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:54:53,815 INFO L231 Difference]: Finished difference. Result has 666 places, 668 transitions, 1344 flow [2022-11-16 11:54:53,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1346, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1344, PETRI_PLACES=666, PETRI_TRANSITIONS=668} [2022-11-16 11:54:53,823 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-11-16 11:54:53,824 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 668 transitions, 1344 flow [2022-11-16 11:54:53,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:53,826 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] [2022-11-16 11:54:53,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:54:53,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:53,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1085612204, now seen corresponding path program 1 times [2022-11-16 11:54:53,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:53,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86748382] [2022-11-16 11:54:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:53,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:53,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86748382] [2022-11-16 11:54:53,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86748382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:53,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:53,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977526845] [2022-11-16 11:54:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:53,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:53,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:53,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:53,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-16 11:54:53,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 668 transitions, 1344 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:53,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:53,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-16 11:54:53,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:54,340 INFO L130 PetriNetUnfolder]: 30/886 cut-off events. [2022-11-16 11:54:54,340 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-16 11:54:54,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 886 events. 30/886 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3810 event pairs, 18 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 922. Up to 65 conditions per place. [2022-11-16 11:54:54,364 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/667 dead transitions. [2022-11-16 11:54:54,365 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 667 transitions, 1402 flow [2022-11-16 11:54:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-16 11:54:54,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-16 11:54:54,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-16 11:54:54,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-16 11:54:54,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:54,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-16 11:54:54,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:54,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:54,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:54,387 INFO L175 Difference]: Start difference. First operand has 666 places, 668 transitions, 1344 flow. Second operand 3 states and 2008 transitions. [2022-11-16 11:54:54,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 667 transitions, 1402 flow [2022-11-16 11:54:54,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 667 transitions, 1398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:54,403 INFO L231 Difference]: Finished difference. Result has 662 places, 667 transitions, 1342 flow [2022-11-16 11:54:54,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1342, PETRI_PLACES=662, PETRI_TRANSITIONS=667} [2022-11-16 11:54:54,405 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -7 predicate places. [2022-11-16 11:54:54,406 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 667 transitions, 1342 flow [2022-11-16 11:54:54,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:54,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:54,409 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] [2022-11-16 11:54:54,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:54:54,409 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash 599700731, now seen corresponding path program 1 times [2022-11-16 11:54:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:54,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720212849] [2022-11-16 11:54:54,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:54,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:54,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:54,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720212849] [2022-11-16 11:54:54,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720212849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:54,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:54,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:54,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729096286] [2022-11-16 11:54:54,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:54,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:54,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:54,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:54,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:54,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-16 11:54:54,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 667 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:54,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:54,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-16 11:54:54,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:54,972 INFO L130 PetriNetUnfolder]: 17/1015 cut-off events. [2022-11-16 11:54:54,972 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-11-16 11:54:54,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 1015 events. 17/1015 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3893 event pairs, 3 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 999. Up to 17 conditions per place. [2022-11-16 11:54:54,995 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/666 dead transitions. [2022-11-16 11:54:54,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 666 transitions, 1364 flow [2022-11-16 11:54:54,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-16 11:54:55,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-16 11:54:55,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:55,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,020 INFO L175 Difference]: Start difference. First operand has 662 places, 667 transitions, 1342 flow. Second operand 3 states and 2044 transitions. [2022-11-16 11:54:55,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 666 transitions, 1364 flow [2022-11-16 11:54:55,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 666 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:55,041 INFO L231 Difference]: Finished difference. Result has 661 places, 666 transitions, 1340 flow [2022-11-16 11:54:55,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1340, PETRI_PLACES=661, PETRI_TRANSITIONS=666} [2022-11-16 11:54:55,045 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -8 predicate places. [2022-11-16 11:54:55,045 INFO L495 AbstractCegarLoop]: Abstraction has has 661 places, 666 transitions, 1340 flow [2022-11-16 11:54:55,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,047 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:55,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:55,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:54:55,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1528557180, now seen corresponding path program 1 times [2022-11-16 11:54:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:55,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134019921] [2022-11-16 11:54:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:55,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:55,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:55,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134019921] [2022-11-16 11:54:55,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134019921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:55,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:55,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:55,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787615847] [2022-11-16 11:54:55,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:55,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:55,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:55,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:55,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-16 11:54:55,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 666 transitions, 1340 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:55,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-16 11:54:55,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:55,392 INFO L130 PetriNetUnfolder]: 15/801 cut-off events. [2022-11-16 11:54:55,392 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 11:54:55,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 801 events. 15/801 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2488 event pairs, 3 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 775. Up to 17 conditions per place. [2022-11-16 11:54:55,417 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2022-11-16 11:54:55,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 665 transitions, 1362 flow [2022-11-16 11:54:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-16 11:54:55,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-16 11:54:55,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:55,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-16 11:54:55,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,445 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,446 INFO L175 Difference]: Start difference. First operand has 661 places, 666 transitions, 1340 flow. Second operand 3 states and 2044 transitions. [2022-11-16 11:54:55,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 665 transitions, 1362 flow [2022-11-16 11:54:55,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 665 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:55,462 INFO L231 Difference]: Finished difference. Result has 660 places, 665 transitions, 1338 flow [2022-11-16 11:54:55,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=660, PETRI_TRANSITIONS=665} [2022-11-16 11:54:55,466 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -9 predicate places. [2022-11-16 11:54:55,473 INFO L495 AbstractCegarLoop]: Abstraction has has 660 places, 665 transitions, 1338 flow [2022-11-16 11:54:55,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:55,475 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:55,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:54:55,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2135018873, now seen corresponding path program 1 times [2022-11-16 11:54:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:55,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116919218] [2022-11-16 11:54:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:55,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:55,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:55,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116919218] [2022-11-16 11:54:55,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116919218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:55,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:55,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:55,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171764000] [2022-11-16 11:54:55,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:55,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:55,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:55,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:55,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:55,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:54:55,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 665 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:55,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:55,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:54:55,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:56,005 INFO L130 PetriNetUnfolder]: 25/1004 cut-off events. [2022-11-16 11:54:56,006 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:54:56,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1004 events. 25/1004 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3770 event pairs, 12 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1016. Up to 50 conditions per place. [2022-11-16 11:54:56,024 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/664 dead transitions. [2022-11-16 11:54:56,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 664 transitions, 1390 flow [2022-11-16 11:54:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-16 11:54:56,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-16 11:54:56,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-16 11:54:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-16 11:54:56,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:56,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-16 11:54:56,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,047 INFO L175 Difference]: Start difference. First operand has 660 places, 665 transitions, 1338 flow. Second operand 3 states and 2014 transitions. [2022-11-16 11:54:56,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 664 transitions, 1390 flow [2022-11-16 11:54:56,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 664 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:56,061 INFO L231 Difference]: Finished difference. Result has 659 places, 664 transitions, 1336 flow [2022-11-16 11:54:56,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1336, PETRI_PLACES=659, PETRI_TRANSITIONS=664} [2022-11-16 11:54:56,067 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -10 predicate places. [2022-11-16 11:54:56,067 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 664 transitions, 1336 flow [2022-11-16 11:54:56,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:56,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:56,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:54:56,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash -329285521, now seen corresponding path program 1 times [2022-11-16 11:54:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:56,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298862313] [2022-11-16 11:54:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:56,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:56,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298862313] [2022-11-16 11:54:56,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298862313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:56,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:56,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510260464] [2022-11-16 11:54:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:56,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:56,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:56,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:54:56,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 664 transitions, 1336 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:56,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:54:56,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:56,486 INFO L130 PetriNetUnfolder]: 23/790 cut-off events. [2022-11-16 11:54:56,487 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-16 11:54:56,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 790 events. 23/790 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2891 event pairs, 12 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 782. Up to 49 conditions per place. [2022-11-16 11:54:56,506 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 24 selfloop transitions, 2 changer transitions 0/663 dead transitions. [2022-11-16 11:54:56,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 663 transitions, 1386 flow [2022-11-16 11:54:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2022-11-16 11:54:56,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9397759103641457 [2022-11-16 11:54:56,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2013 transitions. [2022-11-16 11:54:56,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2013 transitions. [2022-11-16 11:54:56,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:56,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2013 transitions. [2022-11-16 11:54:56,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,548 INFO L175 Difference]: Start difference. First operand has 659 places, 664 transitions, 1336 flow. Second operand 3 states and 2013 transitions. [2022-11-16 11:54:56,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 663 transitions, 1386 flow [2022-11-16 11:54:56,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 663 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:56,564 INFO L231 Difference]: Finished difference. Result has 658 places, 663 transitions, 1334 flow [2022-11-16 11:54:56,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=658, PETRI_TRANSITIONS=663} [2022-11-16 11:54:56,569 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -11 predicate places. [2022-11-16 11:54:56,569 INFO L495 AbstractCegarLoop]: Abstraction has has 658 places, 663 transitions, 1334 flow [2022-11-16 11:54:56,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:56,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:56,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:54:56,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:56,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1869105417, now seen corresponding path program 1 times [2022-11-16 11:54:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726139871] [2022-11-16 11:54:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:56,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726139871] [2022-11-16 11:54:56,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726139871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:56,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:56,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:56,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059160413] [2022-11-16 11:54:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:56,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:56,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:56,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:56,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-16 11:54:56,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 663 transitions, 1334 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:56,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:56,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-16 11:54:56,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:56,993 INFO L130 PetriNetUnfolder]: 30/892 cut-off events. [2022-11-16 11:54:56,994 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:54:57,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 892 events. 30/892 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3529 event pairs, 18 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 911. Up to 65 conditions per place. [2022-11-16 11:54:57,014 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/662 dead transitions. [2022-11-16 11:54:57,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 662 transitions, 1392 flow [2022-11-16 11:54:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:57,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-16 11:54:57,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-16 11:54:57,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:57,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,035 INFO L175 Difference]: Start difference. First operand has 658 places, 663 transitions, 1334 flow. Second operand 3 states and 2008 transitions. [2022-11-16 11:54:57,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 662 transitions, 1392 flow [2022-11-16 11:54:57,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 662 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:57,049 INFO L231 Difference]: Finished difference. Result has 657 places, 662 transitions, 1332 flow [2022-11-16 11:54:57,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=657, PETRI_TRANSITIONS=662} [2022-11-16 11:54:57,051 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -12 predicate places. [2022-11-16 11:54:57,052 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 662 transitions, 1332 flow [2022-11-16 11:54:57,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:57,053 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:57,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:54:57,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:57,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1091937378, now seen corresponding path program 1 times [2022-11-16 11:54:57,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:57,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614188551] [2022-11-16 11:54:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:57,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:57,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:57,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:57,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614188551] [2022-11-16 11:54:57,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614188551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:57,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:57,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375911645] [2022-11-16 11:54:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:57,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:57,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:57,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:57,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:57,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-16 11:54:57,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:57,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-16 11:54:57,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:57,467 INFO L130 PetriNetUnfolder]: 30/891 cut-off events. [2022-11-16 11:54:57,467 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-16 11:54:57,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 891 events. 30/891 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3906 event pairs, 18 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 885. Up to 65 conditions per place. [2022-11-16 11:54:57,484 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/661 dead transitions. [2022-11-16 11:54:57,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 661 transitions, 1390 flow [2022-11-16 11:54:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-16 11:54:57,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-16 11:54:57,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:57,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-16 11:54:57,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,509 INFO L175 Difference]: Start difference. First operand has 657 places, 662 transitions, 1332 flow. Second operand 3 states and 2008 transitions. [2022-11-16 11:54:57,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 661 transitions, 1390 flow [2022-11-16 11:54:57,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 661 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:57,527 INFO L231 Difference]: Finished difference. Result has 656 places, 661 transitions, 1330 flow [2022-11-16 11:54:57,528 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1330, PETRI_PLACES=656, PETRI_TRANSITIONS=661} [2022-11-16 11:54:57,529 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -13 predicate places. [2022-11-16 11:54:57,529 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 661 transitions, 1330 flow [2022-11-16 11:54:57,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:57,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:57,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:54:57,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1753290550, now seen corresponding path program 1 times [2022-11-16 11:54:57,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:57,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380726187] [2022-11-16 11:54:57,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:57,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:57,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:57,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380726187] [2022-11-16 11:54:57,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380726187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:57,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:57,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887654967] [2022-11-16 11:54:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:57,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:57,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:57,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:57,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 671 out of 714 [2022-11-16 11:54:57,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 661 transitions, 1330 flow. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:57,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:57,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 671 of 714 [2022-11-16 11:54:57,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:58,153 INFO L130 PetriNetUnfolder]: 37/1934 cut-off events. [2022-11-16 11:54:58,153 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:54:58,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1934 events. 37/1934 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11957 event pairs, 15 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1906. Up to 47 conditions per place. [2022-11-16 11:54:58,176 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 16 selfloop transitions, 2 changer transitions 0/660 dead transitions. [2022-11-16 11:54:58,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 660 transitions, 1364 flow [2022-11-16 11:54:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2032 transitions. [2022-11-16 11:54:58,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9486461251167133 [2022-11-16 11:54:58,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2032 transitions. [2022-11-16 11:54:58,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2032 transitions. [2022-11-16 11:54:58,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:58,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2032 transitions. [2022-11-16 11:54:58,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,195 INFO L175 Difference]: Start difference. First operand has 656 places, 661 transitions, 1330 flow. Second operand 3 states and 2032 transitions. [2022-11-16 11:54:58,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 660 transitions, 1364 flow [2022-11-16 11:54:58,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 660 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:58,208 INFO L231 Difference]: Finished difference. Result has 655 places, 660 transitions, 1328 flow [2022-11-16 11:54:58,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1324, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=655, PETRI_TRANSITIONS=660} [2022-11-16 11:54:58,210 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -14 predicate places. [2022-11-16 11:54:58,211 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 660 transitions, 1328 flow [2022-11-16 11:54:58,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:58,212 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:58,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:54:58,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1991054900, now seen corresponding path program 1 times [2022-11-16 11:54:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:58,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532675452] [2022-11-16 11:54:58,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:58,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:58,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532675452] [2022-11-16 11:54:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532675452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:58,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:58,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:58,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092738719] [2022-11-16 11:54:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:58,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:58,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:58,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:58,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:58,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 714 [2022-11-16 11:54:58,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 660 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:58,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 714 [2022-11-16 11:54:58,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:58,722 INFO L130 PetriNetUnfolder]: 28/1711 cut-off events. [2022-11-16 11:54:58,723 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:54:58,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1711 events. 28/1711 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 9769 event pairs, 8 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 1654. Up to 26 conditions per place. [2022-11-16 11:54:58,750 INFO L137 encePairwiseOnDemand]: 710/714 looper letters, 11 selfloop transitions, 1 changer transitions 0/657 dead transitions. [2022-11-16 11:54:58,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 657 transitions, 1346 flow [2022-11-16 11:54:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2037 transitions. [2022-11-16 11:54:58,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9509803921568627 [2022-11-16 11:54:58,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2037 transitions. [2022-11-16 11:54:58,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2037 transitions. [2022-11-16 11:54:58,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:58,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2037 transitions. [2022-11-16 11:54:58,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,770 INFO L175 Difference]: Start difference. First operand has 655 places, 660 transitions, 1328 flow. Second operand 3 states and 2037 transitions. [2022-11-16 11:54:58,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 657 transitions, 1346 flow [2022-11-16 11:54:58,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 657 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:54:58,784 INFO L231 Difference]: Finished difference. Result has 652 places, 657 transitions, 1320 flow [2022-11-16 11:54:58,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1320, PETRI_PLACES=652, PETRI_TRANSITIONS=657} [2022-11-16 11:54:58,787 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-16 11:54:58,787 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 657 transitions, 1320 flow [2022-11-16 11:54:58,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:58,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:58,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:54:58,789 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:58,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash -54881781, now seen corresponding path program 1 times [2022-11-16 11:54:58,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:58,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910238180] [2022-11-16 11:54:58,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:54:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:54:58,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:54:58,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910238180] [2022-11-16 11:54:58,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910238180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:54:58,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:54:58,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:54:58,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534791197] [2022-11-16 11:54:58,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:54:58,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:54:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:54:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:54:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:54:58,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:54:58,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 657 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:58,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:54:58,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:54:58,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:54:59,626 INFO L130 PetriNetUnfolder]: 141/2668 cut-off events. [2022-11-16 11:54:59,627 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-16 11:54:59,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2668 events. 141/2668 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18778 event pairs, 99 based on Foata normal form. 0/2235 useless extension candidates. Maximal degree in co-relation 2815. Up to 224 conditions per place. [2022-11-16 11:54:59,656 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/656 dead transitions. [2022-11-16 11:54:59,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 656 transitions, 1372 flow [2022-11-16 11:54:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:54:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:54:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-16 11:54:59,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-16 11:54:59,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-16 11:54:59,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-16 11:54:59,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:54:59,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-16 11:54:59,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:59,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:59,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:59,676 INFO L175 Difference]: Start difference. First operand has 652 places, 657 transitions, 1320 flow. Second operand 3 states and 2014 transitions. [2022-11-16 11:54:59,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 656 transitions, 1372 flow [2022-11-16 11:54:59,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 656 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:54:59,689 INFO L231 Difference]: Finished difference. Result has 652 places, 656 transitions, 1321 flow [2022-11-16 11:54:59,690 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=652, PETRI_TRANSITIONS=656} [2022-11-16 11:54:59,691 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-16 11:54:59,691 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 656 transitions, 1321 flow [2022-11-16 11:54:59,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:54:59,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:54:59,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:59,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:54:59,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:54:59,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1243720631, now seen corresponding path program 1 times [2022-11-16 11:54:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:59,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104002112] [2022-11-16 11:54:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:59,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:00,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:00,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104002112] [2022-11-16 11:55:00,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104002112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:00,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:00,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:55:00,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191326643] [2022-11-16 11:55:00,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:00,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:55:00,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:00,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:55:00,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:55:00,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 714 [2022-11-16 11:55:00,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 656 transitions, 1321 flow. Second operand has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:00,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:00,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 714 [2022-11-16 11:55:00,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:06,657 INFO L130 PetriNetUnfolder]: 4986/24312 cut-off events. [2022-11-16 11:55:06,657 INFO L131 PetriNetUnfolder]: For 19/112 co-relation queries the response was YES. [2022-11-16 11:55:06,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31606 conditions, 24312 events. 4986/24312 cut-off events. For 19/112 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 282684 event pairs, 4572 based on Foata normal form. 0/20399 useless extension candidates. Maximal degree in co-relation 31514. Up to 7264 conditions per place. [2022-11-16 11:55:06,888 INFO L137 encePairwiseOnDemand]: 708/714 looper letters, 63 selfloop transitions, 5 changer transitions 0/655 dead transitions. [2022-11-16 11:55:06,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 655 transitions, 1455 flow [2022-11-16 11:55:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:55:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:55:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3795 transitions. [2022-11-16 11:55:06,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8858543417366946 [2022-11-16 11:55:06,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3795 transitions. [2022-11-16 11:55:06,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3795 transitions. [2022-11-16 11:55:06,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:06,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3795 transitions. [2022-11-16 11:55:06,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 632.5) internal successors, (3795), 6 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:06,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:06,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:06,921 INFO L175 Difference]: Start difference. First operand has 652 places, 656 transitions, 1321 flow. Second operand 6 states and 3795 transitions. [2022-11-16 11:55:06,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 655 transitions, 1455 flow [2022-11-16 11:55:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 655 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:55:06,936 INFO L231 Difference]: Finished difference. Result has 654 places, 655 transitions, 1325 flow [2022-11-16 11:55:06,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1325, PETRI_PLACES=654, PETRI_TRANSITIONS=655} [2022-11-16 11:55:06,938 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -15 predicate places. [2022-11-16 11:55:06,939 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 655 transitions, 1325 flow [2022-11-16 11:55:06,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:06,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:06,942 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:06,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:55:06,943 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:06,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:06,944 INFO L85 PathProgramCache]: Analyzing trace with hash 478978750, now seen corresponding path program 1 times [2022-11-16 11:55:06,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:06,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597201296] [2022-11-16 11:55:06,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:07,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:07,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597201296] [2022-11-16 11:55:07,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597201296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:07,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:07,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438959856] [2022-11-16 11:55:07,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:07,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:07,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:07,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:07,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 714 [2022-11-16 11:55:07,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 655 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:07,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 714 [2022-11-16 11:55:07,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:07,502 INFO L130 PetriNetUnfolder]: 30/1100 cut-off events. [2022-11-16 11:55:07,503 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:55:07,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1100 events. 30/1100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5110 event pairs, 8 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1171. Up to 44 conditions per place. [2022-11-16 11:55:07,522 INFO L137 encePairwiseOnDemand]: 699/714 looper letters, 30 selfloop transitions, 5 changer transitions 0/648 dead transitions. [2022-11-16 11:55:07,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 648 transitions, 1382 flow [2022-11-16 11:55:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2022-11-16 11:55:07,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927170868347339 [2022-11-16 11:55:07,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2022-11-16 11:55:07,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2022-11-16 11:55:07,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:07,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2022-11-16 11:55:07,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,541 INFO L175 Difference]: Start difference. First operand has 654 places, 655 transitions, 1325 flow. Second operand 3 states and 1986 transitions. [2022-11-16 11:55:07,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 648 transitions, 1382 flow [2022-11-16 11:55:07,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 648 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:55:07,560 INFO L231 Difference]: Finished difference. Result has 642 places, 647 transitions, 1318 flow [2022-11-16 11:55:07,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=642, PETRI_TRANSITIONS=647} [2022-11-16 11:55:07,563 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -27 predicate places. [2022-11-16 11:55:07,563 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 647 transitions, 1318 flow [2022-11-16 11:55:07,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:07,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:07,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:55:07,565 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:07,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 737121131, now seen corresponding path program 1 times [2022-11-16 11:55:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:07,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399842398] [2022-11-16 11:55:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:07,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:07,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399842398] [2022-11-16 11:55:07,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399842398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:07,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:07,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:07,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378956154] [2022-11-16 11:55:07,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:07,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:07,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:07,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:07,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:07,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:55:07,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 647 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:07,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:55:07,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:07,891 INFO L130 PetriNetUnfolder]: 29/887 cut-off events. [2022-11-16 11:55:07,891 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-16 11:55:07,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 887 events. 29/887 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3657 event pairs, 8 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 863. Up to 34 conditions per place. [2022-11-16 11:55:07,911 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 20 selfloop transitions, 5 changer transitions 0/645 dead transitions. [2022-11-16 11:55:07,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 645 transitions, 1365 flow [2022-11-16 11:55:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:07,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-16 11:55:07,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-16 11:55:07,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-16 11:55:07,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-16 11:55:07,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:07,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-16 11:55:07,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,931 INFO L175 Difference]: Start difference. First operand has 642 places, 647 transitions, 1318 flow. Second operand 3 states and 2016 transitions. [2022-11-16 11:55:07,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 645 transitions, 1365 flow [2022-11-16 11:55:07,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 645 transitions, 1360 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:07,946 INFO L231 Difference]: Finished difference. Result has 639 places, 644 transitions, 1326 flow [2022-11-16 11:55:07,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1326, PETRI_PLACES=639, PETRI_TRANSITIONS=644} [2022-11-16 11:55:07,948 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -30 predicate places. [2022-11-16 11:55:07,949 INFO L495 AbstractCegarLoop]: Abstraction has has 639 places, 644 transitions, 1326 flow [2022-11-16 11:55:07,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:07,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:07,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:07,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:55:07,951 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:07,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2142126907, now seen corresponding path program 1 times [2022-11-16 11:55:07,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:07,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27416317] [2022-11-16 11:55:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:07,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:08,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:08,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27416317] [2022-11-16 11:55:08,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27416317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:08,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:08,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:08,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865560524] [2022-11-16 11:55:08,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:08,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:08,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:08,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:08,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:08,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-16 11:55:08,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 644 transitions, 1326 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:08,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-16 11:55:08,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:08,582 INFO L130 PetriNetUnfolder]: 44/1518 cut-off events. [2022-11-16 11:55:08,583 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:55:08,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1518 events. 44/1518 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 6711 event pairs, 6 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1541. Up to 32 conditions per place. [2022-11-16 11:55:08,621 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 18 selfloop transitions, 6 changer transitions 0/644 dead transitions. [2022-11-16 11:55:08,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 644 transitions, 1376 flow [2022-11-16 11:55:08,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-16 11:55:08,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-16 11:55:08,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-16 11:55:08,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-16 11:55:08,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:08,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-16 11:55:08,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,645 INFO L175 Difference]: Start difference. First operand has 639 places, 644 transitions, 1326 flow. Second operand 3 states and 2023 transitions. [2022-11-16 11:55:08,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 644 transitions, 1376 flow [2022-11-16 11:55:08,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 644 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:08,661 INFO L231 Difference]: Finished difference. Result has 637 places, 642 transitions, 1339 flow [2022-11-16 11:55:08,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=637, PETRI_TRANSITIONS=642} [2022-11-16 11:55:08,663 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -32 predicate places. [2022-11-16 11:55:08,663 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 642 transitions, 1339 flow [2022-11-16 11:55:08,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:08,665 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:08,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:55:08,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:08,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1864509109, now seen corresponding path program 1 times [2022-11-16 11:55:08,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:08,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163243876] [2022-11-16 11:55:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:08,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:08,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:08,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163243876] [2022-11-16 11:55:08,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163243876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:08,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:08,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:08,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065728095] [2022-11-16 11:55:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:08,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:08,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:08,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:08,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:08,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-16 11:55:08,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 642 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:08,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:08,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-16 11:55:08,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:09,495 INFO L130 PetriNetUnfolder]: 60/1994 cut-off events. [2022-11-16 11:55:09,495 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-16 11:55:09,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 1994 events. 60/1994 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11898 event pairs, 6 based on Foata normal form. 1/1742 useless extension candidates. Maximal degree in co-relation 2058. Up to 45 conditions per place. [2022-11-16 11:55:09,528 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 17 selfloop transitions, 5 changer transitions 5/643 dead transitions. [2022-11-16 11:55:09,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 643 transitions, 1392 flow [2022-11-16 11:55:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-16 11:55:09,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-16 11:55:09,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-16 11:55:09,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-16 11:55:09,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:09,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-16 11:55:09,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:09,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:09,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:09,570 INFO L175 Difference]: Start difference. First operand has 637 places, 642 transitions, 1339 flow. Second operand 3 states and 2023 transitions. [2022-11-16 11:55:09,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 643 transitions, 1392 flow [2022-11-16 11:55:09,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 643 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:09,588 INFO L231 Difference]: Finished difference. Result has 635 places, 635 transitions, 1335 flow [2022-11-16 11:55:09,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1335, PETRI_PLACES=635, PETRI_TRANSITIONS=635} [2022-11-16 11:55:09,590 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-16 11:55:09,591 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 635 transitions, 1335 flow [2022-11-16 11:55:09,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:09,592 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:09,592 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:09,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:55:09,593 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:09,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:09,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1456971799, now seen corresponding path program 1 times [2022-11-16 11:55:09,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:09,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162187455] [2022-11-16 11:55:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:09,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162187455] [2022-11-16 11:55:09,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162187455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:09,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:09,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087829005] [2022-11-16 11:55:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:09,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:09,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:09,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:55:09,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 635 transitions, 1335 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:09,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:09,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:55:09,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:10,899 INFO L130 PetriNetUnfolder]: 151/4028 cut-off events. [2022-11-16 11:55:10,900 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:55:10,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 4028 events. 151/4028 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 34177 event pairs, 40 based on Foata normal form. 0/3542 useless extension candidates. Maximal degree in co-relation 4409. Up to 158 conditions per place. [2022-11-16 11:55:10,955 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 20 selfloop transitions, 3 changer transitions 0/632 dead transitions. [2022-11-16 11:55:10,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 632 transitions, 1377 flow [2022-11-16 11:55:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2015 transitions. [2022-11-16 11:55:10,962 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9407096171802054 [2022-11-16 11:55:10,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2015 transitions. [2022-11-16 11:55:10,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2015 transitions. [2022-11-16 11:55:10,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:10,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2015 transitions. [2022-11-16 11:55:10,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.6666666666666) internal successors, (2015), 3 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:10,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:10,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:10,979 INFO L175 Difference]: Start difference. First operand has 635 places, 635 transitions, 1335 flow. Second operand 3 states and 2015 transitions. [2022-11-16 11:55:10,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 632 transitions, 1377 flow [2022-11-16 11:55:10,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 632 transitions, 1372 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:10,998 INFO L231 Difference]: Finished difference. Result has 626 places, 630 transitions, 1331 flow [2022-11-16 11:55:11,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1331, PETRI_PLACES=626, PETRI_TRANSITIONS=630} [2022-11-16 11:55:11,000 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-11-16 11:55:11,001 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 630 transitions, 1331 flow [2022-11-16 11:55:11,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:11,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:11,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:11,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:55:11,003 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 674855596, now seen corresponding path program 1 times [2022-11-16 11:55:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:11,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171572752] [2022-11-16 11:55:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:11,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:11,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:11,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171572752] [2022-11-16 11:55:11,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171572752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:11,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:11,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:11,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228132231] [2022-11-16 11:55:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:11,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:11,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:11,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:11,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:11,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-16 11:55:11,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 630 transitions, 1331 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:11,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:11,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-16 11:55:11,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:12,445 INFO L130 PetriNetUnfolder]: 126/3877 cut-off events. [2022-11-16 11:55:12,446 INFO L131 PetriNetUnfolder]: For 40/44 co-relation queries the response was YES. [2022-11-16 11:55:12,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4363 conditions, 3877 events. 126/3877 cut-off events. For 40/44 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 32952 event pairs, 6 based on Foata normal form. 0/3486 useless extension candidates. Maximal degree in co-relation 4265. Up to 176 conditions per place. [2022-11-16 11:55:12,525 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 21 selfloop transitions, 3 changer transitions 0/628 dead transitions. [2022-11-16 11:55:12,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1378 flow [2022-11-16 11:55:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:12,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-16 11:55:12,532 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-16 11:55:12,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-16 11:55:12,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-16 11:55:12,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:12,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-16 11:55:12,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:12,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:12,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:12,549 INFO L175 Difference]: Start difference. First operand has 626 places, 630 transitions, 1331 flow. Second operand 3 states and 2016 transitions. [2022-11-16 11:55:12,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1378 flow [2022-11-16 11:55:12,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 628 transitions, 1375 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:12,570 INFO L231 Difference]: Finished difference. Result has 622 places, 625 transitions, 1329 flow [2022-11-16 11:55:12,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1329, PETRI_PLACES=622, PETRI_TRANSITIONS=625} [2022-11-16 11:55:12,572 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-16 11:55:12,572 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 625 transitions, 1329 flow [2022-11-16 11:55:12,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:12,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:12,574 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:12,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:55:12,575 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:12,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1120973834, now seen corresponding path program 1 times [2022-11-16 11:55:12,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:12,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818377948] [2022-11-16 11:55:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:12,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:12,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:12,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818377948] [2022-11-16 11:55:12,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818377948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:12,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:12,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:55:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003481769] [2022-11-16 11:55:12,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:12,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:12,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-16 11:55:12,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 625 transitions, 1329 flow. Second operand has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:12,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:12,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-16 11:55:12,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:15,579 INFO L130 PetriNetUnfolder]: 354/9746 cut-off events. [2022-11-16 11:55:15,579 INFO L131 PetriNetUnfolder]: For 59/63 co-relation queries the response was YES. [2022-11-16 11:55:15,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10938 conditions, 9746 events. 354/9746 cut-off events. For 59/63 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 100177 event pairs, 80 based on Foata normal form. 0/8810 useless extension candidates. Maximal degree in co-relation 10841. Up to 467 conditions per place. [2022-11-16 11:55:15,695 INFO L137 encePairwiseOnDemand]: 706/714 looper letters, 19 selfloop transitions, 2 changer transitions 0/623 dead transitions. [2022-11-16 11:55:15,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 623 transitions, 1369 flow [2022-11-16 11:55:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:55:15,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2022 transitions. [2022-11-16 11:55:15,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439775910364145 [2022-11-16 11:55:15,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2022 transitions. [2022-11-16 11:55:15,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2022 transitions. [2022-11-16 11:55:15,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:15,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2022 transitions. [2022-11-16 11:55:15,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:15,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:15,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:15,718 INFO L175 Difference]: Start difference. First operand has 622 places, 625 transitions, 1329 flow. Second operand 3 states and 2022 transitions. [2022-11-16 11:55:15,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 623 transitions, 1369 flow [2022-11-16 11:55:15,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 623 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:55:15,738 INFO L231 Difference]: Finished difference. Result has 618 places, 621 transitions, 1328 flow [2022-11-16 11:55:15,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=618, PETRI_TRANSITIONS=621} [2022-11-16 11:55:15,740 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-11-16 11:55:15,740 INFO L495 AbstractCegarLoop]: Abstraction has has 618 places, 621 transitions, 1328 flow [2022-11-16 11:55:15,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:15,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:15,742 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:15,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:55:15,742 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:15,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1149824123, now seen corresponding path program 1 times [2022-11-16 11:55:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:15,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914561395] [2022-11-16 11:55:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:15,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:16,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:16,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914561395] [2022-11-16 11:55:16,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914561395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:16,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:16,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:55:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310228712] [2022-11-16 11:55:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:16,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:55:16,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:55:16,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:55:16,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 714 [2022-11-16 11:55:16,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 621 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:16,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:16,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 714 [2022-11-16 11:55:16,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:55:32,596 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, 777#true, Black: 742#true, Black: 747#true, 757#true, 621#L98-4true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:32,596 INFO L383 tUnfolder$Statistics]: this new event has 366 ancestors and is cut-off event [2022-11-16 11:55:32,597 INFO L386 tUnfolder$Statistics]: existing Event has 265 ancestors and is cut-off event [2022-11-16 11:55:32,597 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-16 11:55:32,597 INFO L386 tUnfolder$Statistics]: existing Event has 359 ancestors and is cut-off event [2022-11-16 11:55:32,703 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, 777#true, Black: 742#true, Black: 747#true, 757#true, 74#L99-1true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:32,704 INFO L383 tUnfolder$Statistics]: this new event has 369 ancestors and is cut-off event [2022-11-16 11:55:32,704 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-16 11:55:32,704 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-16 11:55:32,704 INFO L386 tUnfolder$Statistics]: existing Event has 362 ancestors and is cut-off event [2022-11-16 11:55:32,764 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, 628#L47-3true, Black: 742#true, Black: 747#true, 621#L98-4true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-16 11:55:32,764 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-16 11:55:32,764 INFO L386 tUnfolder$Statistics]: existing Event has 176 ancestors and is cut-off event [2022-11-16 11:55:32,764 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-16 11:55:32,764 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-16 11:55:32,772 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:32,772 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-16 11:55:32,772 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-16 11:55:32,772 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-16 11:55:32,772 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-16 11:55:32,804 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), 137#L99-4true, Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:32,804 INFO L383 tUnfolder$Statistics]: this new event has 372 ancestors and is cut-off event [2022-11-16 11:55:32,805 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-16 11:55:32,805 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-16 11:55:32,805 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-16 11:55:32,862 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, 628#L47-3true, Black: 742#true, Black: 747#true, 74#L99-1true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-16 11:55:32,862 INFO L383 tUnfolder$Statistics]: this new event has 374 ancestors and is cut-off event [2022-11-16 11:55:32,862 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-16 11:55:32,863 INFO L386 tUnfolder$Statistics]: existing Event has 367 ancestors and is cut-off event [2022-11-16 11:55:32,863 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-16 11:55:32,920 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-16 11:55:32,920 INFO L383 tUnfolder$Statistics]: this new event has 376 ancestors and is cut-off event [2022-11-16 11:55:32,920 INFO L386 tUnfolder$Statistics]: existing Event has 369 ancestors and is cut-off event [2022-11-16 11:55:32,921 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-16 11:55:32,921 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-16 11:55:32,948 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 137#L99-4true, 628#L47-3true, Black: 742#true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-16 11:55:32,948 INFO L383 tUnfolder$Statistics]: this new event has 377 ancestors and is cut-off event [2022-11-16 11:55:32,948 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-16 11:55:32,948 INFO L386 tUnfolder$Statistics]: existing Event has 370 ancestors and is cut-off event [2022-11-16 11:55:32,949 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-16 11:55:33,062 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:33,062 INFO L383 tUnfolder$Statistics]: this new event has 378 ancestors and is cut-off event [2022-11-16 11:55:33,062 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-16 11:55:33,062 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-16 11:55:33,062 INFO L386 tUnfolder$Statistics]: existing Event has 371 ancestors and is cut-off event [2022-11-16 11:55:33,063 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-16 11:55:33,077 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), 137#L99-4true, Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-16 11:55:33,077 INFO L383 tUnfolder$Statistics]: this new event has 379 ancestors and is cut-off event [2022-11-16 11:55:33,077 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-16 11:55:33,077 INFO L386 tUnfolder$Statistics]: existing Event has 372 ancestors and is cut-off event [2022-11-16 11:55:33,077 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-16 11:55:33,077 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-16 11:55:33,486 INFO L130 PetriNetUnfolder]: 15345/74692 cut-off events. [2022-11-16 11:55:33,487 INFO L131 PetriNetUnfolder]: For 59/989 co-relation queries the response was YES. [2022-11-16 11:55:33,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102500 conditions, 74692 events. 15345/74692 cut-off events. For 59/989 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 1029842 event pairs, 4572 based on Foata normal form. 48/66528 useless extension candidates. Maximal degree in co-relation 102400. Up to 7345 conditions per place. [2022-11-16 11:55:34,233 INFO L137 encePairwiseOnDemand]: 709/714 looper letters, 199 selfloop transitions, 4 changer transitions 0/764 dead transitions. [2022-11-16 11:55:34,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 764 transitions, 2020 flow [2022-11-16 11:55:34,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:55:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:55:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3960 transitions. [2022-11-16 11:55:34,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2022-11-16 11:55:34,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3960 transitions. [2022-11-16 11:55:34,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3960 transitions. [2022-11-16 11:55:34,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:55:34,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3960 transitions. [2022-11-16 11:55:34,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 660.0) internal successors, (3960), 6 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:34,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:34,277 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:34,277 INFO L175 Difference]: Start difference. First operand has 618 places, 621 transitions, 1328 flow. Second operand 6 states and 3960 transitions. [2022-11-16 11:55:34,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 764 transitions, 2020 flow [2022-11-16 11:55:34,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 764 transitions, 2020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:55:34,329 INFO L231 Difference]: Finished difference. Result has 622 places, 620 transitions, 1334 flow [2022-11-16 11:55:34,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=622, PETRI_TRANSITIONS=620} [2022-11-16 11:55:34,331 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-16 11:55:34,331 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 620 transitions, 1334 flow [2022-11-16 11:55:34,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:34,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:55:34,333 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:34,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:55:34,334 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-16 11:55:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:34,335 INFO L85 PathProgramCache]: Analyzing trace with hash 213087681, now seen corresponding path program 1 times [2022-11-16 11:55:34,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:34,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823526795] [2022-11-16 11:55:34,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:35,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:35,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823526795] [2022-11-16 11:55:35,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823526795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:35,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:35,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:55:35,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183649478] [2022-11-16 11:55:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:35,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:55:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:55:35,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:55:35,155 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-11-16 11:55:35,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 620 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:35,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:55:35,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-11-16 11:55:35,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand