./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:14:18,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:14:18,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:14:18,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:14:18,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:14:18,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:14:18,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:14:18,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:14:18,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:14:18,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:14:18,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:14:18,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:14:18,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:14:18,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:14:18,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:14:18,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:14:18,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:14:18,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:14:18,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:14:18,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:14:18,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:14:18,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:14:18,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:14:18,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:14:18,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:14:18,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:14:18,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:14:18,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:14:18,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:14:18,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:14:18,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:14:18,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:14:18,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:14:18,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:14:18,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:14:18,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:14:18,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:14:18,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:14:18,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:14:18,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:14:18,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:14:18,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:14:18,931 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:14:18,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:14:18,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:14:18,932 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:14:18,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:14:18,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:14:18,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:14:18,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:14:18,936 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:14:18,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:14:18,937 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:14:18,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:14:18,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:14:18,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:14:18,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:14:18,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:14:18,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:14:18,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:14:18,939 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:14:18,939 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:14:18,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:14:18,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:14:18,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:14:18,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:14:18,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:14:18,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:14:18,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:18,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:14:18,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:14:18,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:14:18,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:14:18,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:14:18,945 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:14:18,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:14:18,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:14:18,946 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_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 [2022-11-18 20:14:19,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:14:19,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:14:19,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:14:19,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:14:19,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:14:19,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-18 20:14:19,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/data/f7398c73f/2f9086923a0d43bb9d2b064cdb5b5584/FLAGe68dada07 [2022-11-18 20:14:19,963 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:14:19,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2022-11-18 20:14:19,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/data/f7398c73f/2f9086923a0d43bb9d2b064cdb5b5584/FLAGe68dada07 [2022-11-18 20:14:20,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/data/f7398c73f/2f9086923a0d43bb9d2b064cdb5b5584 [2022-11-18 20:14:20,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:14:20,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:14:20,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:20,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:14:20,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:14:20,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:20,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4c2c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20, skipping insertion in model container [2022-11-18 20:14:20,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:20,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:14:20,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:14:20,869 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-18 20:14:20,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:20,895 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:14:20,970 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-11-18 20:14:20,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:14:20,993 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:14:20,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20 WrapperNode [2022-11-18 20:14:20,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:14:20,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:20,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:14:20,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:14:21,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,148 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1305 [2022-11-18 20:14:21,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:14:21,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:14:21,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:14:21,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:14:21,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:14:21,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:14:21,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:14:21,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:14:21,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (1/1) ... [2022-11-18 20:14:21,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:14:21,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:14:21,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:14:21,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb1d98-1f87-4fcd-bb6e-be735e327192/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:14:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:14:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:14:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:14:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:14:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:14:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:14:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:14:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:14:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:14:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:14:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:14:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:14:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:14:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:14:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:14:21,399 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:14:21,605 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:14:21,619 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:14:23,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:14:23,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:14:23,654 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:14:23,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:23 BoogieIcfgContainer [2022-11-18 20:14:23,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:14:23,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:14:23,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:14:23,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:14:23,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:14:20" (1/3) ... [2022-11-18 20:14:23,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a164748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:23, skipping insertion in model container [2022-11-18 20:14:23,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:14:20" (2/3) ... [2022-11-18 20:14:23,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a164748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:14:23, skipping insertion in model container [2022-11-18 20:14:23,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:14:23" (3/3) ... [2022-11-18 20:14:23,698 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-11-18 20:14:23,710 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:14:23,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:14:23,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2022-11-18 20:14:23,722 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:14:24,055 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:14:24,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-18 20:14:26,344 INFO L130 PetriNetUnfolder]: 111/1754 cut-off events. [2022-11-18 20:14:26,345 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:14:26,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1754 events. 111/1754 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7798 event pairs, 0 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-18 20:14:26,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 1656 places, 1757 transitions, 3538 flow [2022-11-18 20:14:26,593 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1730 transitions, 3478 flow [2022-11-18 20:14:26,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:14:26,629 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;@46bcc98f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:14:26,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2022-11-18 20:14:26,648 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-18 20:14:26,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:14:26,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:26,657 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] [2022-11-18 20:14:26,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2460156, now seen corresponding path program 1 times [2022-11-18 20:14:26,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:26,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153783478] [2022-11-18 20:14:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:26,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:27,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153783478] [2022-11-18 20:14:27,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153783478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:27,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:27,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:27,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943462368] [2022-11-18 20:14:27,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:27,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:27,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:27,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:27,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:27,139 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:27,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:27,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:27,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:27,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:30,255 INFO L130 PetriNetUnfolder]: 145/2917 cut-off events. [2022-11-18 20:14:30,255 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-18 20:14:30,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2917 events. 145/2917 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 18251 event pairs, 21 based on Foata normal form. 222/2566 useless extension candidates. Maximal degree in co-relation 2516. Up to 63 conditions per place. [2022-11-18 20:14:30,479 INFO L137 encePairwiseOnDemand]: 1718/1757 looper letters, 15 selfloop transitions, 2 changer transitions 6/1693 dead transitions. [2022-11-18 20:14:30,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1632 places, 1693 transitions, 3438 flow [2022-11-18 20:14:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5157 transitions. [2022-11-18 20:14:30,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9783722253841776 [2022-11-18 20:14:30,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5157 transitions. [2022-11-18 20:14:30,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5157 transitions. [2022-11-18 20:14:30,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:30,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5157 transitions. [2022-11-18 20:14:30,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1719.0) internal successors, (5157), 3 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:30,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:30,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:30,591 INFO L175 Difference]: Start difference. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand 3 states and 5157 transitions. [2022-11-18 20:14:30,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1632 places, 1693 transitions, 3438 flow [2022-11-18 20:14:30,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1626 places, 1693 transitions, 3426 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:14:30,650 INFO L231 Difference]: Finished difference. Result has 1626 places, 1687 transitions, 3384 flow [2022-11-18 20:14:30,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3392, PETRI_DIFFERENCE_MINUEND_PLACES=1624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1626, PETRI_TRANSITIONS=1687} [2022-11-18 20:14:30,662 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -5 predicate places. [2022-11-18 20:14:30,663 INFO L495 AbstractCegarLoop]: Abstraction has has 1626 places, 1687 transitions, 3384 flow [2022-11-18 20:14:30,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:30,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:30,668 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] [2022-11-18 20:14:30,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:14:30,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:30,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:30,669 INFO L85 PathProgramCache]: Analyzing trace with hash 289982733, now seen corresponding path program 1 times [2022-11-18 20:14:30,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:30,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056523173] [2022-11-18 20:14:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:30,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:30,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:30,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056523173] [2022-11-18 20:14:30,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056523173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:30,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:30,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:30,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098912777] [2022-11-18 20:14:30,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:30,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:30,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:30,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:30,774 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:30,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:30,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:30,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:30,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:33,403 INFO L130 PetriNetUnfolder]: 145/2938 cut-off events. [2022-11-18 20:14:33,403 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-18 20:14:33,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 2938 events. 145/2938 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18962 event pairs, 21 based on Foata normal form. 0/2372 useless extension candidates. Maximal degree in co-relation 2967. Up to 63 conditions per place. [2022-11-18 20:14:33,625 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-18 20:14:33,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1686 transitions, 3416 flow [2022-11-18 20:14:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-18 20:14:33,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-18 20:14:33,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-18 20:14:33,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-18 20:14:33,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:33,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-18 20:14:33,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:33,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:33,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:33,692 INFO L175 Difference]: Start difference. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand 3 states and 5121 transitions. [2022-11-18 20:14:33,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1686 transitions, 3416 flow [2022-11-18 20:14:33,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:33,739 INFO L231 Difference]: Finished difference. Result has 1619 places, 1686 transitions, 3382 flow [2022-11-18 20:14:33,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1619, PETRI_TRANSITIONS=1686} [2022-11-18 20:14:33,743 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -12 predicate places. [2022-11-18 20:14:33,743 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1686 transitions, 3382 flow [2022-11-18 20:14:33,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:33,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:33,748 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] [2022-11-18 20:14:33,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:14:33,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:33,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash 717964022, now seen corresponding path program 1 times [2022-11-18 20:14:33,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:33,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601818290] [2022-11-18 20:14:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:33,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601818290] [2022-11-18 20:14:34,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601818290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:34,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:34,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:34,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023167450] [2022-11-18 20:14:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:34,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:34,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:34,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:34,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:34,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:34,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:34,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:34,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:37,836 INFO L130 PetriNetUnfolder]: 209/3970 cut-off events. [2022-11-18 20:14:37,836 INFO L131 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2022-11-18 20:14:38,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3970 events. 209/3970 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27694 event pairs, 39 based on Foata normal form. 0/3188 useless extension candidates. Maximal degree in co-relation 4031. Up to 90 conditions per place. [2022-11-18 20:14:38,129 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-18 20:14:38,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1685 transitions, 3414 flow [2022-11-18 20:14:38,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:38,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-18 20:14:38,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-18 20:14:38,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-18 20:14:38,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-18 20:14:38,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:38,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-18 20:14:38,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,188 INFO L175 Difference]: Start difference. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand 3 states and 5121 transitions. [2022-11-18 20:14:38,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1685 transitions, 3414 flow [2022-11-18 20:14:38,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1685 transitions, 3410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:38,218 INFO L231 Difference]: Finished difference. Result has 1618 places, 1685 transitions, 3380 flow [2022-11-18 20:14:38,221 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1618, PETRI_TRANSITIONS=1685} [2022-11-18 20:14:38,224 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -13 predicate places. [2022-11-18 20:14:38,225 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1685 transitions, 3380 flow [2022-11-18 20:14:38,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:38,227 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] [2022-11-18 20:14:38,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:14:38,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:38,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash 561648750, now seen corresponding path program 1 times [2022-11-18 20:14:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:38,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611983449] [2022-11-18 20:14:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:38,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:38,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:38,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611983449] [2022-11-18 20:14:38,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611983449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:38,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:38,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:38,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795634360] [2022-11-18 20:14:38,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:38,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:38,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:38,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:38,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:38,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:38,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:38,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:38,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:41,682 INFO L130 PetriNetUnfolder]: 209/4013 cut-off events. [2022-11-18 20:14:41,682 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-18 20:14:41,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4130 conditions, 4013 events. 209/4013 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 29375 event pairs, 39 based on Foata normal form. 0/3232 useless extension candidates. Maximal degree in co-relation 4067. Up to 90 conditions per place. [2022-11-18 20:14:41,909 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-18 20:14:41,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1684 transitions, 3412 flow [2022-11-18 20:14:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-18 20:14:41,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-18 20:14:41,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-18 20:14:41,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-18 20:14:41,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:41,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-18 20:14:41,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:41,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:41,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:41,956 INFO L175 Difference]: Start difference. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand 3 states and 5121 transitions. [2022-11-18 20:14:41,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1684 transitions, 3412 flow [2022-11-18 20:14:41,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1684 transitions, 3408 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:41,989 INFO L231 Difference]: Finished difference. Result has 1617 places, 1684 transitions, 3378 flow [2022-11-18 20:14:41,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1617, PETRI_TRANSITIONS=1684} [2022-11-18 20:14:41,993 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -14 predicate places. [2022-11-18 20:14:41,993 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1684 transitions, 3378 flow [2022-11-18 20:14:41,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:41,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:41,996 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] [2022-11-18 20:14:41,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:14:41,997 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:41,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:41,997 INFO L85 PathProgramCache]: Analyzing trace with hash -770615867, now seen corresponding path program 1 times [2022-11-18 20:14:41,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:41,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132992448] [2022-11-18 20:14:41,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:41,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:42,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:42,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132992448] [2022-11-18 20:14:42,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132992448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:42,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:42,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:42,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010148075] [2022-11-18 20:14:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:42,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:42,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:42,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:42,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:42,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:42,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:42,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:42,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:42,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:43,930 INFO L130 PetriNetUnfolder]: 140/2622 cut-off events. [2022-11-18 20:14:43,930 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 20:14:44,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2622 events. 140/2622 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 16095 event pairs, 39 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 2654. Up to 90 conditions per place. [2022-11-18 20:14:44,092 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-18 20:14:44,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1683 transitions, 3410 flow [2022-11-18 20:14:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:44,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-18 20:14:44,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-18 20:14:44,106 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-18 20:14:44,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-18 20:14:44,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:44,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-18 20:14:44,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:44,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:44,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:44,264 INFO L175 Difference]: Start difference. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand 3 states and 5121 transitions. [2022-11-18 20:14:44,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1683 transitions, 3410 flow [2022-11-18 20:14:44,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1683 transitions, 3406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:44,303 INFO L231 Difference]: Finished difference. Result has 1616 places, 1683 transitions, 3376 flow [2022-11-18 20:14:44,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1616, PETRI_TRANSITIONS=1683} [2022-11-18 20:14:44,308 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -15 predicate places. [2022-11-18 20:14:44,309 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1683 transitions, 3376 flow [2022-11-18 20:14:44,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:44,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:44,312 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] [2022-11-18 20:14:44,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:14:44,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1070639423, now seen corresponding path program 1 times [2022-11-18 20:14:44,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:44,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283021421] [2022-11-18 20:14:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:44,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:44,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:44,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:44,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283021421] [2022-11-18 20:14:44,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283021421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:44,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:44,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:44,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585764416] [2022-11-18 20:14:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:44,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:44,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:44,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-11-18 20:14:44,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:44,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:44,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-11-18 20:14:44,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:46,375 INFO L130 PetriNetUnfolder]: 140/2665 cut-off events. [2022-11-18 20:14:46,376 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-18 20:14:46,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 2665 events. 140/2665 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16965 event pairs, 39 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 2690. Up to 90 conditions per place. [2022-11-18 20:14:46,710 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-18 20:14:46,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1682 transitions, 3408 flow [2022-11-18 20:14:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-11-18 20:14:46,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-11-18 20:14:46,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-11-18 20:14:46,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-11-18 20:14:46,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:46,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-11-18 20:14:46,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:46,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:46,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:46,745 INFO L175 Difference]: Start difference. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand 3 states and 5121 transitions. [2022-11-18 20:14:46,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1682 transitions, 3408 flow [2022-11-18 20:14:46,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1682 transitions, 3404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:46,773 INFO L231 Difference]: Finished difference. Result has 1615 places, 1682 transitions, 3374 flow [2022-11-18 20:14:46,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1615, PETRI_TRANSITIONS=1682} [2022-11-18 20:14:46,776 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -16 predicate places. [2022-11-18 20:14:46,776 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1682 transitions, 3374 flow [2022-11-18 20:14:46,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:46,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:46,779 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] [2022-11-18 20:14:46,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:14:46,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:46,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:46,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1043121797, now seen corresponding path program 1 times [2022-11-18 20:14:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:46,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508596417] [2022-11-18 20:14:46,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:46,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:46,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:46,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508596417] [2022-11-18 20:14:46,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508596417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:46,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:46,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:46,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227859006] [2022-11-18 20:14:46,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:46,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:46,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:46,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:46,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:46,856 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-18 20:14:46,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:46,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:46,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-18 20:14:46,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:50,834 INFO L130 PetriNetUnfolder]: 349/5993 cut-off events. [2022-11-18 20:14:50,834 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-18 20:14:51,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 5993 events. 349/5993 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 49288 event pairs, 54 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 6126. Up to 154 conditions per place. [2022-11-18 20:14:51,155 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-18 20:14:51,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1681 transitions, 3454 flow [2022-11-18 20:14:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-18 20:14:51,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-18 20:14:51,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-18 20:14:51,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-18 20:14:51,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:51,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-18 20:14:51,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:51,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:51,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:51,192 INFO L175 Difference]: Start difference. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand 3 states and 5073 transitions. [2022-11-18 20:14:51,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1681 transitions, 3454 flow [2022-11-18 20:14:51,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1681 transitions, 3450 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:51,221 INFO L231 Difference]: Finished difference. Result has 1614 places, 1681 transitions, 3372 flow [2022-11-18 20:14:51,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1614, PETRI_TRANSITIONS=1681} [2022-11-18 20:14:51,225 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -17 predicate places. [2022-11-18 20:14:51,225 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1681 transitions, 3372 flow [2022-11-18 20:14:51,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:51,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:51,228 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] [2022-11-18 20:14:51,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:14:51,228 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:51,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash 582048296, now seen corresponding path program 1 times [2022-11-18 20:14:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:51,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853556212] [2022-11-18 20:14:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:51,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:51,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:51,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853556212] [2022-11-18 20:14:51,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853556212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:51,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:51,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:51,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52137713] [2022-11-18 20:14:51,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:51,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:51,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:51,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:51,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:51,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-18 20:14:51,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:51,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:51,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-18 20:14:51,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:53,644 INFO L130 PetriNetUnfolder]: 242/3331 cut-off events. [2022-11-18 20:14:53,644 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-18 20:14:53,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3666 conditions, 3331 events. 242/3331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 23097 event pairs, 90 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 3575. Up to 236 conditions per place. [2022-11-18 20:14:53,817 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-18 20:14:53,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1680 transitions, 3482 flow [2022-11-18 20:14:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:53,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-18 20:14:53,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-18 20:14:53,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-18 20:14:53,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-18 20:14:53,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:53,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-18 20:14:53,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:53,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:53,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:53,851 INFO L175 Difference]: Start difference. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand 3 states and 5043 transitions. [2022-11-18 20:14:53,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1680 transitions, 3482 flow [2022-11-18 20:14:53,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:53,879 INFO L231 Difference]: Finished difference. Result has 1613 places, 1680 transitions, 3370 flow [2022-11-18 20:14:53,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1613, PETRI_TRANSITIONS=1680} [2022-11-18 20:14:53,882 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -18 predicate places. [2022-11-18 20:14:53,882 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1680 transitions, 3370 flow [2022-11-18 20:14:53,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:53,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:53,884 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] [2022-11-18 20:14:53,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:14:53,885 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:53,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1926025025, now seen corresponding path program 1 times [2022-11-18 20:14:53,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:53,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419585295] [2022-11-18 20:14:53,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:53,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419585295] [2022-11-18 20:14:53,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419585295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:53,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:53,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:53,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833551907] [2022-11-18 20:14:53,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:53,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:53,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:53,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:53,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:53,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-18 20:14:53,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:53,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:53,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-18 20:14:53,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:14:57,824 INFO L130 PetriNetUnfolder]: 257/4235 cut-off events. [2022-11-18 20:14:57,824 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-18 20:14:58,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 4235 events. 257/4235 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31231 event pairs, 54 based on Foata normal form. 0/3359 useless extension candidates. Maximal degree in co-relation 4327. Up to 154 conditions per place. [2022-11-18 20:14:58,117 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-18 20:14:58,118 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1679 transitions, 3450 flow [2022-11-18 20:14:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:14:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:14:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-11-18 20:14:58,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-11-18 20:14:58,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-11-18 20:14:58,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-11-18 20:14:58,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:14:58,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-11-18 20:14:58,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:58,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:58,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:58,141 INFO L175 Difference]: Start difference. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand 3 states and 5073 transitions. [2022-11-18 20:14:58,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1679 transitions, 3450 flow [2022-11-18 20:14:58,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1679 transitions, 3446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:14:58,165 INFO L231 Difference]: Finished difference. Result has 1612 places, 1679 transitions, 3368 flow [2022-11-18 20:14:58,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1612, PETRI_TRANSITIONS=1679} [2022-11-18 20:14:58,169 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -19 predicate places. [2022-11-18 20:14:58,169 INFO L495 AbstractCegarLoop]: Abstraction has has 1612 places, 1679 transitions, 3368 flow [2022-11-18 20:14:58,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:58,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:14:58,170 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] [2022-11-18 20:14:58,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:14:58,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:14:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:14:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash -662743647, now seen corresponding path program 1 times [2022-11-18 20:14:58,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:14:58,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797256482] [2022-11-18 20:14:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:14:58,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:14:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:14:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:14:58,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:14:58,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797256482] [2022-11-18 20:14:58,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797256482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:14:58,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:14:58,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:14:58,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736469215] [2022-11-18 20:14:58,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:14:58,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:14:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:58,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:14:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:14:58,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-18 20:14:58,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:14:58,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:14:58,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-18 20:14:58,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:00,783 INFO L130 PetriNetUnfolder]: 219/2890 cut-off events. [2022-11-18 20:15:00,783 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-18 20:15:00,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 2890 events. 219/2890 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 20631 event pairs, 90 based on Foata normal form. 0/2324 useless extension candidates. Maximal degree in co-relation 3075. Up to 236 conditions per place. [2022-11-18 20:15:00,987 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-11-18 20:15:00,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1613 places, 1678 transitions, 3478 flow [2022-11-18 20:15:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:15:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:15:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-18 20:15:00,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-18 20:15:00,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-18 20:15:00,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-18 20:15:00,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:00,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-18 20:15:01,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:01,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:01,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:01,017 INFO L175 Difference]: Start difference. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand 3 states and 5043 transitions. [2022-11-18 20:15:01,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1613 places, 1678 transitions, 3478 flow [2022-11-18 20:15:01,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1611 places, 1678 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:15:01,059 INFO L231 Difference]: Finished difference. Result has 1611 places, 1678 transitions, 3366 flow [2022-11-18 20:15:01,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3366, PETRI_PLACES=1611, PETRI_TRANSITIONS=1678} [2022-11-18 20:15:01,063 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -20 predicate places. [2022-11-18 20:15:01,063 INFO L495 AbstractCegarLoop]: Abstraction has has 1611 places, 1678 transitions, 3366 flow [2022-11-18 20:15:01,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:01,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:01,065 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] [2022-11-18 20:15:01,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:15:01,065 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:15:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1778098929, now seen corresponding path program 1 times [2022-11-18 20:15:01,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:01,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543558970] [2022-11-18 20:15:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:01,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:01,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:01,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543558970] [2022-11-18 20:15:01,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543558970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:01,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:01,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:15:01,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394845811] [2022-11-18 20:15:01,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:01,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:15:01,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:01,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:15:01,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:15:01,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-11-18 20:15:01,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:01,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:01,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-11-18 20:15:01,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:03,048 INFO L130 PetriNetUnfolder]: 165/2461 cut-off events. [2022-11-18 20:15:03,048 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-18 20:15:03,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 2461 events. 165/2461 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14431 event pairs, 54 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 2511. Up to 153 conditions per place. [2022-11-18 20:15:03,183 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 38 selfloop transitions, 2 changer transitions 0/1677 dead transitions. [2022-11-18 20:15:03,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1612 places, 1677 transitions, 3444 flow [2022-11-18 20:15:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:15:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:15:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5072 transitions. [2022-11-18 20:15:03,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9622462530829065 [2022-11-18 20:15:03,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5072 transitions. [2022-11-18 20:15:03,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5072 transitions. [2022-11-18 20:15:03,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:03,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5072 transitions. [2022-11-18 20:15:03,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1690.6666666666667) internal successors, (5072), 3 states have internal predecessors, (5072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:03,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:03,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:03,214 INFO L175 Difference]: Start difference. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand 3 states and 5072 transitions. [2022-11-18 20:15:03,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1612 places, 1677 transitions, 3444 flow [2022-11-18 20:15:03,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1610 places, 1677 transitions, 3440 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:15:03,247 INFO L231 Difference]: Finished difference. Result has 1610 places, 1677 transitions, 3364 flow [2022-11-18 20:15:03,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3360, PETRI_DIFFERENCE_MINUEND_PLACES=1608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3364, PETRI_PLACES=1610, PETRI_TRANSITIONS=1677} [2022-11-18 20:15:03,250 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -21 predicate places. [2022-11-18 20:15:03,251 INFO L495 AbstractCegarLoop]: Abstraction has has 1610 places, 1677 transitions, 3364 flow [2022-11-18 20:15:03,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:03,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:03,252 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] [2022-11-18 20:15:03,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:15:03,253 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:15:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1353597218, now seen corresponding path program 1 times [2022-11-18 20:15:03,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:03,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498819516] [2022-11-18 20:15:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:03,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:03,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498819516] [2022-11-18 20:15:03,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498819516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:03,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:03,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:15:03,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25392518] [2022-11-18 20:15:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:03,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:15:03,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:15:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:15:03,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-11-18 20:15:03,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:03,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:03,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-11-18 20:15:03,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:05,139 INFO L130 PetriNetUnfolder]: 196/2429 cut-off events. [2022-11-18 20:15:05,139 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-18 20:15:05,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 2429 events. 196/2429 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16871 event pairs, 90 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 2555. Up to 236 conditions per place. [2022-11-18 20:15:05,295 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1676 dead transitions. [2022-11-18 20:15:05,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1611 places, 1676 transitions, 3474 flow [2022-11-18 20:15:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:15:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:15:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-11-18 20:15:05,304 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-11-18 20:15:05,304 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-11-18 20:15:05,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-11-18 20:15:05,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:05,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-11-18 20:15:05,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:05,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:05,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:05,322 INFO L175 Difference]: Start difference. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand 3 states and 5043 transitions. [2022-11-18 20:15:05,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1611 places, 1676 transitions, 3474 flow [2022-11-18 20:15:05,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1609 places, 1676 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:15:05,352 INFO L231 Difference]: Finished difference. Result has 1609 places, 1676 transitions, 3362 flow [2022-11-18 20:15:05,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3358, PETRI_DIFFERENCE_MINUEND_PLACES=1607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3362, PETRI_PLACES=1609, PETRI_TRANSITIONS=1676} [2022-11-18 20:15:05,355 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -22 predicate places. [2022-11-18 20:15:05,356 INFO L495 AbstractCegarLoop]: Abstraction has has 1609 places, 1676 transitions, 3362 flow [2022-11-18 20:15:05,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:05,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:05,357 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] [2022-11-18 20:15:05,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:15:05,358 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:15:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1406992855, now seen corresponding path program 1 times [2022-11-18 20:15:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:05,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881433668] [2022-11-18 20:15:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:05,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:05,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881433668] [2022-11-18 20:15:05,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881433668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:05,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:05,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:15:05,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075277223] [2022-11-18 20:15:05,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:05,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:15:05,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:05,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:15:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:15:05,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-18 20:15:05,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:05,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:05,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-18 20:15:05,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:15:12,991 INFO L130 PetriNetUnfolder]: 661/9322 cut-off events. [2022-11-18 20:15:12,991 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-18 20:15:13,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9783 conditions, 9322 events. 661/9322 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 91913 event pairs, 192 based on Foata normal form. 0/7323 useless extension candidates. Maximal degree in co-relation 9657. Up to 428 conditions per place. [2022-11-18 20:15:14,339 INFO L137 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1675 dead transitions. [2022-11-18 20:15:14,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1610 places, 1675 transitions, 3430 flow [2022-11-18 20:15:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:15:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:15:14,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-18 20:15:14,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-11-18 20:15:14,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-18 20:15:14,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-18 20:15:14,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:15:14,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-18 20:15:14,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:14,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:14,365 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:14,366 INFO L175 Difference]: Start difference. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand 3 states and 5085 transitions. [2022-11-18 20:15:14,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1610 places, 1675 transitions, 3430 flow [2022-11-18 20:15:14,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1608 places, 1675 transitions, 3426 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:15:14,397 INFO L231 Difference]: Finished difference. Result has 1608 places, 1675 transitions, 3360 flow [2022-11-18 20:15:14,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3356, PETRI_DIFFERENCE_MINUEND_PLACES=1606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3360, PETRI_PLACES=1608, PETRI_TRANSITIONS=1675} [2022-11-18 20:15:14,400 INFO L288 CegarLoopForPetriNet]: 1631 programPoint places, -23 predicate places. [2022-11-18 20:15:14,400 INFO L495 AbstractCegarLoop]: Abstraction has has 1608 places, 1675 transitions, 3360 flow [2022-11-18 20:15:14,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:14,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:15:14,402 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] [2022-11-18 20:15:14,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:15:14,402 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-11-18 20:15:14,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1008633673, now seen corresponding path program 1 times [2022-11-18 20:15:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:14,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546316440] [2022-11-18 20:15:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:15:14,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:15:14,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546316440] [2022-11-18 20:15:14,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546316440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:15:14,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:15:14,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:15:14,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724920123] [2022-11-18 20:15:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:15:14,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:15:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:15:14,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:15:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:15:14,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-11-18 20:15:14,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:15:14,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:15:14,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-11-18 20:15:14,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand