./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:44:35,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:44:35,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:44:35,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:44:35,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:44:35,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:44:35,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:44:35,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:44:35,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:44:35,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:44:35,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:44:35,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:44:35,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:44:35,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:44:35,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:44:35,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:44:35,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:44:35,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:44:35,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:44:35,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:44:35,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:44:35,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:44:35,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:44:35,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:44:35,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:44:35,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:44:35,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:44:35,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:44:35,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:44:35,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:44:35,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:44:35,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:44:35,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:44:35,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:44:35,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:44:35,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:44:35,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:44:35,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:44:35,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:44:35,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:44:35,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:44:35,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:44:35,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:44:35,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:44:35,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:44:35,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:44:35,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:44:35,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:44:35,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:44:35,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:44:35,968 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:44:35,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:44:35,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:44:35,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:44:35,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:44:35,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:44:35,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:44:35,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:44:35,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:44:35,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:44:35,973 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:44:35,973 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:44:35,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:44:35,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:44:35,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:44:35,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:44:35,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:44:35,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:44:35,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:35,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:44:35,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:44:35,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:44:35,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:44:35,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:44:35,986 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:44:35,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:44:35,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:44:35,987 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_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2022-11-16 11:44:36,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:44:36,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:44:36,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:44:36,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:44:36,358 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:44:36,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-16 11:44:36,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/data/381b2b1cb/8f98a7c50ae649e3a1ce3737c56da5de/FLAG25915dc54 [2022-11-16 11:44:37,041 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:44:37,055 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2022-11-16 11:44:37,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/data/381b2b1cb/8f98a7c50ae649e3a1ce3737c56da5de/FLAG25915dc54 [2022-11-16 11:44:37,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/data/381b2b1cb/8f98a7c50ae649e3a1ce3737c56da5de [2022-11-16 11:44:37,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:44:37,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:44:37,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:37,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:44:37,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:44:37,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:37" (1/1) ... [2022-11-16 11:44:37,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62133352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:37, skipping insertion in model container [2022-11-16 11:44:37,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:37" (1/1) ... [2022-11-16 11:44:37,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:44:37,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:44:38,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:38,184 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:44:38,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:44:38,350 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:44:38,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38 WrapperNode [2022-11-16 11:44:38,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:44:38,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:38,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:44:38,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:44:38,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,443 INFO L138 Inliner]: procedures = 368, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 184 [2022-11-16 11:44:38,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:44:38,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:44:38,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:44:38,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:44:38,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,504 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:44:38,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:44:38,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:44:38,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:44:38,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (1/1) ... [2022-11-16 11:44:38,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:44:38,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:38,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:44:38,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bf136cf-7fc0-4ce5-95e5-af50b52879ad/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:44:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:44:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:44:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:44:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:44:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:44:38,601 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:44:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:44:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:44:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:44:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:44:38,602 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:44:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:44:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:44:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:44:38,605 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:44:38,760 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:44:38,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:44:39,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:44:39,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:44:39,385 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:44:39,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:39 BoogieIcfgContainer [2022-11-16 11:44:39,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:44:39,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:44:39,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:44:39,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:44:39,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:44:37" (1/3) ... [2022-11-16 11:44:39,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1332490e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:39, skipping insertion in model container [2022-11-16 11:44:39,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:38" (2/3) ... [2022-11-16 11:44:39,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1332490e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:39, skipping insertion in model container [2022-11-16 11:44:39,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:44:39" (3/3) ... [2022-11-16 11:44:39,401 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2022-11-16 11:44:39,412 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:44:39,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:44:39,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-16 11:44:39,424 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:44:39,563 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:44:39,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 286 transitions, 577 flow [2022-11-16 11:44:39,796 INFO L130 PetriNetUnfolder]: 0/285 cut-off events. [2022-11-16 11:44:39,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:39,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 285 events. 0/285 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 11:44:39,803 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 286 transitions, 577 flow [2022-11-16 11:44:39,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 285 transitions, 573 flow [2022-11-16 11:44:39,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:44:39,850 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;@56669b8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:44:39,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-16 11:44:39,864 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-16 11:44:39,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:39,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:39,865 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:39,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:39,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2019786680, now seen corresponding path program 1 times [2022-11-16 11:44:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:39,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21761718] [2022-11-16 11:44:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:40,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:40,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21761718] [2022-11-16 11:44:40,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21761718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:40,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:40,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:40,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761629501] [2022-11-16 11:44:40,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:40,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:40,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:40,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:40,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 286 [2022-11-16 11:44:40,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 285 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:40,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:40,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 286 [2022-11-16 11:44:40,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:42,132 INFO L130 PetriNetUnfolder]: 864/2847 cut-off events. [2022-11-16 11:44:42,133 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:44:42,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 2847 events. 864/2847 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17813 event pairs, 864 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4478. Up to 1838 conditions per place. [2022-11-16 11:44:42,154 INFO L137 encePairwiseOnDemand]: 268/286 looper letters, 109 selfloop transitions, 15 changer transitions 0/282 dead transitions. [2022-11-16 11:44:42,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 282 transitions, 815 flow [2022-11-16 11:44:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1081 transitions. [2022-11-16 11:44:42,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.62995337995338 [2022-11-16 11:44:42,214 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1081 transitions. [2022-11-16 11:44:42,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1081 transitions. [2022-11-16 11:44:42,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:42,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1081 transitions. [2022-11-16 11:44:42,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.16666666666666) internal successors, (1081), 6 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:42,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:42,239 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:42,241 INFO L175 Difference]: Start difference. First operand has 289 places, 285 transitions, 573 flow. Second operand 6 states and 1081 transitions. [2022-11-16 11:44:42,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 282 transitions, 815 flow [2022-11-16 11:44:42,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 282 transitions, 814 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:44:42,254 INFO L231 Difference]: Finished difference. Result has 290 places, 282 transitions, 596 flow [2022-11-16 11:44:42,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=596, PETRI_PLACES=290, PETRI_TRANSITIONS=282} [2022-11-16 11:44:42,260 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 1 predicate places. [2022-11-16 11:44:42,260 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 282 transitions, 596 flow [2022-11-16 11:44:42,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:42,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:42,262 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] [2022-11-16 11:44:42,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:44:42,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 433367205, now seen corresponding path program 1 times [2022-11-16 11:44:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:42,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809613944] [2022-11-16 11:44:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:42,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809613944] [2022-11-16 11:44:42,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809613944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:42,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:42,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:42,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087388970] [2022-11-16 11:44:42,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:42,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:42,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:42,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:42,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:42,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 286 [2022-11-16 11:44:42,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 282 transitions, 596 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:42,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:42,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 286 [2022-11-16 11:44:42,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:43,774 INFO L130 PetriNetUnfolder]: 864/2844 cut-off events. [2022-11-16 11:44:43,774 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:44:43,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4713 conditions, 2844 events. 864/2844 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17864 event pairs, 864 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4520. Up to 1835 conditions per place. [2022-11-16 11:44:43,787 INFO L137 encePairwiseOnDemand]: 268/286 looper letters, 106 selfloop transitions, 15 changer transitions 0/279 dead transitions. [2022-11-16 11:44:43,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 279 transitions, 832 flow [2022-11-16 11:44:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:43,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:43,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1078 transitions. [2022-11-16 11:44:43,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2022-11-16 11:44:43,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1078 transitions. [2022-11-16 11:44:43,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1078 transitions. [2022-11-16 11:44:43,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:43,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1078 transitions. [2022-11-16 11:44:43,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:43,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:43,799 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:43,799 INFO L175 Difference]: Start difference. First operand has 290 places, 282 transitions, 596 flow. Second operand 6 states and 1078 transitions. [2022-11-16 11:44:43,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 279 transitions, 832 flow [2022-11-16 11:44:43,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 279 transitions, 802 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:44:43,805 INFO L231 Difference]: Finished difference. Result has 287 places, 279 transitions, 590 flow [2022-11-16 11:44:43,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=590, PETRI_PLACES=287, PETRI_TRANSITIONS=279} [2022-11-16 11:44:43,807 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -2 predicate places. [2022-11-16 11:44:43,807 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 279 transitions, 590 flow [2022-11-16 11:44:43,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:43,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:43,808 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] [2022-11-16 11:44:43,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:44:43,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1886336480, now seen corresponding path program 1 times [2022-11-16 11:44:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:43,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657956998] [2022-11-16 11:44:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:43,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:43,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657956998] [2022-11-16 11:44:43,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657956998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:43,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:43,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:44:43,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875854878] [2022-11-16 11:44:43,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:43,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:44:43,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:44:43,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:44:43,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 286 [2022-11-16 11:44:43,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 279 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:43,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:43,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 286 [2022-11-16 11:44:43,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:44,021 INFO L130 PetriNetUnfolder]: 9/506 cut-off events. [2022-11-16 11:44:44,022 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:44,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 506 events. 9/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1503 event pairs, 9 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-16 11:44:44,024 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 16 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2022-11-16 11:44:44,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 278 transitions, 624 flow [2022-11-16 11:44:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:44:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-16 11:44:44,027 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9557109557109557 [2022-11-16 11:44:44,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-16 11:44:44,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-16 11:44:44,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:44,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-16 11:44:44,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,035 INFO L175 Difference]: Start difference. First operand has 287 places, 279 transitions, 590 flow. Second operand 3 states and 820 transitions. [2022-11-16 11:44:44,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 278 transitions, 624 flow [2022-11-16 11:44:44,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 278 transitions, 594 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:44:44,040 INFO L231 Difference]: Finished difference. Result has 283 places, 278 transitions, 562 flow [2022-11-16 11:44:44,041 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=283, PETRI_TRANSITIONS=278} [2022-11-16 11:44:44,044 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -6 predicate places. [2022-11-16 11:44:44,044 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 278 transitions, 562 flow [2022-11-16 11:44:44,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,045 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:44,045 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] [2022-11-16 11:44:44,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:44:44,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:44,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1758764611, now seen corresponding path program 1 times [2022-11-16 11:44:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:44,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668008076] [2022-11-16 11:44:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:44,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:44,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:44,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668008076] [2022-11-16 11:44:44,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668008076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:44,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:44,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:44:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693618511] [2022-11-16 11:44:44,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:44,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:44:44,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:44,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:44:44,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:44:44,128 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 286 [2022-11-16 11:44:44,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 278 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:44,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 286 [2022-11-16 11:44:44,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:44,206 INFO L130 PetriNetUnfolder]: 4/443 cut-off events. [2022-11-16 11:44:44,206 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:44:44,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 443 events. 4/443 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1079 event pairs, 4 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 395. Up to 17 conditions per place. [2022-11-16 11:44:44,209 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 10 selfloop transitions, 1 changer transitions 0/274 dead transitions. [2022-11-16 11:44:44,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 274 transitions, 576 flow [2022-11-16 11:44:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:44,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:44:44,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2022-11-16 11:44:44,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2022-11-16 11:44:44,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2022-11-16 11:44:44,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2022-11-16 11:44:44,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:44,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2022-11-16 11:44:44,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,222 INFO L175 Difference]: Start difference. First operand has 283 places, 278 transitions, 562 flow. Second operand 3 states and 825 transitions. [2022-11-16 11:44:44,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 274 transitions, 576 flow [2022-11-16 11:44:44,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 274 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:44:44,227 INFO L231 Difference]: Finished difference. Result has 279 places, 274 transitions, 552 flow [2022-11-16 11:44:44,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=279, PETRI_TRANSITIONS=274} [2022-11-16 11:44:44,229 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -10 predicate places. [2022-11-16 11:44:44,229 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 274 transitions, 552 flow [2022-11-16 11:44:44,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:44,230 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] [2022-11-16 11:44:44,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:44:44,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:44,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:44,231 INFO L85 PathProgramCache]: Analyzing trace with hash 894955619, now seen corresponding path program 1 times [2022-11-16 11:44:44,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:44,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282970102] [2022-11-16 11:44:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:44,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:44,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:44,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282970102] [2022-11-16 11:44:44,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282970102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:44,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:44,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:44,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959884704] [2022-11-16 11:44:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:44,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:44,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:44,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-16 11:44:44,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 274 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:44,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:44,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-16 11:44:44,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:45,619 INFO L130 PetriNetUnfolder]: 925/3010 cut-off events. [2022-11-16 11:44:45,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:45,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4977 conditions, 3010 events. 925/3010 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19037 event pairs, 925 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 4892. Up to 1957 conditions per place. [2022-11-16 11:44:45,636 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 106 selfloop transitions, 5 changer transitions 0/273 dead transitions. [2022-11-16 11:44:45,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 273 transitions, 772 flow [2022-11-16 11:44:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:45,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1120 transitions. [2022-11-16 11:44:45,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6526806526806527 [2022-11-16 11:44:45,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1120 transitions. [2022-11-16 11:44:45,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1120 transitions. [2022-11-16 11:44:45,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:45,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1120 transitions. [2022-11-16 11:44:45,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,651 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,651 INFO L175 Difference]: Start difference. First operand has 279 places, 274 transitions, 552 flow. Second operand 6 states and 1120 transitions. [2022-11-16 11:44:45,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 273 transitions, 772 flow [2022-11-16 11:44:45,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 273 transitions, 771 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:44:45,658 INFO L231 Difference]: Finished difference. Result has 282 places, 273 transitions, 559 flow [2022-11-16 11:44:45,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=559, PETRI_PLACES=282, PETRI_TRANSITIONS=273} [2022-11-16 11:44:45,659 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -7 predicate places. [2022-11-16 11:44:45,660 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 273 transitions, 559 flow [2022-11-16 11:44:45,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:45,661 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] [2022-11-16 11:44:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:44:45,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:45,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1539731552, now seen corresponding path program 1 times [2022-11-16 11:44:45,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285246597] [2022-11-16 11:44:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:45,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:45,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285246597] [2022-11-16 11:44:45,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285246597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:45,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:45,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:44:45,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871284740] [2022-11-16 11:44:45,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:45,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:44:45,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:45,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:44:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:44:45,781 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 286 [2022-11-16 11:44:45,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 273 transitions, 559 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:45,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 286 [2022-11-16 11:44:45,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:45,867 INFO L130 PetriNetUnfolder]: 9/405 cut-off events. [2022-11-16 11:44:45,881 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:45,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 405 events. 9/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 777 event pairs, 9 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 379. Up to 35 conditions per place. [2022-11-16 11:44:45,884 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 16 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2022-11-16 11:44:45,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 272 transitions, 593 flow [2022-11-16 11:44:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:45,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:44:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-16 11:44:45,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9557109557109557 [2022-11-16 11:44:45,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-16 11:44:45,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-16 11:44:45,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:45,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-16 11:44:45,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,893 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,893 INFO L175 Difference]: Start difference. First operand has 282 places, 273 transitions, 559 flow. Second operand 3 states and 820 transitions. [2022-11-16 11:44:45,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 272 transitions, 593 flow [2022-11-16 11:44:45,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 272 transitions, 583 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:44:45,898 INFO L231 Difference]: Finished difference. Result has 278 places, 272 transitions, 551 flow [2022-11-16 11:44:45,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=278, PETRI_TRANSITIONS=272} [2022-11-16 11:44:45,902 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -11 predicate places. [2022-11-16 11:44:45,902 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 272 transitions, 551 flow [2022-11-16 11:44:45,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:45,903 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] [2022-11-16 11:44:45,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:44:45,903 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash -930597695, now seen corresponding path program 1 times [2022-11-16 11:44:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:45,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707099854] [2022-11-16 11:44:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:45,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707099854] [2022-11-16 11:44:45,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707099854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:45,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:45,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:44:45,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707723355] [2022-11-16 11:44:45,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:45,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:44:45,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:44:45,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:44:45,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 286 [2022-11-16 11:44:45,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 272 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:45,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:45,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 286 [2022-11-16 11:44:45,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:46,058 INFO L130 PetriNetUnfolder]: 4/361 cut-off events. [2022-11-16 11:44:46,059 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:44:46,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 361 events. 4/361 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 524 event pairs, 4 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 316. Up to 17 conditions per place. [2022-11-16 11:44:46,061 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 10 selfloop transitions, 1 changer transitions 0/268 dead transitions. [2022-11-16 11:44:46,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 268 transitions, 565 flow [2022-11-16 11:44:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:44:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2022-11-16 11:44:46,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9615384615384616 [2022-11-16 11:44:46,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2022-11-16 11:44:46,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2022-11-16 11:44:46,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:46,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2022-11-16 11:44:46,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:46,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:46,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:46,069 INFO L175 Difference]: Start difference. First operand has 278 places, 272 transitions, 551 flow. Second operand 3 states and 825 transitions. [2022-11-16 11:44:46,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 268 transitions, 565 flow [2022-11-16 11:44:46,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 268 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:44:46,075 INFO L231 Difference]: Finished difference. Result has 274 places, 268 transitions, 541 flow [2022-11-16 11:44:46,075 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=274, PETRI_TRANSITIONS=268} [2022-11-16 11:44:46,076 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -15 predicate places. [2022-11-16 11:44:46,076 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 268 transitions, 541 flow [2022-11-16 11:44:46,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:46,077 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:46,077 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:46,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:44:46,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1661222507, now seen corresponding path program 1 times [2022-11-16 11:44:46,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:46,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996920287] [2022-11-16 11:44:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:46,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:46,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996920287] [2022-11-16 11:44:46,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996920287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:46,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:46,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724205073] [2022-11-16 11:44:46,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:46,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:46,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:46,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-16 11:44:46,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 268 transitions, 541 flow. Second operand has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:46,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:46,775 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-16 11:44:46,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:47,518 INFO L130 PetriNetUnfolder]: 925/2921 cut-off events. [2022-11-16 11:44:47,519 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:44:47,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4888 conditions, 2921 events. 925/2921 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18305 event pairs, 925 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 4804. Up to 1956 conditions per place. [2022-11-16 11:44:47,534 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 105 selfloop transitions, 5 changer transitions 0/267 dead transitions. [2022-11-16 11:44:47,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 267 transitions, 759 flow [2022-11-16 11:44:47,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:47,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1119 transitions. [2022-11-16 11:44:47,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6520979020979021 [2022-11-16 11:44:47,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1119 transitions. [2022-11-16 11:44:47,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1119 transitions. [2022-11-16 11:44:47,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:47,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1119 transitions. [2022-11-16 11:44:47,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.5) internal successors, (1119), 6 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:47,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:47,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:47,546 INFO L175 Difference]: Start difference. First operand has 274 places, 268 transitions, 541 flow. Second operand 6 states and 1119 transitions. [2022-11-16 11:44:47,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 267 transitions, 759 flow [2022-11-16 11:44:47,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 267 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:44:47,552 INFO L231 Difference]: Finished difference. Result has 277 places, 267 transitions, 548 flow [2022-11-16 11:44:47,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=548, PETRI_PLACES=277, PETRI_TRANSITIONS=267} [2022-11-16 11:44:47,553 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -12 predicate places. [2022-11-16 11:44:47,554 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 267 transitions, 548 flow [2022-11-16 11:44:47,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:47,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:47,555 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:47,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:44:47,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:47,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1597179399, now seen corresponding path program 1 times [2022-11-16 11:44:47,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:47,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861273712] [2022-11-16 11:44:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:48,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:48,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861273712] [2022-11-16 11:44:48,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861273712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:48,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:48,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:48,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772323456] [2022-11-16 11:44:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:48,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:48,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:48,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-16 11:44:48,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 267 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:48,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:48,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-16 11:44:48,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:49,867 INFO L130 PetriNetUnfolder]: 1392/4456 cut-off events. [2022-11-16 11:44:49,867 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:44:49,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7405 conditions, 4456 events. 1392/4456 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32572 event pairs, 181 based on Foata normal form. 0/4011 useless extension candidates. Maximal degree in co-relation 7321. Up to 1396 conditions per place. [2022-11-16 11:44:49,889 INFO L137 encePairwiseOnDemand]: 267/286 looper letters, 210 selfloop transitions, 38 changer transitions 0/408 dead transitions. [2022-11-16 11:44:49,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 408 transitions, 1326 flow [2022-11-16 11:44:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:49,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1276 transitions. [2022-11-16 11:44:49,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2022-11-16 11:44:49,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1276 transitions. [2022-11-16 11:44:49,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1276 transitions. [2022-11-16 11:44:49,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:49,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1276 transitions. [2022-11-16 11:44:49,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:49,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:49,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:49,902 INFO L175 Difference]: Start difference. First operand has 277 places, 267 transitions, 548 flow. Second operand 6 states and 1276 transitions. [2022-11-16 11:44:49,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 408 transitions, 1326 flow [2022-11-16 11:44:49,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 408 transitions, 1316 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:44:49,910 INFO L231 Difference]: Finished difference. Result has 281 places, 303 transitions, 796 flow [2022-11-16 11:44:49,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=281, PETRI_TRANSITIONS=303} [2022-11-16 11:44:49,911 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -8 predicate places. [2022-11-16 11:44:49,912 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 303 transitions, 796 flow [2022-11-16 11:44:49,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:49,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:49,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:49,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:44:49,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2099699453, now seen corresponding path program 1 times [2022-11-16 11:44:49,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:49,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466169521] [2022-11-16 11:44:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:49,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:50,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:50,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466169521] [2022-11-16 11:44:50,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466169521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:50,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:50,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:50,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643123706] [2022-11-16 11:44:50,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:50,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:50,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:50,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:50,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:50,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 286 [2022-11-16 11:44:50,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 303 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:50,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:50,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 286 [2022-11-16 11:44:50,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:52,008 INFO L130 PetriNetUnfolder]: 1425/4558 cut-off events. [2022-11-16 11:44:52,008 INFO L131 PetriNetUnfolder]: For 1051/1051 co-relation queries the response was YES. [2022-11-16 11:44:52,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8680 conditions, 4558 events. 1425/4558 cut-off events. For 1051/1051 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32927 event pairs, 936 based on Foata normal form. 0/4111 useless extension candidates. Maximal degree in co-relation 8594. Up to 2720 conditions per place. [2022-11-16 11:44:52,046 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 227 selfloop transitions, 5 changer transitions 0/394 dead transitions. [2022-11-16 11:44:52,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 394 transitions, 1482 flow [2022-11-16 11:44:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:52,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1234 transitions. [2022-11-16 11:44:52,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7191142191142191 [2022-11-16 11:44:52,051 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1234 transitions. [2022-11-16 11:44:52,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1234 transitions. [2022-11-16 11:44:52,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:52,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1234 transitions. [2022-11-16 11:44:52,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:52,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:52,061 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:52,061 INFO L175 Difference]: Start difference. First operand has 281 places, 303 transitions, 796 flow. Second operand 6 states and 1234 transitions. [2022-11-16 11:44:52,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 394 transitions, 1482 flow [2022-11-16 11:44:52,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 394 transitions, 1482 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:44:52,076 INFO L231 Difference]: Finished difference. Result has 285 places, 302 transitions, 804 flow [2022-11-16 11:44:52,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=285, PETRI_TRANSITIONS=302} [2022-11-16 11:44:52,078 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, -4 predicate places. [2022-11-16 11:44:52,079 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 302 transitions, 804 flow [2022-11-16 11:44:52,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:52,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:52,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:52,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:44:52,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash 449131661, now seen corresponding path program 1 times [2022-11-16 11:44:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:52,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461252515] [2022-11-16 11:44:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:52,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:52,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461252515] [2022-11-16 11:44:52,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461252515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:52,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:52,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798813061] [2022-11-16 11:44:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:52,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:52,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:52,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:52,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 286 [2022-11-16 11:44:52,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 302 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:52,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:52,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 286 [2022-11-16 11:44:52,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:54,599 INFO L130 PetriNetUnfolder]: 1814/5666 cut-off events. [2022-11-16 11:44:54,600 INFO L131 PetriNetUnfolder]: For 1342/1346 co-relation queries the response was YES. [2022-11-16 11:44:54,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10889 conditions, 5666 events. 1814/5666 cut-off events. For 1342/1346 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43829 event pairs, 351 based on Foata normal form. 0/5218 useless extension candidates. Maximal degree in co-relation 10799. Up to 2162 conditions per place. [2022-11-16 11:44:54,636 INFO L137 encePairwiseOnDemand]: 265/286 looper letters, 253 selfloop transitions, 71 changer transitions 0/481 dead transitions. [2022-11-16 11:44:54,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 481 transitions, 2066 flow [2022-11-16 11:44:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1269 transitions. [2022-11-16 11:44:54,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7395104895104895 [2022-11-16 11:44:54,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1269 transitions. [2022-11-16 11:44:54,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1269 transitions. [2022-11-16 11:44:54,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:54,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1269 transitions. [2022-11-16 11:44:54,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:54,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:54,651 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:54,651 INFO L175 Difference]: Start difference. First operand has 285 places, 302 transitions, 804 flow. Second operand 6 states and 1269 transitions. [2022-11-16 11:44:54,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 481 transitions, 2066 flow [2022-11-16 11:44:54,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 481 transitions, 2016 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:44:54,664 INFO L231 Difference]: Finished difference. Result has 290 places, 371 transitions, 1452 flow [2022-11-16 11:44:54,665 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1452, PETRI_PLACES=290, PETRI_TRANSITIONS=371} [2022-11-16 11:44:54,666 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 1 predicate places. [2022-11-16 11:44:54,666 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 371 transitions, 1452 flow [2022-11-16 11:44:54,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:54,668 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:54,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:54,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:44:54,668 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash 544060034, now seen corresponding path program 1 times [2022-11-16 11:44:54,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:54,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929069833] [2022-11-16 11:44:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:54,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:55,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:55,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929069833] [2022-11-16 11:44:55,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929069833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:55,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:55,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:55,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210709259] [2022-11-16 11:44:55,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:55,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:55,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:55,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:55,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:55,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-16 11:44:55,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 371 transitions, 1452 flow. Second operand has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:55,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:55,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-16 11:44:55,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:57,204 INFO L130 PetriNetUnfolder]: 1933/6129 cut-off events. [2022-11-16 11:44:57,205 INFO L131 PetriNetUnfolder]: For 3619/3666 co-relation queries the response was YES. [2022-11-16 11:44:57,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14053 conditions, 6129 events. 1933/6129 cut-off events. For 3619/3666 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 48035 event pairs, 1000 based on Foata normal form. 0/5716 useless extension candidates. Maximal degree in co-relation 13962. Up to 3830 conditions per place. [2022-11-16 11:44:57,245 INFO L137 encePairwiseOnDemand]: 263/286 looper letters, 240 selfloop transitions, 89 changer transitions 0/490 dead transitions. [2022-11-16 11:44:57,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 490 transitions, 2630 flow [2022-11-16 11:44:57,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:44:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1233 transitions. [2022-11-16 11:44:57,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7185314685314685 [2022-11-16 11:44:57,249 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1233 transitions. [2022-11-16 11:44:57,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1233 transitions. [2022-11-16 11:44:57,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:57,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1233 transitions. [2022-11-16 11:44:57,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,257 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,258 INFO L175 Difference]: Start difference. First operand has 290 places, 371 transitions, 1452 flow. Second operand 6 states and 1233 transitions. [2022-11-16 11:44:57,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 490 transitions, 2630 flow [2022-11-16 11:44:57,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 490 transitions, 2630 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:44:57,279 INFO L231 Difference]: Finished difference. Result has 300 places, 455 transitions, 2254 flow [2022-11-16 11:44:57,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2254, PETRI_PLACES=300, PETRI_TRANSITIONS=455} [2022-11-16 11:44:57,282 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 11 predicate places. [2022-11-16 11:44:57,282 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 455 transitions, 2254 flow [2022-11-16 11:44:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:57,283 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:57,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:44:57,283 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:57,284 INFO L85 PathProgramCache]: Analyzing trace with hash 858847841, now seen corresponding path program 1 times [2022-11-16 11:44:57,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:57,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923235535] [2022-11-16 11:44:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:57,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:57,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:57,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923235535] [2022-11-16 11:44:57,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923235535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:57,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:57,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:44:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891843205] [2022-11-16 11:44:57,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:57,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:44:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:57,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:44:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:44:57,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 286 [2022-11-16 11:44:57,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 455 transitions, 2254 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:57,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 286 [2022-11-16 11:44:57,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:44:57,944 INFO L130 PetriNetUnfolder]: 274/1903 cut-off events. [2022-11-16 11:44:57,945 INFO L131 PetriNetUnfolder]: For 1031/1094 co-relation queries the response was YES. [2022-11-16 11:44:57,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1903 events. 274/1903 cut-off events. For 1031/1094 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13034 event pairs, 25 based on Foata normal form. 4/1827 useless extension candidates. Maximal degree in co-relation 3798. Up to 272 conditions per place. [2022-11-16 11:44:57,958 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 15 selfloop transitions, 6 changer transitions 0/395 dead transitions. [2022-11-16 11:44:57,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 395 transitions, 1732 flow [2022-11-16 11:44:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:44:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:44:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2022-11-16 11:44:57,961 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9743589743589743 [2022-11-16 11:44:57,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2022-11-16 11:44:57,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2022-11-16 11:44:57,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:44:57,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2022-11-16 11:44:57,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,966 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,966 INFO L175 Difference]: Start difference. First operand has 300 places, 455 transitions, 2254 flow. Second operand 3 states and 836 transitions. [2022-11-16 11:44:57,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 395 transitions, 1732 flow [2022-11-16 11:44:57,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 395 transitions, 1644 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-16 11:44:57,984 INFO L231 Difference]: Finished difference. Result has 303 places, 393 transitions, 1624 flow [2022-11-16 11:44:57,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1590, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1624, PETRI_PLACES=303, PETRI_TRANSITIONS=393} [2022-11-16 11:44:57,985 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 14 predicate places. [2022-11-16 11:44:57,986 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 393 transitions, 1624 flow [2022-11-16 11:44:57,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:57,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:44:57,987 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:57,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:44:57,987 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:44:57,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash 654097040, now seen corresponding path program 1 times [2022-11-16 11:44:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:57,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010903783] [2022-11-16 11:44:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:44:58,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:58,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010903783] [2022-11-16 11:44:58,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010903783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:58,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:58,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:58,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370723065] [2022-11-16 11:44:58,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:58,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:44:58,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:44:58,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:58,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-16 11:44:58,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 393 transitions, 1624 flow. Second operand has 6 states, 6 states have (on average 181.16666666666666) internal successors, (1087), 6 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:44:58,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:44:58,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-16 11:44:58,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:00,474 INFO L130 PetriNetUnfolder]: 1230/4300 cut-off events. [2022-11-16 11:45:00,474 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-16 11:45:00,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10867 conditions, 4300 events. 1230/4300 cut-off events. For 3311/3340 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33119 event pairs, 209 based on Foata normal form. 0/4126 useless extension candidates. Maximal degree in co-relation 10768. Up to 1159 conditions per place. [2022-11-16 11:45:00,509 INFO L137 encePairwiseOnDemand]: 267/286 looper letters, 376 selfloop transitions, 124 changer transitions 4/669 dead transitions. [2022-11-16 11:45:00,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 669 transitions, 4198 flow [2022-11-16 11:45:00,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:45:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:45:00,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1321 transitions. [2022-11-16 11:45:00,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7698135198135199 [2022-11-16 11:45:00,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1321 transitions. [2022-11-16 11:45:00,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1321 transitions. [2022-11-16 11:45:00,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:00,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1321 transitions. [2022-11-16 11:45:00,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:00,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:00,522 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:00,522 INFO L175 Difference]: Start difference. First operand has 303 places, 393 transitions, 1624 flow. Second operand 6 states and 1321 transitions. [2022-11-16 11:45:00,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 669 transitions, 4198 flow [2022-11-16 11:45:00,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 669 transitions, 4192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:45:00,553 INFO L231 Difference]: Finished difference. Result has 311 places, 495 transitions, 3000 flow [2022-11-16 11:45:00,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1616, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3000, PETRI_PLACES=311, PETRI_TRANSITIONS=495} [2022-11-16 11:45:00,554 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 22 predicate places. [2022-11-16 11:45:00,554 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 495 transitions, 3000 flow [2022-11-16 11:45:00,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.16666666666666) internal successors, (1087), 6 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:00,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:00,555 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:00,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:45:00,556 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:00,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash 859331813, now seen corresponding path program 1 times [2022-11-16 11:45:00,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:00,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100092205] [2022-11-16 11:45:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:01,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:01,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100092205] [2022-11-16 11:45:01,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100092205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:01,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:01,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:01,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156219641] [2022-11-16 11:45:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:01,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:01,283 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 286 [2022-11-16 11:45:01,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 495 transitions, 3000 flow. Second operand has 6 states, 6 states have (on average 184.33333333333334) internal successors, (1106), 6 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:01,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:01,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 286 [2022-11-16 11:45:01,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:02,837 INFO L130 PetriNetUnfolder]: 1281/4364 cut-off events. [2022-11-16 11:45:02,837 INFO L131 PetriNetUnfolder]: For 6065/6105 co-relation queries the response was YES. [2022-11-16 11:45:02,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12642 conditions, 4364 events. 1281/4364 cut-off events. For 6065/6105 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33350 event pairs, 469 based on Foata normal form. 0/4236 useless extension candidates. Maximal degree in co-relation 12540. Up to 2346 conditions per place. [2022-11-16 11:45:02,866 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 410 selfloop transitions, 17 changer transitions 0/594 dead transitions. [2022-11-16 11:45:02,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 594 transitions, 4444 flow [2022-11-16 11:45:02,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:45:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:45:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2022-11-16 11:45:02,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7132867132867133 [2022-11-16 11:45:02,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1224 transitions. [2022-11-16 11:45:02,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1224 transitions. [2022-11-16 11:45:02,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:02,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1224 transitions. [2022-11-16 11:45:02,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:02,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:02,887 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:02,887 INFO L175 Difference]: Start difference. First operand has 311 places, 495 transitions, 3000 flow. Second operand 6 states and 1224 transitions. [2022-11-16 11:45:02,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 594 transitions, 4444 flow [2022-11-16 11:45:02,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 594 transitions, 4426 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:45:02,928 INFO L231 Difference]: Finished difference. Result has 315 places, 494 transitions, 3014 flow [2022-11-16 11:45:02,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2980, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3014, PETRI_PLACES=315, PETRI_TRANSITIONS=494} [2022-11-16 11:45:02,931 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 26 predicate places. [2022-11-16 11:45:02,931 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 494 transitions, 3014 flow [2022-11-16 11:45:02,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.33333333333334) internal successors, (1106), 6 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:02,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:02,932 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:45:02,932 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:02,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash 64130171, now seen corresponding path program 1 times [2022-11-16 11:45:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:02,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543588687] [2022-11-16 11:45:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:05,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:05,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543588687] [2022-11-16 11:45:05,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543588687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:05,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:05,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:45:05,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432744291] [2022-11-16 11:45:05,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:05,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:45:05,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:45:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:45:05,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-16 11:45:05,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 494 transitions, 3014 flow. Second operand has 19 states, 19 states have (on average 129.89473684210526) internal successors, (2468), 19 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:05,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:05,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-16 11:45:05,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:08,490 INFO L130 PetriNetUnfolder]: 1779/5473 cut-off events. [2022-11-16 11:45:08,490 INFO L131 PetriNetUnfolder]: For 6985/6985 co-relation queries the response was YES. [2022-11-16 11:45:08,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15889 conditions, 5473 events. 1779/5473 cut-off events. For 6985/6985 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 42507 event pairs, 262 based on Foata normal form. 15/5354 useless extension candidates. Maximal degree in co-relation 15765. Up to 2235 conditions per place. [2022-11-16 11:45:08,529 INFO L137 encePairwiseOnDemand]: 257/286 looper letters, 524 selfloop transitions, 108 changer transitions 1/749 dead transitions. [2022-11-16 11:45:08,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 749 transitions, 5696 flow [2022-11-16 11:45:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-16 11:45:08,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-16 11:45:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4968 transitions. [2022-11-16 11:45:08,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4694764694764695 [2022-11-16 11:45:08,551 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 4968 transitions. [2022-11-16 11:45:08,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 4968 transitions. [2022-11-16 11:45:08,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:08,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 4968 transitions. [2022-11-16 11:45:08,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 134.27027027027026) internal successors, (4968), 37 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:08,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 286.0) internal successors, (10868), 38 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:08,592 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 286.0) internal successors, (10868), 38 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:08,593 INFO L175 Difference]: Start difference. First operand has 315 places, 494 transitions, 3014 flow. Second operand 37 states and 4968 transitions. [2022-11-16 11:45:08,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 749 transitions, 5696 flow [2022-11-16 11:45:08,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 749 transitions, 5636 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:45:08,640 INFO L231 Difference]: Finished difference. Result has 352 places, 533 transitions, 3539 flow [2022-11-16 11:45:08,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2980, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=3539, PETRI_PLACES=352, PETRI_TRANSITIONS=533} [2022-11-16 11:45:08,641 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 63 predicate places. [2022-11-16 11:45:08,642 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 533 transitions, 3539 flow [2022-11-16 11:45:08,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 129.89473684210526) internal successors, (2468), 19 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:08,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:08,643 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:08,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:45:08,644 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:08,644 INFO L85 PathProgramCache]: Analyzing trace with hash 247325162, now seen corresponding path program 1 times [2022-11-16 11:45:08,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:08,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213242334] [2022-11-16 11:45:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:08,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:10,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213242334] [2022-11-16 11:45:10,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213242334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:10,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:10,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:45:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313325258] [2022-11-16 11:45:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:10,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:45:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:45:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:45:10,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:45:10,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 533 transitions, 3539 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:10,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:10,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:45:10,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:15,063 INFO L130 PetriNetUnfolder]: 2166/6677 cut-off events. [2022-11-16 11:45:15,063 INFO L131 PetriNetUnfolder]: For 12053/12061 co-relation queries the response was YES. [2022-11-16 11:45:15,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21085 conditions, 6677 events. 2166/6677 cut-off events. For 12053/12061 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 54986 event pairs, 259 based on Foata normal form. 18/6553 useless extension candidates. Maximal degree in co-relation 20948. Up to 1602 conditions per place. [2022-11-16 11:45:15,119 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 682 selfloop transitions, 147 changer transitions 3/950 dead transitions. [2022-11-16 11:45:15,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 950 transitions, 7940 flow [2022-11-16 11:45:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:45:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:45:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4233 transitions. [2022-11-16 11:45:15,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49335664335664337 [2022-11-16 11:45:15,130 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4233 transitions. [2022-11-16 11:45:15,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4233 transitions. [2022-11-16 11:45:15,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:15,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4233 transitions. [2022-11-16 11:45:15,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 141.1) internal successors, (4233), 30 states have internal predecessors, (4233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:15,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 286.0) internal successors, (8866), 31 states have internal predecessors, (8866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:15,159 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 286.0) internal successors, (8866), 31 states have internal predecessors, (8866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:15,160 INFO L175 Difference]: Start difference. First operand has 352 places, 533 transitions, 3539 flow. Second operand 30 states and 4233 transitions. [2022-11-16 11:45:15,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 950 transitions, 7940 flow [2022-11-16 11:45:15,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 950 transitions, 7883 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-11-16 11:45:15,249 INFO L231 Difference]: Finished difference. Result has 380 places, 616 transitions, 4910 flow [2022-11-16 11:45:15,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3493, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4910, PETRI_PLACES=380, PETRI_TRANSITIONS=616} [2022-11-16 11:45:15,250 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 91 predicate places. [2022-11-16 11:45:15,251 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 616 transitions, 4910 flow [2022-11-16 11:45:15,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:15,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:15,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:15,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:45:15,252 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1463845344, now seen corresponding path program 2 times [2022-11-16 11:45:15,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:15,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653116585] [2022-11-16 11:45:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:15,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:17,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:17,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653116585] [2022-11-16 11:45:17,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653116585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:17,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:17,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 11:45:17,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259125658] [2022-11-16 11:45:17,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:17,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:45:17,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:17,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:45:17,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:45:17,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-16 11:45:17,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 616 transitions, 4910 flow. Second operand has 22 states, 22 states have (on average 130.0909090909091) internal successors, (2862), 22 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:17,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:17,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-16 11:45:17,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:21,896 INFO L130 PetriNetUnfolder]: 2336/7118 cut-off events. [2022-11-16 11:45:21,896 INFO L131 PetriNetUnfolder]: For 17137/17150 co-relation queries the response was YES. [2022-11-16 11:45:21,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24332 conditions, 7118 events. 2336/7118 cut-off events. For 17137/17150 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 58726 event pairs, 204 based on Foata normal form. 28/7003 useless extension candidates. Maximal degree in co-relation 24182. Up to 1290 conditions per place. [2022-11-16 11:45:21,983 INFO L137 encePairwiseOnDemand]: 253/286 looper letters, 691 selfloop transitions, 201 changer transitions 4/1013 dead transitions. [2022-11-16 11:45:21,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1013 transitions, 9466 flow [2022-11-16 11:45:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-16 11:45:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-16 11:45:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 5203 transitions. [2022-11-16 11:45:21,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47874493927125505 [2022-11-16 11:45:21,995 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 5203 transitions. [2022-11-16 11:45:21,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 5203 transitions. [2022-11-16 11:45:21,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:21,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 5203 transitions. [2022-11-16 11:45:22,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 136.92105263157896) internal successors, (5203), 38 states have internal predecessors, (5203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:22,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 286.0) internal successors, (11154), 39 states have internal predecessors, (11154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:22,030 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 286.0) internal successors, (11154), 39 states have internal predecessors, (11154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:22,030 INFO L175 Difference]: Start difference. First operand has 380 places, 616 transitions, 4910 flow. Second operand 38 states and 5203 transitions. [2022-11-16 11:45:22,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1013 transitions, 9466 flow [2022-11-16 11:45:22,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1013 transitions, 9411 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-11-16 11:45:22,185 INFO L231 Difference]: Finished difference. Result has 420 places, 693 transitions, 6208 flow [2022-11-16 11:45:22,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4869, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=6208, PETRI_PLACES=420, PETRI_TRANSITIONS=693} [2022-11-16 11:45:22,187 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 131 predicate places. [2022-11-16 11:45:22,187 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 693 transitions, 6208 flow [2022-11-16 11:45:22,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 130.0909090909091) internal successors, (2862), 22 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:22,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:22,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:45:22,189 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1830050872, now seen corresponding path program 3 times [2022-11-16 11:45:22,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:22,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354972047] [2022-11-16 11:45:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:24,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:24,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354972047] [2022-11-16 11:45:24,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354972047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:24,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:24,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:45:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370841964] [2022-11-16 11:45:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:24,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:45:24,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:45:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:45:24,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:45:24,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 693 transitions, 6208 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:24,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:24,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:45:24,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:29,647 INFO L130 PetriNetUnfolder]: 2793/8516 cut-off events. [2022-11-16 11:45:29,647 INFO L131 PetriNetUnfolder]: For 27273/27283 co-relation queries the response was YES. [2022-11-16 11:45:29,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31637 conditions, 8516 events. 2793/8516 cut-off events. For 27273/27283 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 74093 event pairs, 418 based on Foata normal form. 25/8367 useless extension candidates. Maximal degree in co-relation 31469. Up to 1784 conditions per place. [2022-11-16 11:45:29,725 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 784 selfloop transitions, 213 changer transitions 3/1119 dead transitions. [2022-11-16 11:45:29,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1119 transitions, 11349 flow [2022-11-16 11:45:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 11:45:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-16 11:45:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4505 transitions. [2022-11-16 11:45:29,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49224213286713286 [2022-11-16 11:45:29,734 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4505 transitions. [2022-11-16 11:45:29,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4505 transitions. [2022-11-16 11:45:29,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:29,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4505 transitions. [2022-11-16 11:45:29,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 140.78125) internal successors, (4505), 32 states have internal predecessors, (4505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:29,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 286.0) internal successors, (9438), 33 states have internal predecessors, (9438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:29,760 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 286.0) internal successors, (9438), 33 states have internal predecessors, (9438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:29,760 INFO L175 Difference]: Start difference. First operand has 420 places, 693 transitions, 6208 flow. Second operand 32 states and 4505 transitions. [2022-11-16 11:45:29,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1119 transitions, 11349 flow [2022-11-16 11:45:29,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1119 transitions, 11195 flow, removed 17 selfloop flow, removed 17 redundant places. [2022-11-16 11:45:29,945 INFO L231 Difference]: Finished difference. Result has 442 places, 763 transitions, 7865 flow [2022-11-16 11:45:29,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6088, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=7865, PETRI_PLACES=442, PETRI_TRANSITIONS=763} [2022-11-16 11:45:29,946 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 153 predicate places. [2022-11-16 11:45:29,946 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 763 transitions, 7865 flow [2022-11-16 11:45:29,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:29,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:29,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:29,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:45:29,948 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1242773768, now seen corresponding path program 4 times [2022-11-16 11:45:29,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:29,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544884322] [2022-11-16 11:45:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:29,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:31,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:31,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544884322] [2022-11-16 11:45:31,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544884322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:31,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:31,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:45:31,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499889713] [2022-11-16 11:45:31,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:31,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:45:31,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:31,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:45:31,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:45:31,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:45:31,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 763 transitions, 7865 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:31,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:31,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:45:31,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:37,953 INFO L130 PetriNetUnfolder]: 3296/9971 cut-off events. [2022-11-16 11:45:37,953 INFO L131 PetriNetUnfolder]: For 42875/42889 co-relation queries the response was YES. [2022-11-16 11:45:38,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38993 conditions, 9971 events. 3296/9971 cut-off events. For 42875/42889 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 89887 event pairs, 434 based on Foata normal form. 29/9817 useless extension candidates. Maximal degree in co-relation 38815. Up to 1838 conditions per place. [2022-11-16 11:45:38,066 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 841 selfloop transitions, 275 changer transitions 3/1238 dead transitions. [2022-11-16 11:45:38,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1238 transitions, 14136 flow [2022-11-16 11:45:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 11:45:38,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 11:45:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4778 transitions. [2022-11-16 11:45:38,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4913615795968737 [2022-11-16 11:45:38,079 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4778 transitions. [2022-11-16 11:45:38,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4778 transitions. [2022-11-16 11:45:38,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:38,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4778 transitions. [2022-11-16 11:45:38,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 140.52941176470588) internal successors, (4778), 34 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:38,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:38,108 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:38,108 INFO L175 Difference]: Start difference. First operand has 442 places, 763 transitions, 7865 flow. Second operand 34 states and 4778 transitions. [2022-11-16 11:45:38,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 1238 transitions, 14136 flow [2022-11-16 11:45:38,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1238 transitions, 14030 flow, removed 16 selfloop flow, removed 17 redundant places. [2022-11-16 11:45:38,408 INFO L231 Difference]: Finished difference. Result has 471 places, 853 transitions, 10300 flow [2022-11-16 11:45:38,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=7777, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=10300, PETRI_PLACES=471, PETRI_TRANSITIONS=853} [2022-11-16 11:45:38,409 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 182 predicate places. [2022-11-16 11:45:38,409 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 853 transitions, 10300 flow [2022-11-16 11:45:38,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:38,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:38,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:45:38,410 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:38,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1207492736, now seen corresponding path program 5 times [2022-11-16 11:45:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153544171] [2022-11-16 11:45:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153544171] [2022-11-16 11:45:40,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153544171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:40,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:40,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:45:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946789596] [2022-11-16 11:45:40,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:40,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:45:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:40,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:45:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:45:40,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:45:40,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 853 transitions, 10300 flow. Second operand has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:40,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:40,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:45:40,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:47,242 INFO L130 PetriNetUnfolder]: 3725/11272 cut-off events. [2022-11-16 11:45:47,243 INFO L131 PetriNetUnfolder]: For 63428/63444 co-relation queries the response was YES. [2022-11-16 11:45:47,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46652 conditions, 11272 events. 3725/11272 cut-off events. For 63428/63444 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 105016 event pairs, 477 based on Foata normal form. 31/11106 useless extension candidates. Maximal degree in co-relation 46458. Up to 2268 conditions per place. [2022-11-16 11:45:47,505 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 853 selfloop transitions, 319 changer transitions 3/1294 dead transitions. [2022-11-16 11:45:47,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 1294 transitions, 16447 flow [2022-11-16 11:45:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 11:45:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-16 11:45:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 4642 transitions. [2022-11-16 11:45:47,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49184149184149184 [2022-11-16 11:45:47,512 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 4642 transitions. [2022-11-16 11:45:47,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 4642 transitions. [2022-11-16 11:45:47,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:47,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 4642 transitions. [2022-11-16 11:45:47,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 140.66666666666666) internal successors, (4642), 33 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:47,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 286.0) internal successors, (9724), 34 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:47,532 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 286.0) internal successors, (9724), 34 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:47,532 INFO L175 Difference]: Start difference. First operand has 471 places, 853 transitions, 10300 flow. Second operand 33 states and 4642 transitions. [2022-11-16 11:45:47,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 1294 transitions, 16447 flow [2022-11-16 11:45:47,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 1294 transitions, 16305 flow, removed 49 selfloop flow, removed 14 redundant places. [2022-11-16 11:45:47,991 INFO L231 Difference]: Finished difference. Result has 500 places, 921 transitions, 12740 flow [2022-11-16 11:45:47,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=12740, PETRI_PLACES=500, PETRI_TRANSITIONS=921} [2022-11-16 11:45:47,992 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 211 predicate places. [2022-11-16 11:45:47,993 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 921 transitions, 12740 flow [2022-11-16 11:45:47,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.55) internal successors, (2631), 20 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:47,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:47,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:47,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:45:47,993 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:47,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1838917866, now seen corresponding path program 1 times [2022-11-16 11:45:47,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:47,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520493971] [2022-11-16 11:45:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:47,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:48,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:48,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520493971] [2022-11-16 11:45:48,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520493971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:48,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:48,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:48,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897019998] [2022-11-16 11:45:48,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:48,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:48,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:48,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:48,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:48,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 286 [2022-11-16 11:45:48,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 921 transitions, 12740 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:48,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:48,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 286 [2022-11-16 11:45:48,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:53,061 INFO L130 PetriNetUnfolder]: 2988/10019 cut-off events. [2022-11-16 11:45:53,061 INFO L131 PetriNetUnfolder]: For 68066/68344 co-relation queries the response was YES. [2022-11-16 11:45:53,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42865 conditions, 10019 events. 2988/10019 cut-off events. For 68066/68344 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 95386 event pairs, 1041 based on Foata normal form. 110/9981 useless extension candidates. Maximal degree in co-relation 42678. Up to 5775 conditions per place. [2022-11-16 11:45:53,333 INFO L137 encePairwiseOnDemand]: 263/286 looper letters, 590 selfloop transitions, 97 changer transitions 106/1055 dead transitions. [2022-11-16 11:45:53,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1055 transitions, 15494 flow [2022-11-16 11:45:53,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:45:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:45:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1231 transitions. [2022-11-16 11:45:53,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7173659673659674 [2022-11-16 11:45:53,339 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1231 transitions. [2022-11-16 11:45:53,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1231 transitions. [2022-11-16 11:45:53,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:53,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1231 transitions. [2022-11-16 11:45:53,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.16666666666666) internal successors, (1231), 6 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:53,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:53,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:53,346 INFO L175 Difference]: Start difference. First operand has 500 places, 921 transitions, 12740 flow. Second operand 6 states and 1231 transitions. [2022-11-16 11:45:53,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1055 transitions, 15494 flow [2022-11-16 11:45:53,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 1055 transitions, 15363 flow, removed 40 selfloop flow, removed 15 redundant places. [2022-11-16 11:45:53,821 INFO L231 Difference]: Finished difference. Result has 495 places, 916 transitions, 12288 flow [2022-11-16 11:45:53,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12609, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=872, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=12288, PETRI_PLACES=495, PETRI_TRANSITIONS=916} [2022-11-16 11:45:53,822 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 206 predicate places. [2022-11-16 11:45:53,822 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 916 transitions, 12288 flow [2022-11-16 11:45:53,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:53,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:53,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:53,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:45:53,823 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:45:53,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash -887072035, now seen corresponding path program 1 times [2022-11-16 11:45:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:53,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161354411] [2022-11-16 11:45:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:53,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:55,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:55,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161354411] [2022-11-16 11:45:55,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161354411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:55,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:55,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:45:55,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131748394] [2022-11-16 11:45:55,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:55,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:45:55,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:55,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:45:55,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:45:55,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:45:55,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 916 transitions, 12288 flow. Second operand has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:45:55,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:55,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:45:55,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:02,667 INFO L130 PetriNetUnfolder]: 3658/10904 cut-off events. [2022-11-16 11:46:02,667 INFO L131 PetriNetUnfolder]: For 84339/84344 co-relation queries the response was YES. [2022-11-16 11:46:02,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50079 conditions, 10904 events. 3658/10904 cut-off events. For 84339/84344 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 99147 event pairs, 492 based on Foata normal form. 10/10832 useless extension candidates. Maximal degree in co-relation 49872. Up to 2252 conditions per place. [2022-11-16 11:46:02,845 INFO L137 encePairwiseOnDemand]: 256/286 looper letters, 772 selfloop transitions, 250 changer transitions 29/1170 dead transitions. [2022-11-16 11:46:02,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1170 transitions, 16390 flow [2022-11-16 11:46:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 11:46:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-16 11:46:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 4677 transitions. [2022-11-16 11:46:02,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4809749074454957 [2022-11-16 11:46:02,853 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 4677 transitions. [2022-11-16 11:46:02,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 4677 transitions. [2022-11-16 11:46:02,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:02,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 4677 transitions. [2022-11-16 11:46:02,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 137.55882352941177) internal successors, (4677), 34 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:02,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:02,878 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:02,878 INFO L175 Difference]: Start difference. First operand has 495 places, 916 transitions, 12288 flow. Second operand 34 states and 4677 transitions. [2022-11-16 11:46:02,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 1170 transitions, 16390 flow [2022-11-16 11:46:03,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1170 transitions, 15976 flow, removed 139 selfloop flow, removed 11 redundant places. [2022-11-16 11:46:03,505 INFO L231 Difference]: Finished difference. Result has 496 places, 925 transitions, 12848 flow [2022-11-16 11:46:03,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11914, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=916, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=12848, PETRI_PLACES=496, PETRI_TRANSITIONS=925} [2022-11-16 11:46:03,506 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 207 predicate places. [2022-11-16 11:46:03,506 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 925 transitions, 12848 flow [2022-11-16 11:46:03,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:03,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:03,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:46:03,507 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:46:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash -123769103, now seen corresponding path program 2 times [2022-11-16 11:46:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:03,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075763103] [2022-11-16 11:46:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:46:05,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:05,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075763103] [2022-11-16 11:46:05,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075763103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:05,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:05,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 11:46:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597606018] [2022-11-16 11:46:05,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:05,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:46:05,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:05,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:46:05,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:46:05,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-16 11:46:05,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 925 transitions, 12848 flow. Second operand has 22 states, 22 states have (on average 130.3181818181818) internal successors, (2867), 22 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:05,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:05,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-16 11:46:05,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:12,741 INFO L130 PetriNetUnfolder]: 3718/11009 cut-off events. [2022-11-16 11:46:12,741 INFO L131 PetriNetUnfolder]: For 97085/97090 co-relation queries the response was YES. [2022-11-16 11:46:12,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51838 conditions, 11009 events. 3718/11009 cut-off events. For 97085/97090 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 100041 event pairs, 447 based on Foata normal form. 10/10950 useless extension candidates. Maximal degree in co-relation 51630. Up to 1999 conditions per place. [2022-11-16 11:46:12,892 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 885 selfloop transitions, 263 changer transitions 31/1296 dead transitions. [2022-11-16 11:46:12,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 1296 transitions, 18813 flow [2022-11-16 11:46:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-16 11:46:12,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-11-16 11:46:12,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4928 transitions. [2022-11-16 11:46:12,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47863247863247865 [2022-11-16 11:46:12,899 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4928 transitions. [2022-11-16 11:46:12,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4928 transitions. [2022-11-16 11:46:12,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:12,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4928 transitions. [2022-11-16 11:46:12,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 136.88888888888889) internal successors, (4928), 36 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:12,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 286.0) internal successors, (10582), 37 states have internal predecessors, (10582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:12,920 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 286.0) internal successors, (10582), 37 states have internal predecessors, (10582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:12,920 INFO L175 Difference]: Start difference. First operand has 496 places, 925 transitions, 12848 flow. Second operand 36 states and 4928 transitions. [2022-11-16 11:46:12,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 1296 transitions, 18813 flow [2022-11-16 11:46:13,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 1296 transitions, 18480 flow, removed 12 selfloop flow, removed 31 redundant places. [2022-11-16 11:46:13,497 INFO L231 Difference]: Finished difference. Result has 504 places, 937 transitions, 13466 flow [2022-11-16 11:46:13,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12515, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=13466, PETRI_PLACES=504, PETRI_TRANSITIONS=937} [2022-11-16 11:46:13,499 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 215 predicate places. [2022-11-16 11:46:13,499 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 937 transitions, 13466 flow [2022-11-16 11:46:13,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 130.3181818181818) internal successors, (2867), 22 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:13,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:13,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:46:13,500 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:46:13,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash -173439519, now seen corresponding path program 3 times [2022-11-16 11:46:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:13,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454039714] [2022-11-16 11:46:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:13,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:46:17,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:17,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454039714] [2022-11-16 11:46:17,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454039714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:17,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:17,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 11:46:17,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975725799] [2022-11-16 11:46:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:17,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-16 11:46:17,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:17,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-16 11:46:17,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:46:17,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-16 11:46:17,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 937 transitions, 13466 flow. Second operand has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:17,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:17,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-16 11:46:17,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:24,819 INFO L130 PetriNetUnfolder]: 3700/10877 cut-off events. [2022-11-16 11:46:24,820 INFO L131 PetriNetUnfolder]: For 104545/104549 co-relation queries the response was YES. [2022-11-16 11:46:24,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53170 conditions, 10877 events. 3700/10877 cut-off events. For 104545/104549 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 98362 event pairs, 647 based on Foata normal form. 9/10775 useless extension candidates. Maximal degree in co-relation 52958. Up to 2185 conditions per place. [2022-11-16 11:46:24,974 INFO L137 encePairwiseOnDemand]: 252/286 looper letters, 870 selfloop transitions, 265 changer transitions 29/1283 dead transitions. [2022-11-16 11:46:24,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1283 transitions, 18729 flow [2022-11-16 11:46:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 11:46:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-16 11:46:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 4334 transitions. [2022-11-16 11:46:24,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48883374689826303 [2022-11-16 11:46:24,981 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 4334 transitions. [2022-11-16 11:46:24,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 4334 transitions. [2022-11-16 11:46:24,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:24,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 4334 transitions. [2022-11-16 11:46:24,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 139.80645161290323) internal successors, (4334), 31 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:24,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 286.0) internal successors, (9152), 32 states have internal predecessors, (9152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:24,997 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 286.0) internal successors, (9152), 32 states have internal predecessors, (9152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:24,997 INFO L175 Difference]: Start difference. First operand has 504 places, 937 transitions, 13466 flow. Second operand 31 states and 4334 transitions. [2022-11-16 11:46:24,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1283 transitions, 18729 flow [2022-11-16 11:46:25,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 1283 transitions, 18246 flow, removed 30 selfloop flow, removed 30 redundant places. [2022-11-16 11:46:25,608 INFO L231 Difference]: Finished difference. Result has 507 places, 946 transitions, 14101 flow [2022-11-16 11:46:25,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13016, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14101, PETRI_PLACES=507, PETRI_TRANSITIONS=946} [2022-11-16 11:46:25,610 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 218 predicate places. [2022-11-16 11:46:25,610 INFO L495 AbstractCegarLoop]: Abstraction has has 507 places, 946 transitions, 14101 flow [2022-11-16 11:46:25,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 131.8) internal successors, (2636), 20 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:25,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:25,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:25,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:46:25,612 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:46:25,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:25,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1777426143, now seen corresponding path program 4 times [2022-11-16 11:46:25,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:25,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696406644] [2022-11-16 11:46:25,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:25,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:46:27,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:27,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696406644] [2022-11-16 11:46:27,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696406644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:27,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:27,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-16 11:46:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093121652] [2022-11-16 11:46:27,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:27,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 11:46:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 11:46:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:46:27,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-11-16 11:46:27,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 946 transitions, 14101 flow. Second operand has 21 states, 21 states have (on average 130.57142857142858) internal successors, (2742), 21 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:27,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:27,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-11-16 11:46:27,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:35,070 INFO L130 PetriNetUnfolder]: 3734/10985 cut-off events. [2022-11-16 11:46:35,070 INFO L131 PetriNetUnfolder]: For 115686/115691 co-relation queries the response was YES. [2022-11-16 11:46:35,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53795 conditions, 10985 events. 3734/10985 cut-off events. For 115686/115691 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 99893 event pairs, 347 based on Foata normal form. 10/10929 useless extension candidates. Maximal degree in co-relation 53578. Up to 2064 conditions per place. [2022-11-16 11:46:35,250 INFO L137 encePairwiseOnDemand]: 251/286 looper letters, 877 selfloop transitions, 342 changer transitions 37/1373 dead transitions. [2022-11-16 11:46:35,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1373 transitions, 20417 flow [2022-11-16 11:46:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-16 11:46:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-11-16 11:46:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5898 transitions. [2022-11-16 11:46:35,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47959017726459585 [2022-11-16 11:46:35,259 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 5898 transitions. [2022-11-16 11:46:35,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 5898 transitions. [2022-11-16 11:46:35,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:35,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 5898 transitions. [2022-11-16 11:46:35,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 137.1627906976744) internal successors, (5898), 43 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:35,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 286.0) internal successors, (12584), 44 states have internal predecessors, (12584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:35,285 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 286.0) internal successors, (12584), 44 states have internal predecessors, (12584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:35,285 INFO L175 Difference]: Start difference. First operand has 507 places, 946 transitions, 14101 flow. Second operand 43 states and 5898 transitions. [2022-11-16 11:46:35,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 1373 transitions, 20417 flow [2022-11-16 11:46:36,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1373 transitions, 19967 flow, removed 15 selfloop flow, removed 26 redundant places. [2022-11-16 11:46:36,482 INFO L231 Difference]: Finished difference. Result has 532 places, 982 transitions, 15120 flow [2022-11-16 11:46:36,484 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13665, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=15120, PETRI_PLACES=532, PETRI_TRANSITIONS=982} [2022-11-16 11:46:36,486 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 243 predicate places. [2022-11-16 11:46:36,486 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 982 transitions, 15120 flow [2022-11-16 11:46:36,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 130.57142857142858) internal successors, (2742), 21 states have internal predecessors, (2742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:36,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:36,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:36,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:46:36,488 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:46:36,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:36,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1136467093, now seen corresponding path program 1 times [2022-11-16 11:46:36,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:36,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980845521] [2022-11-16 11:46:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:36,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:46:38,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:38,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980845521] [2022-11-16 11:46:38,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980845521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:38,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:38,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 11:46:38,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054472372] [2022-11-16 11:46:38,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:38,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:46:38,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:46:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:46:38,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-16 11:46:38,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 982 transitions, 15120 flow. Second operand has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:38,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:38,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-16 11:46:38,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:48,703 INFO L130 PetriNetUnfolder]: 4103/12275 cut-off events. [2022-11-16 11:46:48,703 INFO L131 PetriNetUnfolder]: For 135133/135138 co-relation queries the response was YES. [2022-11-16 11:46:48,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60626 conditions, 12275 events. 4103/12275 cut-off events. For 135133/135138 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 113495 event pairs, 855 based on Foata normal form. 17/12204 useless extension candidates. Maximal degree in co-relation 60399. Up to 2091 conditions per place. [2022-11-16 11:46:48,930 INFO L137 encePairwiseOnDemand]: 256/286 looper letters, 1124 selfloop transitions, 203 changer transitions 135/1578 dead transitions. [2022-11-16 11:46:48,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 1578 transitions, 24525 flow [2022-11-16 11:46:48,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-16 11:46:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-16 11:46:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 7257 transitions. [2022-11-16 11:46:48,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4698912198912199 [2022-11-16 11:46:48,941 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 7257 transitions. [2022-11-16 11:46:48,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 7257 transitions. [2022-11-16 11:46:48,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:48,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 7257 transitions. [2022-11-16 11:46:48,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 134.38888888888889) internal successors, (7257), 54 states have internal predecessors, (7257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:48,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 286.0) internal successors, (15730), 55 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:48,969 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 286.0) internal successors, (15730), 55 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:48,970 INFO L175 Difference]: Start difference. First operand has 532 places, 982 transitions, 15120 flow. Second operand 54 states and 7257 transitions. [2022-11-16 11:46:48,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 1578 transitions, 24525 flow [2022-11-16 11:46:49,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1578 transitions, 23791 flow, removed 176 selfloop flow, removed 39 redundant places. [2022-11-16 11:46:50,015 INFO L231 Difference]: Finished difference. Result has 558 places, 1035 transitions, 15532 flow [2022-11-16 11:46:50,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14614, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=15532, PETRI_PLACES=558, PETRI_TRANSITIONS=1035} [2022-11-16 11:46:50,016 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 269 predicate places. [2022-11-16 11:46:50,016 INFO L495 AbstractCegarLoop]: Abstraction has has 558 places, 1035 transitions, 15532 flow [2022-11-16 11:46:50,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:50,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:50,017 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:50,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:46:50,017 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:46:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1200282243, now seen corresponding path program 1 times [2022-11-16 11:46:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:50,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547157225] [2022-11-16 11:46:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:46:51,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547157225] [2022-11-16 11:46:51,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547157225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:51,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:51,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-16 11:46:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538530070] [2022-11-16 11:46:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:51,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:46:51,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:46:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:46:51,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 286 [2022-11-16 11:46:51,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 1035 transitions, 15532 flow. Second operand has 22 states, 22 states have (on average 127.36363636363636) internal successors, (2802), 22 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:51,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:51,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 286 [2022-11-16 11:46:51,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:00,200 INFO L130 PetriNetUnfolder]: 4190/12171 cut-off events. [2022-11-16 11:47:00,200 INFO L131 PetriNetUnfolder]: For 127497/127504 co-relation queries the response was YES. [2022-11-16 11:47:00,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60332 conditions, 12171 events. 4190/12171 cut-off events. For 127497/127504 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 110786 event pairs, 913 based on Foata normal form. 23/12087 useless extension candidates. Maximal degree in co-relation 60110. Up to 2209 conditions per place. [2022-11-16 11:47:00,400 INFO L137 encePairwiseOnDemand]: 246/286 looper letters, 956 selfloop transitions, 257 changer transitions 80/1407 dead transitions. [2022-11-16 11:47:00,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1407 transitions, 22312 flow [2022-11-16 11:47:00,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-16 11:47:00,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-11-16 11:47:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5482 transitions. [2022-11-16 11:47:00,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4675081016544431 [2022-11-16 11:47:00,409 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5482 transitions. [2022-11-16 11:47:00,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5482 transitions. [2022-11-16 11:47:00,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:00,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5482 transitions. [2022-11-16 11:47:00,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 133.70731707317074) internal successors, (5482), 41 states have internal predecessors, (5482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:47:00,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 286.0) internal successors, (12012), 42 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:47:00,432 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 286.0) internal successors, (12012), 42 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:47:00,432 INFO L175 Difference]: Start difference. First operand has 558 places, 1035 transitions, 15532 flow. Second operand 41 states and 5482 transitions. [2022-11-16 11:47:00,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 1407 transitions, 22312 flow [2022-11-16 11:47:01,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1407 transitions, 22089 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-16 11:47:01,342 INFO L231 Difference]: Finished difference. Result has 579 places, 1057 transitions, 16434 flow [2022-11-16 11:47:01,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15355, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=16434, PETRI_PLACES=579, PETRI_TRANSITIONS=1057} [2022-11-16 11:47:01,343 INFO L288 CegarLoopForPetriNet]: 289 programPoint places, 290 predicate places. [2022-11-16 11:47:01,343 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1057 transitions, 16434 flow [2022-11-16 11:47:01,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 127.36363636363636) internal successors, (2802), 22 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:47:01,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:01,344 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:01,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:47:01,345 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 11:47:01,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1818229357, now seen corresponding path program 2 times [2022-11-16 11:47:01,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989816228] [2022-11-16 11:47:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:03,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:03,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989816228] [2022-11-16 11:47:03,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989816228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:03,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:03,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 11:47:03,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707436951] [2022-11-16 11:47:03,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:03,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:47:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:03,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:47:03,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:47:03,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 286 [2022-11-16 11:47:03,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1057 transitions, 16434 flow. Second operand has 23 states, 23 states have (on average 129.08695652173913) internal successors, (2969), 23 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:47:03,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:03,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 286 [2022-11-16 11:47:03,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand