./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc --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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-5e519f3 [2022-11-02 20:10:39,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:10:39,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:10:39,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:10:39,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:10:39,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:10:39,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:10:39,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:10:39,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:10:39,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:10:39,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:10:39,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:10:39,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:10:39,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:10:39,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:10:39,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:10:39,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:10:39,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:10:39,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:10:39,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:10:39,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:10:39,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:10:39,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:10:39,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:10:39,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:10:39,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:10:39,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:10:39,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:10:39,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:10:39,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:10:39,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:10:39,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:10:39,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:10:39,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:10:39,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:10:39,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:10:39,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:10:39,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:10:39,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:10:39,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:10:39,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:10:39,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:10:40,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:10:40,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:10:40,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:10:40,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:10:40,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:10:40,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:10:40,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:10:40,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:10:40,025 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:10:40,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:10:40,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:10:40,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:10:40,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:10:40,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:10:40,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:10:40,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:10:40,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:10:40,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:10:40,029 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:10:40,030 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:10:40,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:10:40,030 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:10:40,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:10:40,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:10:40,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:10:40,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:10:40,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:10:40,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:10:40,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:10:40,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:10:40,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:10:40,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:10:40,036 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:10:40,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:10:40,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:10:40,037 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_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-02 20:10:40,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:10:40,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:10:40,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:10:40,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:10:40,401 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:10:40,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-02 20:10:40,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/data/d7211ef01/58de1fda76d54d2aab8810c80dd73988/FLAG12ed8802a [2022-11-02 20:10:41,288 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:10:41,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-02 20:10:41,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/data/d7211ef01/58de1fda76d54d2aab8810c80dd73988/FLAG12ed8802a [2022-11-02 20:10:41,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/data/d7211ef01/58de1fda76d54d2aab8810c80dd73988 [2022-11-02 20:10:41,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:10:41,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:10:41,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:41,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:10:41,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:10:41,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:41" (1/1) ... [2022-11-02 20:10:41,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b886fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:41, skipping insertion in model container [2022-11-02 20:10:41,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:41" (1/1) ... [2022-11-02 20:10:41,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:10:41,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:10:41,833 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:10:42,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-02 20:10:42,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:42,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:10:42,651 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-02 20:10:42,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-02 20:10:42,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:42,892 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:10:42,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42 WrapperNode [2022-11-02 20:10:42,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:42,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:42,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:10:42,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:10:42,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:42,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:42,999 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-02 20:10:42,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:43,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:10:43,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:10:43,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:10:43,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:10:43,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:10:43,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:10:43,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:10:43,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (1/1) ... [2022-11-02 20:10:43,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:10:43,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:43,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:43,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fdd660c-f2c4-4660-bb81-29d64dd2fba7/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:10:43,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:10:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:10:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:10:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:10:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:10:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:10:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:10:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:10:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:10:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-02 20:10:43,239 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-02 20:10:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:10:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:10:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:10:43,241 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:10:43,758 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:10:43,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:10:44,464 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:10:44,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:10:44,576 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:10:44,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:44 BoogieIcfgContainer [2022-11-02 20:10:44,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:10:44,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:10:44,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:10:44,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:10:44,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:10:41" (1/3) ... [2022-11-02 20:10:44,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5907de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:10:44, skipping insertion in model container [2022-11-02 20:10:44,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:42" (2/3) ... [2022-11-02 20:10:44,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5907de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:10:44, skipping insertion in model container [2022-11-02 20:10:44,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:44" (3/3) ... [2022-11-02 20:10:44,595 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-02 20:10:44,607 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:10:44,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:10:44,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-02 20:10:44,621 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:10:44,761 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:10:44,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 20:10:45,065 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-02 20:10:45,065 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:10:45,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 628 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-02 20:10:45,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-02 20:10:45,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-02 20:10:45,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:10:45,131 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;@3dd849be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:10:45,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-02 20:10:45,149 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-02 20:10:45,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:10:45,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:45,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:10:45,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:45,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:45,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2121246416, now seen corresponding path program 1 times [2022-11-02 20:10:45,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:45,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56084976] [2022-11-02 20:10:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:45,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:46,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:46,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:46,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56084976] [2022-11-02 20:10:46,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56084976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:46,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:46,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:46,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883879283] [2022-11-02 20:10:46,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:46,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:46,765 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 20:10:46,775 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:46,775 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:46,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 20:10:46,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:48,038 INFO L130 PetriNetUnfolder]: 766/2163 cut-off events. [2022-11-02 20:10:48,039 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-02 20:10:48,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 2163 events. 766/2163 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14157 event pairs, 765 based on Foata normal form. 36/2036 useless extension candidates. Maximal degree in co-relation 3134. Up to 1367 conditions per place. [2022-11-02 20:10:48,065 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-02 20:10:48,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-02 20:10:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-02 20:10:48,093 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-02 20:10:48,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-02 20:10:48,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-02 20:10:48,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:48,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-02 20:10:48,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:48,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:48,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:48,135 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-02 20:10:48,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-02 20:10:48,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:10:48,158 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-02 20:10:48,161 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-02 20:10:48,166 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-02 20:10:48,167 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-02 20:10:48,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:48,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:48,170 INFO L208 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] [2022-11-02 20:10:48,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:10:48,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:48,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash -140736374, now seen corresponding path program 1 times [2022-11-02 20:10:48,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:48,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977905304] [2022-11-02 20:10:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:48,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977905304] [2022-11-02 20:10:48,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977905304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:48,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:48,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657450113] [2022-11-02 20:10:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:48,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:48,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:48,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:48,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:48,956 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-02 20:10:48,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:48,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:48,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-02 20:10:48,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:49,921 INFO L130 PetriNetUnfolder]: 742/1881 cut-off events. [2022-11-02 20:10:49,922 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:10:49,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 1881 events. 742/1881 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11909 event pairs, 741 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 3161. Up to 1325 conditions per place. [2022-11-02 20:10:49,938 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-02 20:10:49,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-02 20:10:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-02 20:10:49,942 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-02 20:10:49,942 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-02 20:10:49,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-02 20:10:49,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:49,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-02 20:10:49,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:49,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:49,952 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:49,953 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-02 20:10:49,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-02 20:10:49,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:10:49,966 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-02 20:10:49,967 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-02 20:10:49,968 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-02 20:10:49,969 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-02 20:10:49,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:49,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:49,970 INFO L208 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] [2022-11-02 20:10:49,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:10:49,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:49,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:49,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1153358172, now seen corresponding path program 1 times [2022-11-02 20:10:49,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:49,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562564893] [2022-11-02 20:10:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:49,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:50,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:50,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562564893] [2022-11-02 20:10:50,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562564893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:50,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:50,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:50,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754530872] [2022-11-02 20:10:50,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:50,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:50,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:50,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:50,768 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 20:10:50,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:50,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:50,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 20:10:50,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:52,158 INFO L130 PetriNetUnfolder]: 1018/2380 cut-off events. [2022-11-02 20:10:52,158 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:10:52,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4187 conditions, 2380 events. 1018/2380 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 15571 event pairs, 819 based on Foata normal form. 0/2264 useless extension candidates. Maximal degree in co-relation 4114. Up to 1695 conditions per place. [2022-11-02 20:10:52,180 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-02 20:10:52,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-02 20:10:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 20:10:52,184 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 20:10:52,185 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 20:10:52,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 20:10:52,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:52,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 20:10:52,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,195 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-02 20:10:52,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-02 20:10:52,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:10:52,204 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-02 20:10:52,204 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-02 20:10:52,205 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-02 20:10:52,205 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-02 20:10:52,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:52,207 INFO L208 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] [2022-11-02 20:10:52,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:10:52,208 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1732561676, now seen corresponding path program 1 times [2022-11-02 20:10:52,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:52,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633715124] [2022-11-02 20:10:52,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:52,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:52,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633715124] [2022-11-02 20:10:52,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633715124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:52,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:52,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658594731] [2022-11-02 20:10:52,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:52,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:10:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:52,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:10:52,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:10:52,402 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 20:10:52,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:52,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 20:10:52,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:52,882 INFO L130 PetriNetUnfolder]: 449/1623 cut-off events. [2022-11-02 20:10:52,882 INFO L131 PetriNetUnfolder]: For 460/520 co-relation queries the response was YES. [2022-11-02 20:10:52,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 1623 events. 449/1623 cut-off events. For 460/520 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10303 event pairs, 264 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2139. Up to 606 conditions per place. [2022-11-02 20:10:52,899 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-02 20:10:52,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-02 20:10:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:52,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-02 20:10:52,905 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-02 20:10:52,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-02 20:10:52,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-02 20:10:52,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:52,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-02 20:10:52,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,915 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,916 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-02 20:10:52,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-02 20:10:52,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:10:52,927 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-02 20:10:52,928 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-02 20:10:52,929 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-02 20:10:52,929 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-02 20:10:52,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:52,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:52,930 INFO L208 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] [2022-11-02 20:10:52,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:10:52,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1253499727, now seen corresponding path program 1 times [2022-11-02 20:10:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431032234] [2022-11-02 20:10:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:53,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:53,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431032234] [2022-11-02 20:10:53,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431032234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:53,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:53,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:53,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635958235] [2022-11-02 20:10:53,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:53,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:53,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:53,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:53,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:53,619 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-02 20:10:53,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:53,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:53,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-02 20:10:53,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:54,987 INFO L130 PetriNetUnfolder]: 1147/2619 cut-off events. [2022-11-02 20:10:54,987 INFO L131 PetriNetUnfolder]: For 828/834 co-relation queries the response was YES. [2022-11-02 20:10:54,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6240 conditions, 2619 events. 1147/2619 cut-off events. For 828/834 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 16852 event pairs, 753 based on Foata normal form. 0/2522 useless extension candidates. Maximal degree in co-relation 6137. Up to 1900 conditions per place. [2022-11-02 20:10:55,016 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-02 20:10:55,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-02 20:10:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:55,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-02 20:10:55,021 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-02 20:10:55,021 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-02 20:10:55,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-02 20:10:55,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:55,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-02 20:10:55,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:55,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:55,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:55,030 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-02 20:10:55,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-02 20:10:55,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:10:55,044 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-02 20:10:55,045 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-02 20:10:55,049 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-02 20:10:55,049 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-02 20:10:55,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:55,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:55,050 INFO L208 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] [2022-11-02 20:10:55,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:10:55,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1373465184, now seen corresponding path program 1 times [2022-11-02 20:10:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:55,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491421096] [2022-11-02 20:10:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:55,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:55,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491421096] [2022-11-02 20:10:55,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491421096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:55,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:55,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:55,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411949244] [2022-11-02 20:10:55,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:55,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:55,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:55,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:55,754 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-02 20:10:55,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:55,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:55,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-02 20:10:55,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:57,236 INFO L130 PetriNetUnfolder]: 1123/2692 cut-off events. [2022-11-02 20:10:57,236 INFO L131 PetriNetUnfolder]: For 2062/2224 co-relation queries the response was YES. [2022-11-02 20:10:57,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7695 conditions, 2692 events. 1123/2692 cut-off events. For 2062/2224 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17758 event pairs, 548 based on Foata normal form. 0/2600 useless extension candidates. Maximal degree in co-relation 5643. Up to 1798 conditions per place. [2022-11-02 20:10:57,278 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 139 selfloop transitions, 22 changer transitions 0/298 dead transitions. [2022-11-02 20:10:57,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 298 transitions, 1377 flow [2022-11-02 20:10:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:57,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:57,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1012 transitions. [2022-11-02 20:10:57,283 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6828609986504723 [2022-11-02 20:10:57,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1012 transitions. [2022-11-02 20:10:57,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1012 transitions. [2022-11-02 20:10:57,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:57,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1012 transitions. [2022-11-02 20:10:57,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:57,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:57,295 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:57,295 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 1012 transitions. [2022-11-02 20:10:57,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 298 transitions, 1377 flow [2022-11-02 20:10:57,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 298 transitions, 1329 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-02 20:10:57,320 INFO L231 Difference]: Finished difference. Result has 246 places, 289 transitions, 1064 flow [2022-11-02 20:10:57,321 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=246, PETRI_TRANSITIONS=289} [2022-11-02 20:10:57,324 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 1 predicate places. [2022-11-02 20:10:57,324 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 289 transitions, 1064 flow [2022-11-02 20:10:57,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:57,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:57,325 INFO L208 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] [2022-11-02 20:10:57,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:10:57,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:57,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1652809650, now seen corresponding path program 1 times [2022-11-02 20:10:57,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:57,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675046469] [2022-11-02 20:10:57,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:57,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:57,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675046469] [2022-11-02 20:10:57,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675046469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:57,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:57,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786896399] [2022-11-02 20:10:57,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:57,928 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-02 20:10:57,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 289 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:57,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:57,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-02 20:10:57,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:59,768 INFO L130 PetriNetUnfolder]: 1448/3388 cut-off events. [2022-11-02 20:10:59,769 INFO L131 PetriNetUnfolder]: For 3667/3693 co-relation queries the response was YES. [2022-11-02 20:10:59,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10650 conditions, 3388 events. 1448/3388 cut-off events. For 3667/3693 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22664 event pairs, 515 based on Foata normal form. 0/3320 useless extension candidates. Maximal degree in co-relation 9454. Up to 2180 conditions per place. [2022-11-02 20:10:59,837 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 167 selfloop transitions, 26 changer transitions 0/324 dead transitions. [2022-11-02 20:10:59,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 324 transitions, 1652 flow [2022-11-02 20:10:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:10:59,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:10:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-02 20:10:59,843 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-02 20:10:59,844 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-02 20:10:59,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-02 20:10:59,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:59,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-02 20:10:59,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:59,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:59,854 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:59,854 INFO L175 Difference]: Start difference. First operand has 246 places, 289 transitions, 1064 flow. Second operand 6 states and 976 transitions. [2022-11-02 20:10:59,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 324 transitions, 1652 flow [2022-11-02 20:10:59,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 324 transitions, 1652 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:10:59,875 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1328 flow [2022-11-02 20:10:59,876 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-02 20:10:59,876 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-02 20:10:59,877 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1328 flow [2022-11-02 20:10:59,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:59,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:59,879 INFO L208 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] [2022-11-02 20:10:59,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:10:59,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:10:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1071839121, now seen corresponding path program 1 times [2022-11-02 20:10:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:59,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800586398] [2022-11-02 20:10:59,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:00,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:00,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800586398] [2022-11-02 20:11:00,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800586398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:00,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:00,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:11:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992475528] [2022-11-02 20:11:00,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:00,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:11:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:00,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:11:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:11:00,105 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-02 20:11:00,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1328 flow. Second operand has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:00,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:00,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-02 20:11:00,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:00,700 INFO L130 PetriNetUnfolder]: 327/1127 cut-off events. [2022-11-02 20:11:00,700 INFO L131 PetriNetUnfolder]: For 1923/1995 co-relation queries the response was YES. [2022-11-02 20:11:00,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 1127 events. 327/1127 cut-off events. For 1923/1995 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6257 event pairs, 27 based on Foata normal form. 16/1124 useless extension candidates. Maximal degree in co-relation 3217. Up to 373 conditions per place. [2022-11-02 20:11:00,719 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 66 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-02 20:11:00,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1124 flow [2022-11-02 20:11:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:11:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:11:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-02 20:11:00,725 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-02 20:11:00,725 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-02 20:11:00,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-02 20:11:00,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:00,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-02 20:11:00,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:00,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:00,738 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:00,738 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1328 flow. Second operand 6 states and 1278 transitions. [2022-11-02 20:11:00,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1124 flow [2022-11-02 20:11:00,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1055 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-02 20:11:00,753 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 714 flow [2022-11-02 20:11:00,754 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-02 20:11:00,757 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-02 20:11:00,758 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 714 flow [2022-11-02 20:11:00,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:00,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:00,759 INFO L208 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] [2022-11-02 20:11:00,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:11:00,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:00,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1726618591, now seen corresponding path program 1 times [2022-11-02 20:11:00,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:00,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603738198] [2022-11-02 20:11:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:05,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:05,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603738198] [2022-11-02 20:11:05,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603738198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:05,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:05,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:05,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28563091] [2022-11-02 20:11:05,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:05,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:05,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:05,216 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:05,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 714 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:05,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:05,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:05,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:08,468 INFO L130 PetriNetUnfolder]: 1024/2127 cut-off events. [2022-11-02 20:11:08,468 INFO L131 PetriNetUnfolder]: For 4017/4045 co-relation queries the response was YES. [2022-11-02 20:11:08,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7118 conditions, 2127 events. 1024/2127 cut-off events. For 4017/4045 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 12344 event pairs, 51 based on Foata normal form. 8/2114 useless extension candidates. Maximal degree in co-relation 6940. Up to 829 conditions per place. [2022-11-02 20:11:08,500 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 237 selfloop transitions, 64 changer transitions 0/412 dead transitions. [2022-11-02 20:11:08,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 412 transitions, 2480 flow [2022-11-02 20:11:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:11:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:11:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2762 transitions. [2022-11-02 20:11:08,511 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5591093117408907 [2022-11-02 20:11:08,511 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2762 transitions. [2022-11-02 20:11:08,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2762 transitions. [2022-11-02 20:11:08,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:08,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2762 transitions. [2022-11-02 20:11:08,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.1) internal successors, (2762), 20 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:08,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:08,537 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:08,537 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 714 flow. Second operand 20 states and 2762 transitions. [2022-11-02 20:11:08,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 412 transitions, 2480 flow [2022-11-02 20:11:08,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 412 transitions, 2455 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-02 20:11:08,566 INFO L231 Difference]: Finished difference. Result has 254 places, 276 transitions, 1355 flow [2022-11-02 20:11:08,567 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1355, PETRI_PLACES=254, PETRI_TRANSITIONS=276} [2022-11-02 20:11:08,568 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 9 predicate places. [2022-11-02 20:11:08,568 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 276 transitions, 1355 flow [2022-11-02 20:11:08,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:08,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:08,570 INFO L208 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] [2022-11-02 20:11:08,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:11:08,571 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1567703431, now seen corresponding path program 2 times [2022-11-02 20:11:08,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:08,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308185518] [2022-11-02 20:11:08,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:08,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:11,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:11,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308185518] [2022-11-02 20:11:11,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308185518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:11,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:11,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:11,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148913315] [2022-11-02 20:11:11,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:11,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:11,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:11,810 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:11,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 276 transitions, 1355 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:11,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:11,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:11,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:14,638 INFO L130 PetriNetUnfolder]: 1268/2618 cut-off events. [2022-11-02 20:11:14,639 INFO L131 PetriNetUnfolder]: For 11527/11555 co-relation queries the response was YES. [2022-11-02 20:11:14,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11180 conditions, 2618 events. 1268/2618 cut-off events. For 11527/11555 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15666 event pairs, 366 based on Foata normal form. 8/2593 useless extension candidates. Maximal degree in co-relation 10998. Up to 1471 conditions per place. [2022-11-02 20:11:14,679 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 212 selfloop transitions, 85 changer transitions 0/408 dead transitions. [2022-11-02 20:11:14,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 408 transitions, 2949 flow [2022-11-02 20:11:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:11:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 20:11:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-11-02 20:11:14,689 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5637056442010002 [2022-11-02 20:11:14,690 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-11-02 20:11:14,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-11-02 20:11:14,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:14,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-11-02 20:11:14,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.23529411764707) internal successors, (2367), 17 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:14,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:14,732 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:14,732 INFO L175 Difference]: Start difference. First operand has 254 places, 276 transitions, 1355 flow. Second operand 17 states and 2367 transitions. [2022-11-02 20:11:14,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 408 transitions, 2949 flow [2022-11-02 20:11:14,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 408 transitions, 2881 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-02 20:11:14,793 INFO L231 Difference]: Finished difference. Result has 269 places, 323 transitions, 2278 flow [2022-11-02 20:11:14,795 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2278, PETRI_PLACES=269, PETRI_TRANSITIONS=323} [2022-11-02 20:11:14,796 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 24 predicate places. [2022-11-02 20:11:14,796 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 323 transitions, 2278 flow [2022-11-02 20:11:14,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:14,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:14,798 INFO L208 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] [2022-11-02 20:11:14,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:11:14,799 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:14,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash 159715451, now seen corresponding path program 3 times [2022-11-02 20:11:14,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:14,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030113155] [2022-11-02 20:11:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:14,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:17,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:17,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030113155] [2022-11-02 20:11:17,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030113155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:17,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:17,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334316936] [2022-11-02 20:11:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:17,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:17,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:17,567 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:17,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 323 transitions, 2278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:17,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:17,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:17,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:20,723 INFO L130 PetriNetUnfolder]: 1375/2751 cut-off events. [2022-11-02 20:11:20,724 INFO L131 PetriNetUnfolder]: For 18387/18387 co-relation queries the response was YES. [2022-11-02 20:11:20,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13987 conditions, 2751 events. 1375/2751 cut-off events. For 18387/18387 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16172 event pairs, 395 based on Foata normal form. 8/2726 useless extension candidates. Maximal degree in co-relation 13797. Up to 1418 conditions per place. [2022-11-02 20:11:20,769 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 199 selfloop transitions, 127 changer transitions 0/437 dead transitions. [2022-11-02 20:11:20,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 437 transitions, 3895 flow [2022-11-02 20:11:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:11:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 20:11:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2233 transitions. [2022-11-02 20:11:20,778 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5650303643724697 [2022-11-02 20:11:20,778 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2233 transitions. [2022-11-02 20:11:20,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2233 transitions. [2022-11-02 20:11:20,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:20,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2233 transitions. [2022-11-02 20:11:20,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 139.5625) internal successors, (2233), 16 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,797 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,797 INFO L175 Difference]: Start difference. First operand has 269 places, 323 transitions, 2278 flow. Second operand 16 states and 2233 transitions. [2022-11-02 20:11:20,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 437 transitions, 3895 flow [2022-11-02 20:11:20,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 437 transitions, 3698 flow, removed 83 selfloop flow, removed 9 redundant places. [2022-11-02 20:11:20,912 INFO L231 Difference]: Finished difference. Result has 281 places, 367 transitions, 3262 flow [2022-11-02 20:11:20,913 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3262, PETRI_PLACES=281, PETRI_TRANSITIONS=367} [2022-11-02 20:11:20,913 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 36 predicate places. [2022-11-02 20:11:20,914 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 367 transitions, 3262 flow [2022-11-02 20:11:20,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:20,915 INFO L208 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] [2022-11-02 20:11:20,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:11:20,916 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash 458935901, now seen corresponding path program 4 times [2022-11-02 20:11:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:20,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792368699] [2022-11-02 20:11:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:24,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792368699] [2022-11-02 20:11:24,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792368699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:24,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:24,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215415343] [2022-11-02 20:11:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:24,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:24,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:24,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:24,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:24,084 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:24,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 367 transitions, 3262 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:24,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:24,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:27,913 INFO L130 PetriNetUnfolder]: 1655/3274 cut-off events. [2022-11-02 20:11:27,914 INFO L131 PetriNetUnfolder]: For 32815/32899 co-relation queries the response was YES. [2022-11-02 20:11:27,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18804 conditions, 3274 events. 1655/3274 cut-off events. For 32815/32899 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 20212 event pairs, 260 based on Foata normal form. 8/3250 useless extension candidates. Maximal degree in co-relation 18609. Up to 1454 conditions per place. [2022-11-02 20:11:27,967 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 317 selfloop transitions, 161 changer transitions 0/589 dead transitions. [2022-11-02 20:11:27,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 589 transitions, 7145 flow [2022-11-02 20:11:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:11:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:11:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-02 20:11:27,977 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-02 20:11:27,977 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-02 20:11:27,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-02 20:11:27,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:27,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-02 20:11:27,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,010 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,011 INFO L175 Difference]: Start difference. First operand has 281 places, 367 transitions, 3262 flow. Second operand 20 states and 2768 transitions. [2022-11-02 20:11:28,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 589 transitions, 7145 flow [2022-11-02 20:11:28,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 589 transitions, 6965 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-02 20:11:28,148 INFO L231 Difference]: Finished difference. Result has 298 places, 440 transitions, 5176 flow [2022-11-02 20:11:28,149 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3176, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5176, PETRI_PLACES=298, PETRI_TRANSITIONS=440} [2022-11-02 20:11:28,150 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 53 predicate places. [2022-11-02 20:11:28,150 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 440 transitions, 5176 flow [2022-11-02 20:11:28,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:28,152 INFO L208 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] [2022-11-02 20:11:28,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:11:28,152 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1435470851, now seen corresponding path program 5 times [2022-11-02 20:11:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:28,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334100689] [2022-11-02 20:11:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:28,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334100689] [2022-11-02 20:11:30,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334100689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:30,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:30,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531884412] [2022-11-02 20:11:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:30,587 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:30,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 440 transitions, 5176 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:30,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:30,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:34,694 INFO L130 PetriNetUnfolder]: 1872/3659 cut-off events. [2022-11-02 20:11:34,694 INFO L131 PetriNetUnfolder]: For 51174/51174 co-relation queries the response was YES. [2022-11-02 20:11:34,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24355 conditions, 3659 events. 1872/3659 cut-off events. For 51174/51174 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22998 event pairs, 422 based on Foata normal form. 8/3635 useless extension candidates. Maximal degree in co-relation 24153. Up to 1836 conditions per place. [2022-11-02 20:11:34,761 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 246 selfloop transitions, 235 changer transitions 0/592 dead transitions. [2022-11-02 20:11:34,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 592 transitions, 7984 flow [2022-11-02 20:11:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:11:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 20:11:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2375 transitions. [2022-11-02 20:11:34,768 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5656108597285068 [2022-11-02 20:11:34,768 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2375 transitions. [2022-11-02 20:11:34,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2375 transitions. [2022-11-02 20:11:34,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:34,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2375 transitions. [2022-11-02 20:11:34,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.7058823529412) internal successors, (2375), 17 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:34,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:34,784 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:34,784 INFO L175 Difference]: Start difference. First operand has 298 places, 440 transitions, 5176 flow. Second operand 17 states and 2375 transitions. [2022-11-02 20:11:34,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 592 transitions, 7984 flow [2022-11-02 20:11:35,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 592 transitions, 7669 flow, removed 92 selfloop flow, removed 12 redundant places. [2022-11-02 20:11:35,053 INFO L231 Difference]: Finished difference. Result has 308 places, 505 transitions, 7095 flow [2022-11-02 20:11:35,054 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=4925, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7095, PETRI_PLACES=308, PETRI_TRANSITIONS=505} [2022-11-02 20:11:35,055 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 63 predicate places. [2022-11-02 20:11:35,056 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 505 transitions, 7095 flow [2022-11-02 20:11:35,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:35,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:35,057 INFO L208 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] [2022-11-02 20:11:35,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:11:35,058 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:35,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:35,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1790632389, now seen corresponding path program 6 times [2022-11-02 20:11:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:35,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980702702] [2022-11-02 20:11:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:37,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:37,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980702702] [2022-11-02 20:11:37,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980702702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:37,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:37,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092570369] [2022-11-02 20:11:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:37,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:37,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:37,781 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:37,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 505 transitions, 7095 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:37,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:37,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:37,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:41,645 INFO L130 PetriNetUnfolder]: 1946/3781 cut-off events. [2022-11-02 20:11:41,645 INFO L131 PetriNetUnfolder]: For 70368/70368 co-relation queries the response was YES. [2022-11-02 20:11:41,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27116 conditions, 3781 events. 1946/3781 cut-off events. For 70368/70368 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 24063 event pairs, 56 based on Foata normal form. 8/3770 useless extension candidates. Maximal degree in co-relation 26908. Up to 1745 conditions per place. [2022-11-02 20:11:41,719 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 367 selfloop transitions, 215 changer transitions 0/693 dead transitions. [2022-11-02 20:11:41,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 693 transitions, 11011 flow [2022-11-02 20:11:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:11:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:11:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-02 20:11:41,726 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-02 20:11:41,727 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-02 20:11:41,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-02 20:11:41,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:41,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-02 20:11:41,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:41,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:41,744 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:41,745 INFO L175 Difference]: Start difference. First operand has 308 places, 505 transitions, 7095 flow. Second operand 20 states and 2768 transitions. [2022-11-02 20:11:41,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 693 transitions, 11011 flow [2022-11-02 20:11:42,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 693 transitions, 10749 flow, removed 49 selfloop flow, removed 9 redundant places. [2022-11-02 20:11:42,047 INFO L231 Difference]: Finished difference. Result has 324 places, 537 transitions, 8247 flow [2022-11-02 20:11:42,048 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=6936, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8247, PETRI_PLACES=324, PETRI_TRANSITIONS=537} [2022-11-02 20:11:42,048 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-02 20:11:42,049 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 537 transitions, 8247 flow [2022-11-02 20:11:42,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:42,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:42,050 INFO L208 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] [2022-11-02 20:11:42,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:11:42,050 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:42,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:42,051 INFO L85 PathProgramCache]: Analyzing trace with hash -151037885, now seen corresponding path program 7 times [2022-11-02 20:11:42,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:42,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394078898] [2022-11-02 20:11:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:42,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:44,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:44,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394078898] [2022-11-02 20:11:44,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394078898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:44,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:44,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:44,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652505122] [2022-11-02 20:11:44,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:44,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:44,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:44,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:44,461 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:44,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 537 transitions, 8247 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:44,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:44,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:44,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:48,006 INFO L130 PetriNetUnfolder]: 2205/4295 cut-off events. [2022-11-02 20:11:48,006 INFO L131 PetriNetUnfolder]: For 80010/80010 co-relation queries the response was YES. [2022-11-02 20:11:48,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32432 conditions, 4295 events. 2205/4295 cut-off events. For 80010/80010 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 28045 event pairs, 431 based on Foata normal form. 8/4271 useless extension candidates. Maximal degree in co-relation 32218. Up to 2124 conditions per place. [2022-11-02 20:11:48,081 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 276 selfloop transitions, 309 changer transitions 0/696 dead transitions. [2022-11-02 20:11:48,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 696 transitions, 11805 flow [2022-11-02 20:11:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:11:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-02 20:11:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2374 transitions. [2022-11-02 20:11:48,088 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5653727077875684 [2022-11-02 20:11:48,088 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2374 transitions. [2022-11-02 20:11:48,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2374 transitions. [2022-11-02 20:11:48,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:48,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2374 transitions. [2022-11-02 20:11:48,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.64705882352942) internal successors, (2374), 17 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:48,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:48,103 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:48,104 INFO L175 Difference]: Start difference. First operand has 324 places, 537 transitions, 8247 flow. Second operand 17 states and 2374 transitions. [2022-11-02 20:11:48,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 696 transitions, 11805 flow [2022-11-02 20:11:48,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 696 transitions, 11582 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-02 20:11:48,661 INFO L231 Difference]: Finished difference. Result has 336 places, 622 transitions, 11243 flow [2022-11-02 20:11:48,663 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8075, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11243, PETRI_PLACES=336, PETRI_TRANSITIONS=622} [2022-11-02 20:11:48,663 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 91 predicate places. [2022-11-02 20:11:48,664 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 622 transitions, 11243 flow [2022-11-02 20:11:48,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:48,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:48,665 INFO L208 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] [2022-11-02 20:11:48,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:11:48,666 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:48,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:48,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1981756155, now seen corresponding path program 8 times [2022-11-02 20:11:48,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:48,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991956194] [2022-11-02 20:11:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:48,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:50,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991956194] [2022-11-02 20:11:50,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991956194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:50,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:50,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:50,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591084426] [2022-11-02 20:11:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:50,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:50,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:50,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:50,912 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:50,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 622 transitions, 11243 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:50,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:50,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:50,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:55,133 INFO L130 PetriNetUnfolder]: 2251/4416 cut-off events. [2022-11-02 20:11:55,133 INFO L131 PetriNetUnfolder]: For 109396/109424 co-relation queries the response was YES. [2022-11-02 20:11:55,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36055 conditions, 4416 events. 2251/4416 cut-off events. For 109396/109424 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 29273 event pairs, 64 based on Foata normal form. 8/4401 useless extension candidates. Maximal degree in co-relation 35833. Up to 2085 conditions per place. [2022-11-02 20:11:55,216 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 418 selfloop transitions, 273 changer transitions 0/802 dead transitions. [2022-11-02 20:11:55,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 802 transitions, 15569 flow [2022-11-02 20:11:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:11:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:11:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-02 20:11:55,222 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-02 20:11:55,223 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-02 20:11:55,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-02 20:11:55,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:55,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-02 20:11:55,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 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) [2022-11-02 20:11:55,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,240 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,240 INFO L175 Difference]: Start difference. First operand has 336 places, 622 transitions, 11243 flow. Second operand 19 states and 2631 transitions. [2022-11-02 20:11:55,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 802 transitions, 15569 flow [2022-11-02 20:11:55,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 802 transitions, 15133 flow, removed 144 selfloop flow, removed 10 redundant places. [2022-11-02 20:11:55,802 INFO L231 Difference]: Finished difference. Result has 349 places, 641 transitions, 12406 flow [2022-11-02 20:11:55,803 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10925, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12406, PETRI_PLACES=349, PETRI_TRANSITIONS=641} [2022-11-02 20:11:55,803 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-02 20:11:55,803 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 641 transitions, 12406 flow [2022-11-02 20:11:55,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:55,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:55,805 INFO L208 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] [2022-11-02 20:11:55,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:11:55,805 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:11:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:55,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1914038053, now seen corresponding path program 9 times [2022-11-02 20:11:55,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:55,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458571363] [2022-11-02 20:11:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:55,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:57,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458571363] [2022-11-02 20:11:57,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458571363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:57,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:57,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:11:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770512220] [2022-11-02 20:11:57,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:57,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:11:57,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:11:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:11:57,850 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:11:57,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 641 transitions, 12406 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:57,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:57,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:11:57,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:02,320 INFO L130 PetriNetUnfolder]: 2410/4631 cut-off events. [2022-11-02 20:12:02,320 INFO L131 PetriNetUnfolder]: For 124835/124835 co-relation queries the response was YES. [2022-11-02 20:12:02,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40607 conditions, 4631 events. 2410/4631 cut-off events. For 124835/124835 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 30256 event pairs, 210 based on Foata normal form. 8/4613 useless extension candidates. Maximal degree in co-relation 40383. Up to 2683 conditions per place. [2022-11-02 20:12:02,408 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 359 selfloop transitions, 313 changer transitions 0/783 dead transitions. [2022-11-02 20:12:02,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 783 transitions, 15985 flow [2022-11-02 20:12:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:12:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:12:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2506 transitions. [2022-11-02 20:12:02,415 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5636527215474584 [2022-11-02 20:12:02,415 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2506 transitions. [2022-11-02 20:12:02,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2506 transitions. [2022-11-02 20:12:02,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:02,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2506 transitions. [2022-11-02 20:12:02,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.22222222222223) internal successors, (2506), 18 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:02,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:02,431 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:02,431 INFO L175 Difference]: Start difference. First operand has 349 places, 641 transitions, 12406 flow. Second operand 18 states and 2506 transitions. [2022-11-02 20:12:02,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 783 transitions, 15985 flow [2022-11-02 20:12:03,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 783 transitions, 15830 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-11-02 20:12:03,246 INFO L231 Difference]: Finished difference. Result has 360 places, 687 transitions, 14757 flow [2022-11-02 20:12:03,247 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12270, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14757, PETRI_PLACES=360, PETRI_TRANSITIONS=687} [2022-11-02 20:12:03,248 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 115 predicate places. [2022-11-02 20:12:03,248 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 687 transitions, 14757 flow [2022-11-02 20:12:03,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:03,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:03,250 INFO L208 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] [2022-11-02 20:12:03,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:12:03,250 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash -348813407, now seen corresponding path program 10 times [2022-11-02 20:12:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:03,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616273430] [2022-11-02 20:12:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:05,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:05,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616273430] [2022-11-02 20:12:05,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616273430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:05,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:05,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:05,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304089683] [2022-11-02 20:12:05,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:05,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:05,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:05,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:05,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:05,948 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:05,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 687 transitions, 14757 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:05,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:05,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:05,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:11,477 INFO L130 PetriNetUnfolder]: 2627/5118 cut-off events. [2022-11-02 20:12:11,478 INFO L131 PetriNetUnfolder]: For 162224/162224 co-relation queries the response was YES. [2022-11-02 20:12:11,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47071 conditions, 5118 events. 2627/5118 cut-off events. For 162224/162224 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 34517 event pairs, 490 based on Foata normal form. 8/5093 useless extension candidates. Maximal degree in co-relation 46842. Up to 2326 conditions per place. [2022-11-02 20:12:11,565 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 308 selfloop transitions, 478 changer transitions 0/897 dead transitions. [2022-11-02 20:12:11,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 897 transitions, 20111 flow [2022-11-02 20:12:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:12:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:12:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2765 transitions. [2022-11-02 20:12:11,571 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5597165991902834 [2022-11-02 20:12:11,571 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2765 transitions. [2022-11-02 20:12:11,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2765 transitions. [2022-11-02 20:12:11,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:11,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2765 transitions. [2022-11-02 20:12:11,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.25) internal successors, (2765), 20 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:11,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:11,588 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:11,588 INFO L175 Difference]: Start difference. First operand has 360 places, 687 transitions, 14757 flow. Second operand 20 states and 2765 transitions. [2022-11-02 20:12:11,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 897 transitions, 20111 flow [2022-11-02 20:12:12,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 897 transitions, 19920 flow, removed 48 selfloop flow, removed 11 redundant places. [2022-11-02 20:12:12,671 INFO L231 Difference]: Finished difference. Result has 380 places, 813 transitions, 19301 flow [2022-11-02 20:12:12,671 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=14567, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19301, PETRI_PLACES=380, PETRI_TRANSITIONS=813} [2022-11-02 20:12:12,672 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 135 predicate places. [2022-11-02 20:12:12,672 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 813 transitions, 19301 flow [2022-11-02 20:12:12,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:12,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:12,673 INFO L208 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] [2022-11-02 20:12:12,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:12:12,674 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:12,675 INFO L85 PathProgramCache]: Analyzing trace with hash -852222061, now seen corresponding path program 11 times [2022-11-02 20:12:12,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:12,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813637461] [2022-11-02 20:12:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:12,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:14,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:14,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813637461] [2022-11-02 20:12:14,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813637461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:14,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:14,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:14,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091422926] [2022-11-02 20:12:14,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:14,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:14,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:14,942 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:14,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 813 transitions, 19301 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:14,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:14,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:14,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:20,283 INFO L130 PetriNetUnfolder]: 2631/5128 cut-off events. [2022-11-02 20:12:20,283 INFO L131 PetriNetUnfolder]: For 186671/186699 co-relation queries the response was YES. [2022-11-02 20:12:20,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51024 conditions, 5128 events. 2631/5128 cut-off events. For 186671/186699 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 34918 event pairs, 120 based on Foata normal form. 8/5113 useless extension candidates. Maximal degree in co-relation 50783. Up to 2486 conditions per place. [2022-11-02 20:12:20,359 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 498 selfloop transitions, 347 changer transitions 0/956 dead transitions. [2022-11-02 20:12:20,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 956 transitions, 23274 flow [2022-11-02 20:12:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:12:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:12:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-02 20:12:20,365 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-02 20:12:20,365 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-02 20:12:20,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-02 20:12:20,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:20,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-02 20:12:20,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:20,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:20,381 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:20,381 INFO L175 Difference]: Start difference. First operand has 380 places, 813 transitions, 19301 flow. Second operand 20 states and 2766 transitions. [2022-11-02 20:12:20,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 956 transitions, 23274 flow [2022-11-02 20:12:21,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 956 transitions, 22797 flow, removed 233 selfloop flow, removed 6 redundant places. [2022-11-02 20:12:21,412 INFO L231 Difference]: Finished difference. Result has 397 places, 831 transitions, 20331 flow [2022-11-02 20:12:21,412 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20331, PETRI_PLACES=397, PETRI_TRANSITIONS=831} [2022-11-02 20:12:21,413 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2022-11-02 20:12:21,413 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 831 transitions, 20331 flow [2022-11-02 20:12:21,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:21,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:21,414 INFO L208 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] [2022-11-02 20:12:21,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:12:21,414 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1298826229, now seen corresponding path program 12 times [2022-11-02 20:12:21,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:21,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118890155] [2022-11-02 20:12:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:23,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:23,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118890155] [2022-11-02 20:12:23,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118890155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:23,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:23,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:23,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370761485] [2022-11-02 20:12:23,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:23,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:23,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:23,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:23,252 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:23,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 831 transitions, 20331 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:23,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:23,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:23,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:28,335 INFO L130 PetriNetUnfolder]: 2855/5524 cut-off events. [2022-11-02 20:12:28,335 INFO L131 PetriNetUnfolder]: For 218714/218714 co-relation queries the response was YES. [2022-11-02 20:12:28,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57588 conditions, 5524 events. 2855/5524 cut-off events. For 218714/218714 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 38147 event pairs, 192 based on Foata normal form. 8/5506 useless extension candidates. Maximal degree in co-relation 57343. Up to 3187 conditions per place. [2022-11-02 20:12:28,429 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 479 selfloop transitions, 399 changer transitions 0/989 dead transitions. [2022-11-02 20:12:28,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 989 transitions, 25653 flow [2022-11-02 20:12:28,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 20:12:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 20:12:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2505 transitions. [2022-11-02 20:12:28,434 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5634278002699056 [2022-11-02 20:12:28,434 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2505 transitions. [2022-11-02 20:12:28,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2505 transitions. [2022-11-02 20:12:28,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:28,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2505 transitions. [2022-11-02 20:12:28,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.16666666666666) internal successors, (2505), 18 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:28,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:28,447 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:28,448 INFO L175 Difference]: Start difference. First operand has 397 places, 831 transitions, 20331 flow. Second operand 18 states and 2505 transitions. [2022-11-02 20:12:28,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 989 transitions, 25653 flow [2022-11-02 20:12:29,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 989 transitions, 25392 flow, removed 22 selfloop flow, removed 14 redundant places. [2022-11-02 20:12:29,854 INFO L231 Difference]: Finished difference. Result has 407 places, 909 transitions, 24471 flow [2022-11-02 20:12:29,855 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20088, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24471, PETRI_PLACES=407, PETRI_TRANSITIONS=909} [2022-11-02 20:12:29,856 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 162 predicate places. [2022-11-02 20:12:29,856 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 909 transitions, 24471 flow [2022-11-02 20:12:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:29,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:29,857 INFO L208 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] [2022-11-02 20:12:29,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:12:29,858 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:29,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:29,858 INFO L85 PathProgramCache]: Analyzing trace with hash -656161895, now seen corresponding path program 13 times [2022-11-02 20:12:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:29,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391329775] [2022-11-02 20:12:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:29,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:32,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391329775] [2022-11-02 20:12:32,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391329775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:32,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:32,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518264777] [2022-11-02 20:12:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:32,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:32,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:32,276 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:32,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 909 transitions, 24471 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:32,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:32,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:32,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:38,934 INFO L130 PetriNetUnfolder]: 3275/6346 cut-off events. [2022-11-02 20:12:38,934 INFO L131 PetriNetUnfolder]: For 298951/298979 co-relation queries the response was YES. [2022-11-02 20:12:39,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70470 conditions, 6346 events. 3275/6346 cut-off events. For 298951/298979 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 44605 event pairs, 263 based on Foata normal form. 8/6327 useless extension candidates. Maximal degree in co-relation 70218. Up to 3656 conditions per place. [2022-11-02 20:12:39,074 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 565 selfloop transitions, 471 changer transitions 0/1147 dead transitions. [2022-11-02 20:12:39,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1147 transitions, 33211 flow [2022-11-02 20:12:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:12:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:12:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-02 20:12:39,080 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-02 20:12:39,080 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-02 20:12:39,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-02 20:12:39,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:39,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-02 20:12:39,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:39,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:39,094 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:39,094 INFO L175 Difference]: Start difference. First operand has 407 places, 909 transitions, 24471 flow. Second operand 20 states and 2767 transitions. [2022-11-02 20:12:39,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1147 transitions, 33211 flow [2022-11-02 20:12:41,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1147 transitions, 32996 flow, removed 78 selfloop flow, removed 9 redundant places. [2022-11-02 20:12:41,854 INFO L231 Difference]: Finished difference. Result has 426 places, 1050 transitions, 31827 flow [2022-11-02 20:12:41,856 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=24270, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=355, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=31827, PETRI_PLACES=426, PETRI_TRANSITIONS=1050} [2022-11-02 20:12:41,857 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 181 predicate places. [2022-11-02 20:12:41,857 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1050 transitions, 31827 flow [2022-11-02 20:12:41,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:41,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:41,858 INFO L208 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] [2022-11-02 20:12:41,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:12:41,859 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1946043831, now seen corresponding path program 14 times [2022-11-02 20:12:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:41,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959708902] [2022-11-02 20:12:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:41,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:44,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:44,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959708902] [2022-11-02 20:12:44,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959708902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:44,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:44,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:44,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070009257] [2022-11-02 20:12:44,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:44,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:44,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:44,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:44,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:44,147 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:44,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1050 transitions, 31827 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:44,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:44,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:44,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:52,152 INFO L130 PetriNetUnfolder]: 3463/6709 cut-off events. [2022-11-02 20:12:52,153 INFO L131 PetriNetUnfolder]: For 371186/371200 co-relation queries the response was YES. [2022-11-02 20:12:52,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78976 conditions, 6709 events. 3463/6709 cut-off events. For 371186/371200 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 48264 event pairs, 350 based on Foata normal form. 11/6695 useless extension candidates. Maximal degree in co-relation 78715. Up to 3599 conditions per place. [2022-11-02 20:12:52,290 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 534 selfloop transitions, 588 changer transitions 0/1233 dead transitions. [2022-11-02 20:12:52,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1233 transitions, 38708 flow [2022-11-02 20:12:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:12:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:12:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-02 20:12:52,297 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-02 20:12:52,297 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-02 20:12:52,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-02 20:12:52,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:52,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-02 20:12:52,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:52,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:52,313 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:52,313 INFO L175 Difference]: Start difference. First operand has 426 places, 1050 transitions, 31827 flow. Second operand 20 states and 2767 transitions. [2022-11-02 20:12:52,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1233 transitions, 38708 flow [2022-11-02 20:12:55,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1233 transitions, 38293 flow, removed 185 selfloop flow, removed 8 redundant places. [2022-11-02 20:12:55,248 INFO L231 Difference]: Finished difference. Result has 447 places, 1148 transitions, 37113 flow [2022-11-02 20:12:55,249 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=31413, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=494, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37113, PETRI_PLACES=447, PETRI_TRANSITIONS=1148} [2022-11-02 20:12:55,249 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 202 predicate places. [2022-11-02 20:12:55,250 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 1148 transitions, 37113 flow [2022-11-02 20:12:55,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:55,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:55,251 INFO L208 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] [2022-11-02 20:12:55,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:12:55,251 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:12:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash 944467097, now seen corresponding path program 15 times [2022-11-02 20:12:55,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:55,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756054002] [2022-11-02 20:12:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:55,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:56,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:56,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756054002] [2022-11-02 20:12:56,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756054002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:56,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:56,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:12:56,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46102647] [2022-11-02 20:12:56,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:56,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:12:56,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:12:56,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:12:56,738 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:12:56,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 1148 transitions, 37113 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:56,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:56,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:12:56,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:04,329 INFO L130 PetriNetUnfolder]: 3572/6903 cut-off events. [2022-11-02 20:13:04,329 INFO L131 PetriNetUnfolder]: For 418113/418127 co-relation queries the response was YES. [2022-11-02 20:13:04,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85670 conditions, 6903 events. 3572/6903 cut-off events. For 418113/418127 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 50105 event pairs, 200 based on Foata normal form. 14/6895 useless extension candidates. Maximal degree in co-relation 85399. Up to 4136 conditions per place. [2022-11-02 20:13:04,469 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 649 selfloop transitions, 521 changer transitions 0/1281 dead transitions. [2022-11-02 20:13:04,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1281 transitions, 42033 flow [2022-11-02 20:13:04,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 20:13:04,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-02 20:13:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2636 transitions. [2022-11-02 20:13:04,473 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.561687619859365 [2022-11-02 20:13:04,473 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2636 transitions. [2022-11-02 20:13:04,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2636 transitions. [2022-11-02 20:13:04,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:04,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2636 transitions. [2022-11-02 20:13:04,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.73684210526315) internal successors, (2636), 19 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) [2022-11-02 20:13:04,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:04,485 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:04,485 INFO L175 Difference]: Start difference. First operand has 447 places, 1148 transitions, 37113 flow. Second operand 19 states and 2636 transitions. [2022-11-02 20:13:04,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1281 transitions, 42033 flow [2022-11-02 20:13:07,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 1281 transitions, 41439 flow, removed 271 selfloop flow, removed 10 redundant places. [2022-11-02 20:13:07,733 INFO L231 Difference]: Finished difference. Result has 463 places, 1191 transitions, 40408 flow [2022-11-02 20:13:07,734 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=36519, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=480, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40408, PETRI_PLACES=463, PETRI_TRANSITIONS=1191} [2022-11-02 20:13:07,735 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 218 predicate places. [2022-11-02 20:13:07,735 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 1191 transitions, 40408 flow [2022-11-02 20:13:07,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:07,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:07,736 INFO L208 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] [2022-11-02 20:13:07,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:13:07,736 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:13:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1389237111, now seen corresponding path program 16 times [2022-11-02 20:13:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:07,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684880433] [2022-11-02 20:13:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:07,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:09,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:09,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684880433] [2022-11-02 20:13:09,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684880433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:09,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:09,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:13:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884292847] [2022-11-02 20:13:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:09,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:13:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:13:09,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:13:09,920 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:13:09,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1191 transitions, 40408 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:09,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:09,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:13:09,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:19,626 INFO L130 PetriNetUnfolder]: 3765/7244 cut-off events. [2022-11-02 20:13:19,626 INFO L131 PetriNetUnfolder]: For 482630/482686 co-relation queries the response was YES. [2022-11-02 20:13:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93379 conditions, 7244 events. 3765/7244 cut-off events. For 482630/482686 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 52463 event pairs, 277 based on Foata normal form. 10/7227 useless extension candidates. Maximal degree in co-relation 93100. Up to 4240 conditions per place. [2022-11-02 20:13:19,792 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 663 selfloop transitions, 559 changer transitions 0/1333 dead transitions. [2022-11-02 20:13:19,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1333 transitions, 46117 flow [2022-11-02 20:13:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:13:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:13:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2771 transitions. [2022-11-02 20:13:19,798 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5609311740890688 [2022-11-02 20:13:19,798 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2771 transitions. [2022-11-02 20:13:19,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2771 transitions. [2022-11-02 20:13:19,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:19,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2771 transitions. [2022-11-02 20:13:19,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.55) internal successors, (2771), 20 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:19,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:19,810 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:19,810 INFO L175 Difference]: Start difference. First operand has 463 places, 1191 transitions, 40408 flow. Second operand 20 states and 2771 transitions. [2022-11-02 20:13:19,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1333 transitions, 46117 flow [2022-11-02 20:13:24,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1333 transitions, 45886 flow, removed 80 selfloop flow, removed 9 redundant places. [2022-11-02 20:13:24,484 INFO L231 Difference]: Finished difference. Result has 479 places, 1244 transitions, 43972 flow [2022-11-02 20:13:24,486 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=40207, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43972, PETRI_PLACES=479, PETRI_TRANSITIONS=1244} [2022-11-02 20:13:24,487 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 234 predicate places. [2022-11-02 20:13:24,487 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1244 transitions, 43972 flow [2022-11-02 20:13:24,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:24,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:24,488 INFO L208 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] [2022-11-02 20:13:24,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:13:24,489 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:13:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash 540071919, now seen corresponding path program 17 times [2022-11-02 20:13:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:24,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550545502] [2022-11-02 20:13:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:26,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:26,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550545502] [2022-11-02 20:13:26,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550545502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:26,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:26,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:13:26,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355609128] [2022-11-02 20:13:26,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:26,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:13:26,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:13:26,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:13:26,571 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:13:26,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1244 transitions, 43972 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:26,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:26,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:13:26,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:37,009 INFO L130 PetriNetUnfolder]: 3854/7409 cut-off events. [2022-11-02 20:13:37,009 INFO L131 PetriNetUnfolder]: For 526407/526421 co-relation queries the response was YES. [2022-11-02 20:13:37,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98836 conditions, 7409 events. 3854/7409 cut-off events. For 526407/526421 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 54320 event pairs, 224 based on Foata normal form. 14/7401 useless extension candidates. Maximal degree in co-relation 98551. Up to 4314 conditions per place. [2022-11-02 20:13:37,248 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 679 selfloop transitions, 582 changer transitions 0/1372 dead transitions. [2022-11-02 20:13:37,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1372 transitions, 49160 flow [2022-11-02 20:13:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:13:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:13:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-02 20:13:37,255 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-02 20:13:37,256 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-02 20:13:37,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-02 20:13:37,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:37,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-02 20:13:37,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:37,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:37,269 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:37,270 INFO L175 Difference]: Start difference. First operand has 479 places, 1244 transitions, 43972 flow. Second operand 20 states and 2768 transitions. [2022-11-02 20:13:37,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1372 transitions, 49160 flow [2022-11-02 20:13:42,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1372 transitions, 48680 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-02 20:13:42,276 INFO L231 Difference]: Finished difference. Result has 493 places, 1283 transitions, 47063 flow [2022-11-02 20:13:42,277 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=43523, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=546, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=47063, PETRI_PLACES=493, PETRI_TRANSITIONS=1283} [2022-11-02 20:13:42,278 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 248 predicate places. [2022-11-02 20:13:42,278 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1283 transitions, 47063 flow [2022-11-02 20:13:42,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:42,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:42,279 INFO L208 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] [2022-11-02 20:13:42,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:13:42,279 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:13:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1891039109, now seen corresponding path program 18 times [2022-11-02 20:13:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:42,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528009835] [2022-11-02 20:13:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:42,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:44,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528009835] [2022-11-02 20:13:44,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528009835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:44,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:44,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:13:44,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521070915] [2022-11-02 20:13:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:44,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:13:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:13:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:13:44,086 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:13:44,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1283 transitions, 47063 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:44,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:44,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:13:44,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:54,499 INFO L130 PetriNetUnfolder]: 3894/7577 cut-off events. [2022-11-02 20:13:54,499 INFO L131 PetriNetUnfolder]: For 562770/562812 co-relation queries the response was YES. [2022-11-02 20:13:54,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103283 conditions, 7577 events. 3894/7577 cut-off events. For 562770/562812 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 55836 event pairs, 581 based on Foata normal form. 8/7551 useless extension candidates. Maximal degree in co-relation 102991. Up to 4454 conditions per place. [2022-11-02 20:13:54,761 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 691 selfloop transitions, 586 changer transitions 0/1388 dead transitions. [2022-11-02 20:13:54,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1388 transitions, 51081 flow [2022-11-02 20:13:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:13:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-02 20:13:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-02 20:13:54,768 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-02 20:13:54,768 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-02 20:13:54,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-02 20:13:54,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:54,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-02 20:13:54,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:54,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:54,783 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:13:54,783 INFO L175 Difference]: Start difference. First operand has 493 places, 1283 transitions, 47063 flow. Second operand 20 states and 2767 transitions. [2022-11-02 20:13:54,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1388 transitions, 51081 flow [2022-11-02 20:14:00,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1388 transitions, 50796 flow, removed 92 selfloop flow, removed 11 redundant places. [2022-11-02 20:14:00,900 INFO L231 Difference]: Finished difference. Result has 505 places, 1299 transitions, 49278 flow [2022-11-02 20:14:00,901 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=46800, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=49278, PETRI_PLACES=505, PETRI_TRANSITIONS=1299} [2022-11-02 20:14:00,902 INFO L287 CegarLoopForPetriNet]: 245 programPoint places, 260 predicate places. [2022-11-02 20:14:00,902 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 1299 transitions, 49278 flow [2022-11-02 20:14:00,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:14:00,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:14:00,903 INFO L208 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] [2022-11-02 20:14:00,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:14:00,903 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-02 20:14:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:14:00,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1453306673, now seen corresponding path program 19 times [2022-11-02 20:14:00,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:14:00,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416576516] [2022-11-02 20:14:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:14:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:14:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:14:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:14:02,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:14:02,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416576516] [2022-11-02 20:14:02,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416576516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:14:02,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:14:02,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-02 20:14:02,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357299820] [2022-11-02 20:14:02,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:14:02,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 20:14:02,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:14:02,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 20:14:02,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:14:02,697 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-02 20:14:02,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 1299 transitions, 49278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:14:02,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:14:02,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-02 20:14:02,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand