./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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-6b4ec56 [2022-11-20 09:27:21,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:21,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:21,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:21,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:21,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:21,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:21,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:21,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:21,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:21,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:21,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:21,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:21,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:21,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:21,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:21,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:21,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:21,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:21,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:21,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:21,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:21,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:21,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:21,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:21,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:21,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:21,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:21,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:21,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:21,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:21,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:21,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:21,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:21,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:21,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:21,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:21,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:21,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:22,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:22,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:22,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:27:22,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:22,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:22,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:22,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:22,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:22,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:22,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:22,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:22,045 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:22,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:22,047 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:22,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:22,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:22,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:27:22,048 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:22,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:22,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:22,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:22,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:22,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:22,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:22,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:22,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:22,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:22,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:22,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:22,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:22,052 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:22,052 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:22,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:22,053 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_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-20 09:27:22,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:22,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:22,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:22,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:22,382 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:22,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-20 09:27:25,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:25,878 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:25,878 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-20 09:27:25,911 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/data/e1cec5aff/28997c25f3a74fe594d18c0d357709ae/FLAG542d4ee76 [2022-11-20 09:27:25,937 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/data/e1cec5aff/28997c25f3a74fe594d18c0d357709ae [2022-11-20 09:27:25,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:25,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:25,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:25,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:25,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:25,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:25" (1/1) ... [2022-11-20 09:27:25,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff27849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:25, skipping insertion in model container [2022-11-20 09:27:25,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:25" (1/1) ... [2022-11-20 09:27:25,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:26,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:26,240 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:27:26,959 WARN L237 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_f1581887-e49f-4d56-b280-b66d2cca6fdd/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-20 09:27:27,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:27,023 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:27,036 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 09:27:27,068 WARN L237 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_f1581887-e49f-4d56-b280-b66d2cca6fdd/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-20 09:27:27,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:27,198 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:27,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27 WrapperNode [2022-11-20 09:27:27,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:27,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:27,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:27,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:27,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,281 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 173 [2022-11-20 09:27:27,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:27,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:27,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:27,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:27,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:27,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:27,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:27,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:27,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (1/1) ... [2022-11-20 09:27:27,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:27,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:27,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:27,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1581887-e49f-4d56-b280-b66d2cca6fdd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:27:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 09:27:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 09:27:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:27,441 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:27:27,891 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:27,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:28,349 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:28,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:28,403 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:27:28,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:28 BoogieIcfgContainer [2022-11-20 09:27:28,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:28,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:28,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:28,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:28,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:25" (1/3) ... [2022-11-20 09:27:28,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2bbf31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:28, skipping insertion in model container [2022-11-20 09:27:28,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:27" (2/3) ... [2022-11-20 09:27:28,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2bbf31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:28, skipping insertion in model container [2022-11-20 09:27:28,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:28" (3/3) ... [2022-11-20 09:27:28,426 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-20 09:27:28,438 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:27:28,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:28,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-20 09:27:28,449 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:27:28,558 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 09:27:28,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 233 transitions, 482 flow [2022-11-20 09:27:28,791 INFO L130 PetriNetUnfolder]: 8/310 cut-off events. [2022-11-20 09:27:28,791 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:27:28,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 310 events. 8/310 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 576 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-20 09:27:28,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 233 transitions, 482 flow [2022-11-20 09:27:28,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 230 transitions, 472 flow [2022-11-20 09:27:28,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:28,835 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;@620b0c3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:28,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-20 09:27:28,850 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-20 09:27:28,850 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:27:28,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:28,852 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:28,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:28,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash 683495268, now seen corresponding path program 1 times [2022-11-20 09:27:28,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:28,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788924289] [2022-11-20 09:27:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:29,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788924289] [2022-11-20 09:27:29,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788924289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:29,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:29,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:29,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44161583] [2022-11-20 09:27:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:29,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:29,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:30,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:30,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:30,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-20 09:27:30,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 472 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:30,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:30,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-20 09:27:30,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:30,990 INFO L130 PetriNetUnfolder]: 754/2065 cut-off events. [2022-11-20 09:27:30,990 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 09:27:31,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 2065 events. 754/2065 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12920 event pairs, 753 based on Foata normal form. 36/1939 useless extension candidates. Maximal degree in co-relation 3064. Up to 1339 conditions per place. [2022-11-20 09:27:31,011 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 71 selfloop transitions, 5 changer transitions 17/215 dead transitions. [2022-11-20 09:27:31,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 215 transitions, 596 flow [2022-11-20 09:27:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2022-11-20 09:27:31,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6680972818311874 [2022-11-20 09:27:31,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2022-11-20 09:27:31,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2022-11-20 09:27:31,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:31,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2022-11-20 09:27:31,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:31,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:31,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:31,065 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 472 flow. Second operand 6 states and 934 transitions. [2022-11-20 09:27:31,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 215 transitions, 596 flow [2022-11-20 09:27:31,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 215 transitions, 588 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:27:31,078 INFO L231 Difference]: Finished difference. Result has 221 places, 198 transitions, 410 flow [2022-11-20 09:27:31,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=221, PETRI_TRANSITIONS=198} [2022-11-20 09:27:31,085 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -10 predicate places. [2022-11-20 09:27:31,086 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 198 transitions, 410 flow [2022-11-20 09:27:31,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:31,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:31,087 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:31,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:31,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:31,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1481587897, now seen corresponding path program 1 times [2022-11-20 09:27:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:31,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409256073] [2022-11-20 09:27:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:31,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:31,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409256073] [2022-11-20 09:27:31,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409256073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:31,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:31,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:31,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191920867] [2022-11-20 09:27:31,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:31,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:31,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-20 09:27:31,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 198 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:31,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:31,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-20 09:27:31,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:32,496 INFO L130 PetriNetUnfolder]: 730/1783 cut-off events. [2022-11-20 09:27:32,497 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:27:32,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 1783 events. 730/1783 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10726 event pairs, 729 based on Foata normal form. 0/1658 useless extension candidates. Maximal degree in co-relation 3035. Up to 1297 conditions per place. [2022-11-20 09:27:32,509 INFO L137 encePairwiseOnDemand]: 227/233 looper letters, 70 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2022-11-20 09:27:32,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 197 transitions, 558 flow [2022-11-20 09:27:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:32,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2022-11-20 09:27:32,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6595135908440629 [2022-11-20 09:27:32,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 922 transitions. [2022-11-20 09:27:32,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 922 transitions. [2022-11-20 09:27:32,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:32,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 922 transitions. [2022-11-20 09:27:32,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:32,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:32,521 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:32,521 INFO L175 Difference]: Start difference. First operand has 221 places, 198 transitions, 410 flow. Second operand 6 states and 922 transitions. [2022-11-20 09:27:32,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 197 transitions, 558 flow [2022-11-20 09:27:32,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 197 transitions, 548 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:27:32,533 INFO L231 Difference]: Finished difference. Result has 203 places, 197 transitions, 408 flow [2022-11-20 09:27:32,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=203, PETRI_TRANSITIONS=197} [2022-11-20 09:27:32,534 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -28 predicate places. [2022-11-20 09:27:32,534 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 197 transitions, 408 flow [2022-11-20 09:27:32,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:32,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:32,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:32,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:32,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:32,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2035216466, now seen corresponding path program 1 times [2022-11-20 09:27:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:32,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471304469] [2022-11-20 09:27:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:32,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:33,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471304469] [2022-11-20 09:27:33,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471304469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:33,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:33,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:33,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362336747] [2022-11-20 09:27:33,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:33,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:33,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:33,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:33,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:33,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-20 09:27:33,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 197 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:33,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:33,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-20 09:27:33,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:34,165 INFO L130 PetriNetUnfolder]: 1006/2264 cut-off events. [2022-11-20 09:27:34,165 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:27:34,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 2264 events. 1006/2264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13868 event pairs, 807 based on Foata normal form. 0/2136 useless extension candidates. Maximal degree in co-relation 3970. Up to 1667 conditions per place. [2022-11-20 09:27:34,180 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 78 selfloop transitions, 30 changer transitions 0/226 dead transitions. [2022-11-20 09:27:34,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 226 transitions, 682 flow [2022-11-20 09:27:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-20 09:27:34,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-20 09:27:34,185 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-20 09:27:34,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-20 09:27:34,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:34,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-20 09:27:34,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,192 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,192 INFO L175 Difference]: Start difference. First operand has 203 places, 197 transitions, 408 flow. Second operand 6 states and 919 transitions. [2022-11-20 09:27:34,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 226 transitions, 682 flow [2022-11-20 09:27:34,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 226 transitions, 672 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:27:34,198 INFO L231 Difference]: Finished difference. Result has 208 places, 226 transitions, 600 flow [2022-11-20 09:27:34,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=208, PETRI_TRANSITIONS=226} [2022-11-20 09:27:34,201 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -23 predicate places. [2022-11-20 09:27:34,201 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 226 transitions, 600 flow [2022-11-20 09:27:34,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:34,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:34,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1340023378, now seen corresponding path program 1 times [2022-11-20 09:27:34,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:34,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749629513] [2022-11-20 09:27:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:34,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:34,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749629513] [2022-11-20 09:27:34,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749629513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:34,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:34,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:34,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604262097] [2022-11-20 09:27:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:34,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:34,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:34,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:34,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:34,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-20 09:27:34,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 226 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:34,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-20 09:27:34,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:34,850 INFO L130 PetriNetUnfolder]: 437/1855 cut-off events. [2022-11-20 09:27:34,850 INFO L131 PetriNetUnfolder]: For 493/525 co-relation queries the response was YES. [2022-11-20 09:27:34,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1855 events. 437/1855 cut-off events. For 493/525 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 12569 event pairs, 252 based on Foata normal form. 0/1751 useless extension candidates. Maximal degree in co-relation 2113. Up to 578 conditions per place. [2022-11-20 09:27:34,865 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 46 selfloop transitions, 4 changer transitions 0/231 dead transitions. [2022-11-20 09:27:34,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 231 transitions, 710 flow [2022-11-20 09:27:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1215 transitions. [2022-11-20 09:27:34,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869098712446352 [2022-11-20 09:27:34,869 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1215 transitions. [2022-11-20 09:27:34,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1215 transitions. [2022-11-20 09:27:34,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:34,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1215 transitions. [2022-11-20 09:27:34,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.5) internal successors, (1215), 6 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,877 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,877 INFO L175 Difference]: Start difference. First operand has 208 places, 226 transitions, 600 flow. Second operand 6 states and 1215 transitions. [2022-11-20 09:27:34,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 231 transitions, 710 flow [2022-11-20 09:27:34,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 231 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:27:34,886 INFO L231 Difference]: Finished difference. Result has 217 places, 229 transitions, 629 flow [2022-11-20 09:27:34,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=629, PETRI_PLACES=217, PETRI_TRANSITIONS=229} [2022-11-20 09:27:34,887 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -14 predicate places. [2022-11-20 09:27:34,888 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 229 transitions, 629 flow [2022-11-20 09:27:34,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:34,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:34,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:34,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:34,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:34,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash 732312171, now seen corresponding path program 1 times [2022-11-20 09:27:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:34,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019116346] [2022-11-20 09:27:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:34,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:35,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019116346] [2022-11-20 09:27:35,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019116346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:35,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:35,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:35,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452634931] [2022-11-20 09:27:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:35,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:35,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-20 09:27:35,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 229 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:35,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:35,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-20 09:27:35,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:36,466 INFO L130 PetriNetUnfolder]: 1135/2475 cut-off events. [2022-11-20 09:27:36,467 INFO L131 PetriNetUnfolder]: For 843/849 co-relation queries the response was YES. [2022-11-20 09:27:36,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6056 conditions, 2475 events. 1135/2475 cut-off events. For 843/849 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 14767 event pairs, 741 based on Foata normal form. 0/2370 useless extension candidates. Maximal degree in co-relation 5953. Up to 1872 conditions per place. [2022-11-20 09:27:36,486 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 106 selfloop transitions, 30 changer transitions 0/258 dead transitions. [2022-11-20 09:27:36,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 258 transitions, 1007 flow [2022-11-20 09:27:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:36,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-20 09:27:36,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-20 09:27:36,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-20 09:27:36,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-20 09:27:36,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:36,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-20 09:27:36,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:36,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:36,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:36,496 INFO L175 Difference]: Start difference. First operand has 217 places, 229 transitions, 629 flow. Second operand 6 states and 919 transitions. [2022-11-20 09:27:36,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 258 transitions, 1007 flow [2022-11-20 09:27:36,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 258 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:27:36,505 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 878 flow [2022-11-20 09:27:36,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2022-11-20 09:27:36,506 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -5 predicate places. [2022-11-20 09:27:36,507 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 878 flow [2022-11-20 09:27:36,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:36,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:36,508 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:36,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:36,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:36,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1678995988, now seen corresponding path program 1 times [2022-11-20 09:27:36,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:36,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109997493] [2022-11-20 09:27:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:36,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:37,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:37,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109997493] [2022-11-20 09:27:37,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109997493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:37,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:37,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:37,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899439728] [2022-11-20 09:27:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:37,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:37,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:37,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 233 [2022-11-20 09:27:37,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:37,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:37,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 233 [2022-11-20 09:27:37,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:38,135 INFO L130 PetriNetUnfolder]: 1126/2631 cut-off events. [2022-11-20 09:27:38,135 INFO L131 PetriNetUnfolder]: For 2174/2336 co-relation queries the response was YES. [2022-11-20 09:27:38,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7672 conditions, 2631 events. 1126/2631 cut-off events. For 2174/2336 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 16309 event pairs, 530 based on Foata normal form. 0/2534 useless extension candidates. Maximal degree in co-relation 5550. Up to 1779 conditions per place. [2022-11-20 09:27:38,163 INFO L137 encePairwiseOnDemand]: 222/233 looper letters, 154 selfloop transitions, 22 changer transitions 0/307 dead transitions. [2022-11-20 09:27:38,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 307 transitions, 1430 flow [2022-11-20 09:27:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 991 transitions. [2022-11-20 09:27:38,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7088698140200286 [2022-11-20 09:27:38,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 991 transitions. [2022-11-20 09:27:38,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 991 transitions. [2022-11-20 09:27:38,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:38,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 991 transitions. [2022-11-20 09:27:38,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:38,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:38,173 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:38,173 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 878 flow. Second operand 6 states and 991 transitions. [2022-11-20 09:27:38,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 307 transitions, 1430 flow [2022-11-20 09:27:38,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 307 transitions, 1382 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-20 09:27:38,186 INFO L231 Difference]: Finished difference. Result has 236 places, 279 transitions, 1048 flow [2022-11-20 09:27:38,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=236, PETRI_TRANSITIONS=279} [2022-11-20 09:27:38,188 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 5 predicate places. [2022-11-20 09:27:38,188 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 279 transitions, 1048 flow [2022-11-20 09:27:38,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:38,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:38,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:38,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:27:38,190 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:38,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2086448423, now seen corresponding path program 1 times [2022-11-20 09:27:38,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:38,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928070672] [2022-11-20 09:27:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:38,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:38,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928070672] [2022-11-20 09:27:38,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928070672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:38,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:38,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:38,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135759252] [2022-11-20 09:27:38,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:38,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:38,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:38,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 233 [2022-11-20 09:27:38,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 279 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:38,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:38,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 233 [2022-11-20 09:27:38,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:39,960 INFO L130 PetriNetUnfolder]: 1451/3262 cut-off events. [2022-11-20 09:27:39,960 INFO L131 PetriNetUnfolder]: For 3967/3993 co-relation queries the response was YES. [2022-11-20 09:27:39,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 3262 events. 1451/3262 cut-off events. For 3967/3993 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 20416 event pairs, 516 based on Foata normal form. 0/3174 useless extension candidates. Maximal degree in co-relation 8939. Up to 2193 conditions per place. [2022-11-20 09:27:39,992 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 162 selfloop transitions, 27 changer transitions 0/314 dead transitions. [2022-11-20 09:27:39,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 314 transitions, 1630 flow [2022-11-20 09:27:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 936 transitions. [2022-11-20 09:27:39,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695278969957081 [2022-11-20 09:27:39,996 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 936 transitions. [2022-11-20 09:27:39,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 936 transitions. [2022-11-20 09:27:39,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:39,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 936 transitions. [2022-11-20 09:27:39,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,003 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,003 INFO L175 Difference]: Start difference. First operand has 236 places, 279 transitions, 1048 flow. Second operand 6 states and 936 transitions. [2022-11-20 09:27:40,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 314 transitions, 1630 flow [2022-11-20 09:27:40,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 314 transitions, 1630 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:27:40,018 INFO L231 Difference]: Finished difference. Result has 245 places, 299 transitions, 1318 flow [2022-11-20 09:27:40,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=245, PETRI_TRANSITIONS=299} [2022-11-20 09:27:40,020 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 14 predicate places. [2022-11-20 09:27:40,020 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 299 transitions, 1318 flow [2022-11-20 09:27:40,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:40,021 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:40,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:27:40,021 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:40,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1548913032, now seen corresponding path program 1 times [2022-11-20 09:27:40,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:40,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432786062] [2022-11-20 09:27:40,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:40,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:40,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:40,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432786062] [2022-11-20 09:27:40,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432786062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:40,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:40,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81321594] [2022-11-20 09:27:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:40,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:40,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:40,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:40,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-20 09:27:40,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 299 transitions, 1318 flow. Second operand has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:40,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-20 09:27:40,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:40,589 INFO L130 PetriNetUnfolder]: 300/1086 cut-off events. [2022-11-20 09:27:40,589 INFO L131 PetriNetUnfolder]: For 2110/2158 co-relation queries the response was YES. [2022-11-20 09:27:40,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1086 events. 300/1086 cut-off events. For 2110/2158 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5649 event pairs, 15 based on Foata normal form. 16/1082 useless extension candidates. Maximal degree in co-relation 3040. Up to 344 conditions per place. [2022-11-20 09:27:40,603 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 61 selfloop transitions, 4 changer transitions 1/243 dead transitions. [2022-11-20 09:27:40,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 243 transitions, 1104 flow [2022-11-20 09:27:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:27:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-20 09:27:40,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8855507868383404 [2022-11-20 09:27:40,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-20 09:27:40,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-20 09:27:40,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:40,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-20 09:27:40,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,616 INFO L175 Difference]: Start difference. First operand has 245 places, 299 transitions, 1318 flow. Second operand 6 states and 1238 transitions. [2022-11-20 09:27:40,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 243 transitions, 1104 flow [2022-11-20 09:27:40,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 243 transitions, 1032 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-20 09:27:40,626 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 701 flow [2022-11-20 09:27:40,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=701, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2022-11-20 09:27:40,629 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -7 predicate places. [2022-11-20 09:27:40,630 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 701 flow [2022-11-20 09:27:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:40,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:40,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:40,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:27:40,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1384163158, now seen corresponding path program 1 times [2022-11-20 09:27:40,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:40,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695690239] [2022-11-20 09:27:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:40,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:42,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695690239] [2022-11-20 09:27:42,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695690239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:42,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:42,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:27:42,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482054117] [2022-11-20 09:27:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:42,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:27:42,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:42,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:27:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:27:42,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:27:42,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 701 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:42,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:42,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:27:42,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:48,149 INFO L130 PetriNetUnfolder]: 1004/2176 cut-off events. [2022-11-20 09:27:48,149 INFO L131 PetriNetUnfolder]: For 3363/3363 co-relation queries the response was YES. [2022-11-20 09:27:48,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 2176 events. 1004/2176 cut-off events. For 3363/3363 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11562 event pairs, 326 based on Foata normal form. 8/2143 useless extension candidates. Maximal degree in co-relation 7068. Up to 1022 conditions per place. [2022-11-20 09:27:48,169 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 207 selfloop transitions, 106 changer transitions 0/420 dead transitions. [2022-11-20 09:27:48,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 420 transitions, 2327 flow [2022-11-20 09:27:48,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 09:27:48,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-20 09:27:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3745 transitions. [2022-11-20 09:27:48,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5740343347639485 [2022-11-20 09:27:48,181 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3745 transitions. [2022-11-20 09:27:48,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3745 transitions. [2022-11-20 09:27:48,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:48,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3745 transitions. [2022-11-20 09:27:48,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 133.75) internal successors, (3745), 28 states have internal predecessors, (3745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,209 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,210 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 701 flow. Second operand 28 states and 3745 transitions. [2022-11-20 09:27:48,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 420 transitions, 2327 flow [2022-11-20 09:27:48,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 420 transitions, 2299 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-20 09:27:48,229 INFO L231 Difference]: Finished difference. Result has 261 places, 299 transitions, 1675 flow [2022-11-20 09:27:48,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1675, PETRI_PLACES=261, PETRI_TRANSITIONS=299} [2022-11-20 09:27:48,230 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 30 predicate places. [2022-11-20 09:27:48,231 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 299 transitions, 1675 flow [2022-11-20 09:27:48,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:48,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:48,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:27:48,233 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -691633080, now seen corresponding path program 2 times [2022-11-20 09:27:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858343588] [2022-11-20 09:27:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:51,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:51,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858343588] [2022-11-20 09:27:51,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858343588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:51,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:51,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:27:51,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636933755] [2022-11-20 09:27:51,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:51,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:27:51,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:51,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:27:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:27:51,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:27:51,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 299 transitions, 1675 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:51,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:51,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:27:51,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:54,006 INFO L130 PetriNetUnfolder]: 1092/2226 cut-off events. [2022-11-20 09:27:54,007 INFO L131 PetriNetUnfolder]: For 8035/8041 co-relation queries the response was YES. [2022-11-20 09:27:54,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10034 conditions, 2226 events. 1092/2226 cut-off events. For 8035/8041 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11861 event pairs, 59 based on Foata normal form. 8/2207 useless extension candidates. Maximal degree in co-relation 9751. Up to 868 conditions per place. [2022-11-20 09:27:54,032 INFO L137 encePairwiseOnDemand]: 214/233 looper letters, 331 selfloop transitions, 96 changer transitions 0/534 dead transitions. [2022-11-20 09:27:54,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 534 transitions, 4243 flow [2022-11-20 09:27:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:27:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:27:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2711 transitions. [2022-11-20 09:27:54,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5817596566523605 [2022-11-20 09:27:54,042 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2711 transitions. [2022-11-20 09:27:54,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2711 transitions. [2022-11-20 09:27:54,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:54,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2711 transitions. [2022-11-20 09:27:54,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.55) internal successors, (2711), 20 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:54,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:54,075 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:54,075 INFO L175 Difference]: Start difference. First operand has 261 places, 299 transitions, 1675 flow. Second operand 20 states and 2711 transitions. [2022-11-20 09:27:54,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 534 transitions, 4243 flow [2022-11-20 09:27:54,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 534 transitions, 4202 flow, removed 15 selfloop flow, removed 6 redundant places. [2022-11-20 09:27:54,137 INFO L231 Difference]: Finished difference. Result has 283 places, 362 transitions, 2691 flow [2022-11-20 09:27:54,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2691, PETRI_PLACES=283, PETRI_TRANSITIONS=362} [2022-11-20 09:27:54,141 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 52 predicate places. [2022-11-20 09:27:54,141 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 362 transitions, 2691 flow [2022-11-20 09:27:54,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:54,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:54,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:54,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:27:54,146 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:27:54,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1881152184, now seen corresponding path program 3 times [2022-11-20 09:27:54,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:54,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450531418] [2022-11-20 09:27:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:54,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:56,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:56,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450531418] [2022-11-20 09:27:56,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450531418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:56,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:56,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:27:56,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702780012] [2022-11-20 09:27:56,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:56,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:27:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:27:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:27:56,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:27:56,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 362 transitions, 2691 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:56,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:56,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:27:56,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:00,015 INFO L130 PetriNetUnfolder]: 1176/2386 cut-off events. [2022-11-20 09:28:00,015 INFO L131 PetriNetUnfolder]: For 15842/15848 co-relation queries the response was YES. [2022-11-20 09:28:00,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12939 conditions, 2386 events. 1176/2386 cut-off events. For 15842/15848 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12718 event pairs, 106 based on Foata normal form. 8/2358 useless extension candidates. Maximal degree in co-relation 12641. Up to 1407 conditions per place. [2022-11-20 09:28:00,048 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 307 selfloop transitions, 112 changer transitions 0/526 dead transitions. [2022-11-20 09:28:00,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 526 transitions, 4834 flow [2022-11-20 09:28:00,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 09:28:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 09:28:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2327 transitions. [2022-11-20 09:28:00,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5874779096187831 [2022-11-20 09:28:00,056 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2327 transitions. [2022-11-20 09:28:00,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2327 transitions. [2022-11-20 09:28:00,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:00,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2327 transitions. [2022-11-20 09:28:00,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.88235294117646) internal successors, (2327), 17 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:00,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:00,073 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:00,074 INFO L175 Difference]: Start difference. First operand has 283 places, 362 transitions, 2691 flow. Second operand 17 states and 2327 transitions. [2022-11-20 09:28:00,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 526 transitions, 4834 flow [2022-11-20 09:28:00,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 526 transitions, 4717 flow, removed 27 selfloop flow, removed 9 redundant places. [2022-11-20 09:28:00,170 INFO L231 Difference]: Finished difference. Result has 298 places, 416 transitions, 3892 flow [2022-11-20 09:28:00,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3892, PETRI_PLACES=298, PETRI_TRANSITIONS=416} [2022-11-20 09:28:00,171 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 67 predicate places. [2022-11-20 09:28:00,172 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 416 transitions, 3892 flow [2022-11-20 09:28:00,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:00,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:00,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:00,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:28:00,174 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:00,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:00,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1546345088, now seen corresponding path program 4 times [2022-11-20 09:28:00,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:00,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661039445] [2022-11-20 09:28:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:00,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:02,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:02,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661039445] [2022-11-20 09:28:02,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661039445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:02,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:02,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:02,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644468644] [2022-11-20 09:28:02,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:02,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:02,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:02,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:02,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:02,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:02,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 416 transitions, 3892 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:02,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:02,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:02,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:05,949 INFO L130 PetriNetUnfolder]: 1398/2828 cut-off events. [2022-11-20 09:28:05,949 INFO L131 PetriNetUnfolder]: For 26793/26853 co-relation queries the response was YES. [2022-11-20 09:28:05,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17188 conditions, 2828 events. 1398/2828 cut-off events. For 26793/26853 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15696 event pairs, 222 based on Foata normal form. 8/2787 useless extension candidates. Maximal degree in co-relation 16877. Up to 1238 conditions per place. [2022-11-20 09:28:05,981 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 365 selfloop transitions, 170 changer transitions 0/642 dead transitions. [2022-11-20 09:28:05,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 642 transitions, 7486 flow [2022-11-20 09:28:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:28:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:28:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-20 09:28:05,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-20 09:28:05,987 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-20 09:28:05,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-20 09:28:05,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:05,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-20 09:28:05,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:06,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:06,003 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:06,003 INFO L175 Difference]: Start difference. First operand has 298 places, 416 transitions, 3892 flow. Second operand 20 states and 2717 transitions. [2022-11-20 09:28:06,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 642 transitions, 7486 flow [2022-11-20 09:28:06,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 642 transitions, 7319 flow, removed 68 selfloop flow, removed 9 redundant places. [2022-11-20 09:28:06,128 INFO L231 Difference]: Finished difference. Result has 315 places, 489 transitions, 5769 flow [2022-11-20 09:28:06,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5769, PETRI_PLACES=315, PETRI_TRANSITIONS=489} [2022-11-20 09:28:06,129 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 84 predicate places. [2022-11-20 09:28:06,130 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 489 transitions, 5769 flow [2022-11-20 09:28:06,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:06,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:06,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:06,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:28:06,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 919703916, now seen corresponding path program 5 times [2022-11-20 09:28:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:06,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094756476] [2022-11-20 09:28:06,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:08,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:08,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094756476] [2022-11-20 09:28:08,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094756476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:08,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:08,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:08,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154629781] [2022-11-20 09:28:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:08,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:08,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:08,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:08,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:08,168 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:08,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 489 transitions, 5769 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:08,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:08,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:08,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:11,116 INFO L130 PetriNetUnfolder]: 1524/2998 cut-off events. [2022-11-20 09:28:11,116 INFO L131 PetriNetUnfolder]: For 43050/43056 co-relation queries the response was YES. [2022-11-20 09:28:11,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21341 conditions, 2998 events. 1524/2998 cut-off events. For 43050/43056 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16945 event pairs, 100 based on Foata normal form. 8/2969 useless extension candidates. Maximal degree in co-relation 21024. Up to 1759 conditions per place. [2022-11-20 09:28:11,155 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 346 selfloop transitions, 200 changer transitions 0/653 dead transitions. [2022-11-20 09:28:11,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 653 transitions, 8561 flow [2022-11-20 09:28:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:28:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 09:28:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-20 09:28:11,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-20 09:28:11,161 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-20 09:28:11,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-20 09:28:11,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:11,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-20 09:28:11,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,174 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,174 INFO L175 Difference]: Start difference. First operand has 315 places, 489 transitions, 5769 flow. Second operand 18 states and 2460 transitions. [2022-11-20 09:28:11,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 653 transitions, 8561 flow [2022-11-20 09:28:11,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 653 transitions, 8234 flow, removed 107 selfloop flow, removed 12 redundant places. [2022-11-20 09:28:11,394 INFO L231 Difference]: Finished difference. Result has 325 places, 533 transitions, 7181 flow [2022-11-20 09:28:11,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=5497, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7181, PETRI_PLACES=325, PETRI_TRANSITIONS=533} [2022-11-20 09:28:11,396 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 94 predicate places. [2022-11-20 09:28:11,396 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 533 transitions, 7181 flow [2022-11-20 09:28:11,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:11,397 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:11,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:28:11,398 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1419346614, now seen corresponding path program 6 times [2022-11-20 09:28:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046160833] [2022-11-20 09:28:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:13,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:13,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046160833] [2022-11-20 09:28:13,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046160833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:13,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:13,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:13,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566928472] [2022-11-20 09:28:13,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:13,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:13,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:13,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:13,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:13,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:13,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 533 transitions, 7181 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:13,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:13,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:13,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:16,465 INFO L130 PetriNetUnfolder]: 1581/3163 cut-off events. [2022-11-20 09:28:16,465 INFO L131 PetriNetUnfolder]: For 53440/53505 co-relation queries the response was YES. [2022-11-20 09:28:16,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23379 conditions, 3163 events. 1581/3163 cut-off events. For 53440/53505 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 18011 event pairs, 233 based on Foata normal form. 8/3123 useless extension candidates. Maximal degree in co-relation 23057. Up to 1472 conditions per place. [2022-11-20 09:28:16,505 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 406 selfloop transitions, 207 changer transitions 0/720 dead transitions. [2022-11-20 09:28:16,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 720 transitions, 10685 flow [2022-11-20 09:28:16,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:28:16,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:28:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-20 09:28:16,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-20 09:28:16,511 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-20 09:28:16,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-20 09:28:16,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:16,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-20 09:28:16,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:16,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:16,525 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:16,525 INFO L175 Difference]: Start difference. First operand has 325 places, 533 transitions, 7181 flow. Second operand 20 states and 2716 transitions. [2022-11-20 09:28:16,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 720 transitions, 10685 flow [2022-11-20 09:28:16,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 720 transitions, 10401 flow, removed 78 selfloop flow, removed 11 redundant places. [2022-11-20 09:28:16,748 INFO L231 Difference]: Finished difference. Result has 339 places, 565 transitions, 8248 flow [2022-11-20 09:28:16,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=6966, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8248, PETRI_PLACES=339, PETRI_TRANSITIONS=565} [2022-11-20 09:28:16,749 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 108 predicate places. [2022-11-20 09:28:16,750 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 565 transitions, 8248 flow [2022-11-20 09:28:16,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:16,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:16,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:16,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:28:16,751 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:16,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:16,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1617657770, now seen corresponding path program 7 times [2022-11-20 09:28:16,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:16,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818276917] [2022-11-20 09:28:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:18,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818276917] [2022-11-20 09:28:18,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818276917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:18,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:18,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730054438] [2022-11-20 09:28:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:18,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:18,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 565 transitions, 8248 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:18,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:18,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:18,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:21,400 INFO L130 PetriNetUnfolder]: 1759/3491 cut-off events. [2022-11-20 09:28:21,401 INFO L131 PetriNetUnfolder]: For 65212/65236 co-relation queries the response was YES. [2022-11-20 09:28:21,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28124 conditions, 3491 events. 1759/3491 cut-off events. For 65212/65236 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20456 event pairs, 368 based on Foata normal form. 8/3455 useless extension candidates. Maximal degree in co-relation 27796. Up to 2015 conditions per place. [2022-11-20 09:28:21,442 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 378 selfloop transitions, 270 changer transitions 0/755 dead transitions. [2022-11-20 09:28:21,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 755 transitions, 12222 flow [2022-11-20 09:28:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:28:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 09:28:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-20 09:28:21,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-20 09:28:21,447 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-20 09:28:21,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-20 09:28:21,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:21,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-20 09:28:21,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:21,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:21,460 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:21,460 INFO L175 Difference]: Start difference. First operand has 339 places, 565 transitions, 8248 flow. Second operand 18 states and 2460 transitions. [2022-11-20 09:28:21,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 755 transitions, 12222 flow [2022-11-20 09:28:21,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 755 transitions, 12036 flow, removed 33 selfloop flow, removed 12 redundant places. [2022-11-20 09:28:21,849 INFO L231 Difference]: Finished difference. Result has 351 places, 645 transitions, 11171 flow [2022-11-20 09:28:21,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=8080, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11171, PETRI_PLACES=351, PETRI_TRANSITIONS=645} [2022-11-20 09:28:21,850 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 120 predicate places. [2022-11-20 09:28:21,850 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 645 transitions, 11171 flow [2022-11-20 09:28:21,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:21,851 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:21,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:21,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:28:21,852 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash -666726578, now seen corresponding path program 8 times [2022-11-20 09:28:21,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:21,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463559993] [2022-11-20 09:28:21,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:21,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:23,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:23,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463559993] [2022-11-20 09:28:23,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463559993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:23,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:23,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:23,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687369582] [2022-11-20 09:28:23,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:23,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:23,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:23,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:23,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 645 transitions, 11171 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:23,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:23,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:27,051 INFO L130 PetriNetUnfolder]: 1795/3577 cut-off events. [2022-11-20 09:28:27,051 INFO L131 PetriNetUnfolder]: For 83303/83339 co-relation queries the response was YES. [2022-11-20 09:28:27,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30827 conditions, 3577 events. 1795/3577 cut-off events. For 83303/83339 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 21131 event pairs, 202 based on Foata normal form. 8/3547 useless extension candidates. Maximal degree in co-relation 30492. Up to 1770 conditions per place. [2022-11-20 09:28:27,087 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 448 selfloop transitions, 262 changer transitions 0/817 dead transitions. [2022-11-20 09:28:27,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 817 transitions, 14907 flow [2022-11-20 09:28:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:28:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 09:28:27,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-20 09:28:27,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-20 09:28:27,095 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-20 09:28:27,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-20 09:28:27,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:27,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-20 09:28:27,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,110 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,111 INFO L175 Difference]: Start difference. First operand has 351 places, 645 transitions, 11171 flow. Second operand 19 states and 2583 transitions. [2022-11-20 09:28:27,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 817 transitions, 14907 flow [2022-11-20 09:28:27,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 817 transitions, 14485 flow, removed 185 selfloop flow, removed 9 redundant places. [2022-11-20 09:28:27,453 INFO L231 Difference]: Finished difference. Result has 365 places, 664 transitions, 12314 flow [2022-11-20 09:28:27,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=10862, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12314, PETRI_PLACES=365, PETRI_TRANSITIONS=664} [2022-11-20 09:28:27,455 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 134 predicate places. [2022-11-20 09:28:27,455 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 664 transitions, 12314 flow [2022-11-20 09:28:27,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:27,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:27,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:28:27,457 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:27,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1349569800, now seen corresponding path program 9 times [2022-11-20 09:28:27,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:27,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357726717] [2022-11-20 09:28:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:27,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:28,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:28,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357726717] [2022-11-20 09:28:28,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357726717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:28,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:28,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:28,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453884667] [2022-11-20 09:28:28,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:28,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:28,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:28,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:28,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:28,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:28,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 664 transitions, 12314 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:28,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:28,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:31,886 INFO L130 PetriNetUnfolder]: 1986/3866 cut-off events. [2022-11-20 09:28:31,886 INFO L131 PetriNetUnfolder]: For 103025/103049 co-relation queries the response was YES. [2022-11-20 09:28:31,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35943 conditions, 3866 events. 1986/3866 cut-off events. For 103025/103049 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 23119 event pairs, 176 based on Foata normal form. 8/3837 useless extension candidates. Maximal degree in co-relation 35603. Up to 2366 conditions per place. [2022-11-20 09:28:31,927 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 456 selfloop transitions, 293 changer transitions 0/856 dead transitions. [2022-11-20 09:28:31,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 856 transitions, 16800 flow [2022-11-20 09:28:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:28:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 09:28:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2022-11-20 09:28:31,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5855984740104911 [2022-11-20 09:28:31,933 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2022-11-20 09:28:31,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2022-11-20 09:28:31,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:31,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2022-11-20 09:28:31,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.44444444444446) internal successors, (2456), 18 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:31,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:31,946 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:31,946 INFO L175 Difference]: Start difference. First operand has 365 places, 664 transitions, 12314 flow. Second operand 18 states and 2456 transitions. [2022-11-20 09:28:31,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 856 transitions, 16800 flow [2022-11-20 09:28:32,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 856 transitions, 16668 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-11-20 09:28:32,528 INFO L231 Difference]: Finished difference. Result has 377 places, 730 transitions, 15362 flow [2022-11-20 09:28:32,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=12188, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15362, PETRI_PLACES=377, PETRI_TRANSITIONS=730} [2022-11-20 09:28:32,529 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 146 predicate places. [2022-11-20 09:28:32,529 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 730 transitions, 15362 flow [2022-11-20 09:28:32,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:32,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:32,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:28:32,531 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash -269432630, now seen corresponding path program 10 times [2022-11-20 09:28:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:32,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260056445] [2022-11-20 09:28:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:34,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:34,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260056445] [2022-11-20 09:28:34,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260056445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:34,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:34,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:34,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824363857] [2022-11-20 09:28:34,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:34,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:34,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:34,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:34,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:34,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 730 transitions, 15362 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:34,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:34,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:34,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:38,815 INFO L130 PetriNetUnfolder]: 2164/4150 cut-off events. [2022-11-20 09:28:38,816 INFO L131 PetriNetUnfolder]: For 137280/137286 co-relation queries the response was YES. [2022-11-20 09:28:38,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41996 conditions, 4150 events. 2164/4150 cut-off events. For 137280/137286 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 25263 event pairs, 140 based on Foata normal form. 8/4121 useless extension candidates. Maximal degree in co-relation 41649. Up to 2221 conditions per place. [2022-11-20 09:28:38,864 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 421 selfloop transitions, 425 changer transitions 0/953 dead transitions. [2022-11-20 09:28:38,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 953 transitions, 21070 flow [2022-11-20 09:28:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:28:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:28:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-20 09:28:38,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-20 09:28:38,873 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-20 09:28:38,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-20 09:28:38,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:38,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-20 09:28:38,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:38,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:38,887 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:38,887 INFO L175 Difference]: Start difference. First operand has 377 places, 730 transitions, 15362 flow. Second operand 20 states and 2716 transitions. [2022-11-20 09:28:38,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 953 transitions, 21070 flow [2022-11-20 09:28:39,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 953 transitions, 20901 flow, removed 56 selfloop flow, removed 10 redundant places. [2022-11-20 09:28:39,562 INFO L231 Difference]: Finished difference. Result has 396 places, 833 transitions, 19753 flow [2022-11-20 09:28:39,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=15220, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19753, PETRI_PLACES=396, PETRI_TRANSITIONS=833} [2022-11-20 09:28:39,564 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 165 predicate places. [2022-11-20 09:28:39,564 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 833 transitions, 19753 flow [2022-11-20 09:28:39,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:39,565 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:39,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:28:39,565 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:39,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1312992744, now seen corresponding path program 11 times [2022-11-20 09:28:39,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:39,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932215858] [2022-11-20 09:28:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:39,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:41,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:41,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932215858] [2022-11-20 09:28:41,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932215858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:41,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:41,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:41,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182379727] [2022-11-20 09:28:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:41,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:41,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:41,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:41,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:41,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 833 transitions, 19753 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:41,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:41,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:46,035 INFO L130 PetriNetUnfolder]: 2165/4247 cut-off events. [2022-11-20 09:28:46,035 INFO L131 PetriNetUnfolder]: For 155145/155181 co-relation queries the response was YES. [2022-11-20 09:28:46,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45115 conditions, 4247 events. 2165/4247 cut-off events. For 155145/155181 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26333 event pairs, 204 based on Foata normal form. 8/4217 useless extension candidates. Maximal degree in co-relation 44758. Up to 2167 conditions per place. [2022-11-20 09:28:46,078 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 541 selfloop transitions, 337 changer transitions 0/985 dead transitions. [2022-11-20 09:28:46,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 985 transitions, 23316 flow [2022-11-20 09:28:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:28:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:28:46,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-20 09:28:46,086 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-20 09:28:46,086 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-20 09:28:46,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-20 09:28:46,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:46,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-20 09:28:46,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,100 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,100 INFO L175 Difference]: Start difference. First operand has 396 places, 833 transitions, 19753 flow. Second operand 20 states and 2713 transitions. [2022-11-20 09:28:46,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 985 transitions, 23316 flow [2022-11-20 09:28:46,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 985 transitions, 22728 flow, removed 281 selfloop flow, removed 8 redundant places. [2022-11-20 09:28:46,866 INFO L231 Difference]: Finished difference. Result has 411 places, 851 transitions, 20661 flow [2022-11-20 09:28:46,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=19185, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20661, PETRI_PLACES=411, PETRI_TRANSITIONS=851} [2022-11-20 09:28:46,867 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 180 predicate places. [2022-11-20 09:28:46,867 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 851 transitions, 20661 flow [2022-11-20 09:28:46,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:46,868 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:46,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:28:46,868 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:46,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1133853688, now seen corresponding path program 12 times [2022-11-20 09:28:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:46,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722456643] [2022-11-20 09:28:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:46,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:48,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722456643] [2022-11-20 09:28:48,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722456643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:48,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:48,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:48,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64456950] [2022-11-20 09:28:48,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:48,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:48,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:48,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:48,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 851 transitions, 20661 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:48,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:48,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:48,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:53,122 INFO L130 PetriNetUnfolder]: 2248/4382 cut-off events. [2022-11-20 09:28:53,122 INFO L131 PetriNetUnfolder]: For 168790/168831 co-relation queries the response was YES. [2022-11-20 09:28:53,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48010 conditions, 4382 events. 2248/4382 cut-off events. For 168790/168831 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 27386 event pairs, 365 based on Foata normal form. 10/4347 useless extension candidates. Maximal degree in co-relation 47649. Up to 2681 conditions per place. [2022-11-20 09:28:53,181 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 543 selfloop transitions, 358 changer transitions 0/1008 dead transitions. [2022-11-20 09:28:53,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1008 transitions, 24679 flow [2022-11-20 09:28:53,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:28:53,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:28:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2714 transitions. [2022-11-20 09:28:53,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824034334763949 [2022-11-20 09:28:53,186 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2714 transitions. [2022-11-20 09:28:53,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2714 transitions. [2022-11-20 09:28:53,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:53,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2714 transitions. [2022-11-20 09:28:53,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.7) internal successors, (2714), 20 states have internal predecessors, (2714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:53,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:53,206 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:53,206 INFO L175 Difference]: Start difference. First operand has 411 places, 851 transitions, 20661 flow. Second operand 20 states and 2714 transitions. [2022-11-20 09:28:53,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1008 transitions, 24679 flow [2022-11-20 09:28:54,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1008 transitions, 24448 flow, removed 35 selfloop flow, removed 14 redundant places. [2022-11-20 09:28:54,207 INFO L231 Difference]: Finished difference. Result has 423 places, 890 transitions, 23211 flow [2022-11-20 09:28:54,207 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=20433, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23211, PETRI_PLACES=423, PETRI_TRANSITIONS=890} [2022-11-20 09:28:54,208 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 192 predicate places. [2022-11-20 09:28:54,208 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 890 transitions, 23211 flow [2022-11-20 09:28:54,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:54,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:54,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:54,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:28:54,209 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:28:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -331762210, now seen corresponding path program 13 times [2022-11-20 09:28:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:54,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295073955] [2022-11-20 09:28:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:56,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:56,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295073955] [2022-11-20 09:28:56,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295073955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:56,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:56,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:28:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374946779] [2022-11-20 09:28:56,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:56,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:28:56,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:56,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:28:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:28:56,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:28:56,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 890 transitions, 23211 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:56,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:56,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:28:56,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:00,932 INFO L130 PetriNetUnfolder]: 2388/4586 cut-off events. [2022-11-20 09:29:00,932 INFO L131 PetriNetUnfolder]: For 208893/208917 co-relation queries the response was YES. [2022-11-20 09:29:00,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53689 conditions, 4586 events. 2388/4586 cut-off events. For 208893/208917 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 28714 event pairs, 171 based on Foata normal form. 8/4556 useless extension candidates. Maximal degree in co-relation 53321. Up to 2737 conditions per place. [2022-11-20 09:29:00,992 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 560 selfloop transitions, 404 changer transitions 0/1071 dead transitions. [2022-11-20 09:29:00,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1071 transitions, 28465 flow [2022-11-20 09:29:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:29:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:29:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-20 09:29:00,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-20 09:29:00,996 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-20 09:29:00,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-20 09:29:00,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:00,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-20 09:29:01,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,005 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,006 INFO L175 Difference]: Start difference. First operand has 423 places, 890 transitions, 23211 flow. Second operand 20 states and 2716 transitions. [2022-11-20 09:29:01,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1071 transitions, 28465 flow [2022-11-20 09:29:02,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 1071 transitions, 28115 flow, removed 116 selfloop flow, removed 12 redundant places. [2022-11-20 09:29:02,255 INFO L231 Difference]: Finished difference. Result has 438 places, 954 transitions, 26603 flow [2022-11-20 09:29:02,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=22879, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26603, PETRI_PLACES=438, PETRI_TRANSITIONS=954} [2022-11-20 09:29:02,257 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 207 predicate places. [2022-11-20 09:29:02,257 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 954 transitions, 26603 flow [2022-11-20 09:29:02,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:02,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:02,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:02,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 09:29:02,258 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:02,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:02,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2063315680, now seen corresponding path program 14 times [2022-11-20 09:29:02,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:02,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901365242] [2022-11-20 09:29:02,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:02,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:03,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:03,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901365242] [2022-11-20 09:29:03,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901365242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:03,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:03,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:03,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810017218] [2022-11-20 09:29:03,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:03,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:03,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:03,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:03,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:03,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 954 transitions, 26603 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:03,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:03,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:03,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:08,547 INFO L130 PetriNetUnfolder]: 2481/4741 cut-off events. [2022-11-20 09:29:08,548 INFO L131 PetriNetUnfolder]: For 247296/247320 co-relation queries the response was YES. [2022-11-20 09:29:08,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58974 conditions, 4741 events. 2481/4741 cut-off events. For 247296/247320 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 30094 event pairs, 194 based on Foata normal form. 14/4723 useless extension candidates. Maximal degree in co-relation 58598. Up to 3009 conditions per place. [2022-11-20 09:29:08,629 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 584 selfloop transitions, 424 changer transitions 0/1115 dead transitions. [2022-11-20 09:29:08,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1115 transitions, 31593 flow [2022-11-20 09:29:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:29:08,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 09:29:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2585 transitions. [2022-11-20 09:29:08,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839168737293878 [2022-11-20 09:29:08,634 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2585 transitions. [2022-11-20 09:29:08,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2585 transitions. [2022-11-20 09:29:08,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:08,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2585 transitions. [2022-11-20 09:29:08,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.05263157894737) internal successors, (2585), 19 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:08,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:08,645 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:08,646 INFO L175 Difference]: Start difference. First operand has 438 places, 954 transitions, 26603 flow. Second operand 19 states and 2585 transitions. [2022-11-20 09:29:08,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1115 transitions, 31593 flow [2022-11-20 09:29:10,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1115 transitions, 31009 flow, removed 274 selfloop flow, removed 9 redundant places. [2022-11-20 09:29:10,930 INFO L231 Difference]: Finished difference. Result has 454 places, 1007 transitions, 30043 flow [2022-11-20 09:29:10,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=26167, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30043, PETRI_PLACES=454, PETRI_TRANSITIONS=1007} [2022-11-20 09:29:10,931 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 223 predicate places. [2022-11-20 09:29:10,932 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 1007 transitions, 30043 flow [2022-11-20 09:29:10,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:10,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:10,932 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:10,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 09:29:10,933 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1437879406, now seen corresponding path program 15 times [2022-11-20 09:29:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:10,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644415934] [2022-11-20 09:29:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:10,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:12,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644415934] [2022-11-20 09:29:12,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644415934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:12,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:12,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:12,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588442767] [2022-11-20 09:29:12,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:12,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:12,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:12,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:12,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:12,249 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:12,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 1007 transitions, 30043 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:12,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:12,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:12,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:17,267 INFO L130 PetriNetUnfolder]: 2517/4879 cut-off events. [2022-11-20 09:29:17,267 INFO L131 PetriNetUnfolder]: For 272204/272240 co-relation queries the response was YES. [2022-11-20 09:29:17,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61867 conditions, 4879 events. 2517/4879 cut-off events. For 272204/272240 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 31078 event pairs, 437 based on Foata normal form. 8/4843 useless extension candidates. Maximal degree in co-relation 61484. Up to 3047 conditions per place. [2022-11-20 09:29:17,357 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 589 selfloop transitions, 438 changer transitions 0/1134 dead transitions. [2022-11-20 09:29:17,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1134 transitions, 33671 flow [2022-11-20 09:29:17,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:29:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 09:29:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-20 09:29:17,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-20 09:29:17,364 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-20 09:29:17,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-20 09:29:17,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:17,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-20 09:29:17,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:17,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:17,379 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:17,380 INFO L175 Difference]: Start difference. First operand has 454 places, 1007 transitions, 30043 flow. Second operand 19 states and 2583 transitions. [2022-11-20 09:29:17,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1134 transitions, 33671 flow [2022-11-20 09:29:19,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 1134 transitions, 33409 flow, removed 90 selfloop flow, removed 11 redundant places. [2022-11-20 09:29:19,246 INFO L231 Difference]: Finished difference. Result has 467 places, 1029 transitions, 32243 flow [2022-11-20 09:29:19,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=29782, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1007, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32243, PETRI_PLACES=467, PETRI_TRANSITIONS=1029} [2022-11-20 09:29:19,248 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 236 predicate places. [2022-11-20 09:29:19,248 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 1029 transitions, 32243 flow [2022-11-20 09:29:19,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:19,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:19,249 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:19,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 09:29:19,249 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:19,249 INFO L85 PathProgramCache]: Analyzing trace with hash 939966272, now seen corresponding path program 16 times [2022-11-20 09:29:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:19,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078393906] [2022-11-20 09:29:19,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:19,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:20,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:20,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078393906] [2022-11-20 09:29:20,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078393906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:20,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:20,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396380171] [2022-11-20 09:29:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:20,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:20,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:20,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1029 transitions, 32243 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:20,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:20,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:20,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:26,824 INFO L130 PetriNetUnfolder]: 2627/4991 cut-off events. [2022-11-20 09:29:26,824 INFO L131 PetriNetUnfolder]: For 311826/311850 co-relation queries the response was YES. [2022-11-20 09:29:26,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66464 conditions, 4991 events. 2627/4991 cut-off events. For 311826/311850 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 31886 event pairs, 194 based on Foata normal form. 14/4972 useless extension candidates. Maximal degree in co-relation 66075. Up to 3051 conditions per place. [2022-11-20 09:29:26,899 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 590 selfloop transitions, 472 changer transitions 0/1169 dead transitions. [2022-11-20 09:29:26,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1169 transitions, 36189 flow [2022-11-20 09:29:26,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:29:26,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:29:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-20 09:29:26,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-20 09:29:26,904 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-20 09:29:26,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-20 09:29:26,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:26,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-20 09:29:26,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:26,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:26,916 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:26,916 INFO L175 Difference]: Start difference. First operand has 467 places, 1029 transitions, 32243 flow. Second operand 20 states and 2716 transitions. [2022-11-20 09:29:26,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1169 transitions, 36189 flow [2022-11-20 09:29:29,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1169 transitions, 35863 flow, removed 97 selfloop flow, removed 11 redundant places. [2022-11-20 09:29:29,146 INFO L231 Difference]: Finished difference. Result has 479 places, 1056 transitions, 34139 flow [2022-11-20 09:29:29,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=31925, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1029, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34139, PETRI_PLACES=479, PETRI_TRANSITIONS=1056} [2022-11-20 09:29:29,148 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 248 predicate places. [2022-11-20 09:29:29,149 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1056 transitions, 34139 flow [2022-11-20 09:29:29,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:29,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:29,150 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:29,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 09:29:29,150 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash -251932294, now seen corresponding path program 17 times [2022-11-20 09:29:29,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:29,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325879483] [2022-11-20 09:29:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:29,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:30,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325879483] [2022-11-20 09:29:30,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325879483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:30,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:30,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:30,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442250900] [2022-11-20 09:29:30,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:30,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:30,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:30,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:30,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:30,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1056 transitions, 34139 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:30,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:30,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:30,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:37,120 INFO L130 PetriNetUnfolder]: 2628/5070 cut-off events. [2022-11-20 09:29:37,120 INFO L131 PetriNetUnfolder]: For 326212/326248 co-relation queries the response was YES. [2022-11-20 09:29:37,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68587 conditions, 5070 events. 2628/5070 cut-off events. For 326212/326248 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 32522 event pairs, 471 based on Foata normal form. 8/5034 useless extension candidates. Maximal degree in co-relation 68194. Up to 3175 conditions per place. [2022-11-20 09:29:37,194 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 612 selfloop transitions, 464 changer transitions 0/1183 dead transitions. [2022-11-20 09:29:37,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1183 transitions, 37774 flow [2022-11-20 09:29:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:29:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:29:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-20 09:29:37,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-20 09:29:37,199 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-20 09:29:37,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-20 09:29:37,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:37,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-20 09:29:37,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:37,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:37,209 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:37,209 INFO L175 Difference]: Start difference. First operand has 479 places, 1056 transitions, 34139 flow. Second operand 20 states and 2715 transitions. [2022-11-20 09:29:37,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1183 transitions, 37774 flow [2022-11-20 09:29:39,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1183 transitions, 37368 flow, removed 162 selfloop flow, removed 11 redundant places. [2022-11-20 09:29:39,764 INFO L231 Difference]: Finished difference. Result has 491 places, 1076 transitions, 35736 flow [2022-11-20 09:29:39,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=33817, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=35736, PETRI_PLACES=491, PETRI_TRANSITIONS=1076} [2022-11-20 09:29:39,765 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 260 predicate places. [2022-11-20 09:29:39,766 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1076 transitions, 35736 flow [2022-11-20 09:29:39,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:39,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:39,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 09:29:39,767 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:39,768 INFO L85 PathProgramCache]: Analyzing trace with hash -359239554, now seen corresponding path program 18 times [2022-11-20 09:29:39,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:39,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745850062] [2022-11-20 09:29:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:41,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:41,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:41,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745850062] [2022-11-20 09:29:41,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745850062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:41,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:41,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:41,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011767147] [2022-11-20 09:29:41,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:41,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:41,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:41,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1076 transitions, 35736 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:41,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:41,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:41,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:48,232 INFO L130 PetriNetUnfolder]: 2685/5119 cut-off events. [2022-11-20 09:29:48,232 INFO L131 PetriNetUnfolder]: For 348853/348889 co-relation queries the response was YES. [2022-11-20 09:29:48,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71665 conditions, 5119 events. 2685/5119 cut-off events. For 348853/348889 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 32807 event pairs, 195 based on Foata normal form. 10/5091 useless extension candidates. Maximal degree in co-relation 71268. Up to 3181 conditions per place. [2022-11-20 09:29:48,314 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 629 selfloop transitions, 482 changer transitions 0/1218 dead transitions. [2022-11-20 09:29:48,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1218 transitions, 40129 flow [2022-11-20 09:29:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:29:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:29:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-20 09:29:48,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-20 09:29:48,319 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-20 09:29:48,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-20 09:29:48,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:48,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-20 09:29:48,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:48,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:48,329 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:48,330 INFO L175 Difference]: Start difference. First operand has 491 places, 1076 transitions, 35736 flow. Second operand 20 states and 2718 transitions. [2022-11-20 09:29:48,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1218 transitions, 40129 flow [2022-11-20 09:29:51,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 1218 transitions, 39849 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-20 09:29:51,363 INFO L231 Difference]: Finished difference. Result has 502 places, 1108 transitions, 38068 flow [2022-11-20 09:29:51,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=35466, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38068, PETRI_PLACES=502, PETRI_TRANSITIONS=1108} [2022-11-20 09:29:51,364 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 271 predicate places. [2022-11-20 09:29:51,364 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1108 transitions, 38068 flow [2022-11-20 09:29:51,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:51,365 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:51,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 09:29:51,366 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:29:51,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:51,366 INFO L85 PathProgramCache]: Analyzing trace with hash -533536876, now seen corresponding path program 19 times [2022-11-20 09:29:51,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:51,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740539773] [2022-11-20 09:29:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:51,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:53,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740539773] [2022-11-20 09:29:53,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740539773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:53,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:53,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:29:53,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698111904] [2022-11-20 09:29:53,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:53,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:29:53,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:53,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:29:53,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:29:53,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:29:53,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1108 transitions, 38068 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:53,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:53,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:29:53,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:00,072 INFO L130 PetriNetUnfolder]: 2686/5118 cut-off events. [2022-11-20 09:30:00,072 INFO L131 PetriNetUnfolder]: For 365223/365247 co-relation queries the response was YES. [2022-11-20 09:30:00,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73792 conditions, 5118 events. 2686/5118 cut-off events. For 365223/365247 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 32990 event pairs, 206 based on Foata normal form. 14/5099 useless extension candidates. Maximal degree in co-relation 73390. Up to 3247 conditions per place. [2022-11-20 09:30:00,165 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 637 selfloop transitions, 488 changer transitions 0/1232 dead transitions. [2022-11-20 09:30:00,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1232 transitions, 41855 flow [2022-11-20 09:30:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:30:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:30:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-20 09:30:00,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-20 09:30:00,170 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-20 09:30:00,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-20 09:30:00,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-20 09:30:00,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:00,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:00,183 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:00,183 INFO L175 Difference]: Start difference. First operand has 502 places, 1108 transitions, 38068 flow. Second operand 20 states and 2713 transitions. [2022-11-20 09:30:00,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1232 transitions, 41855 flow [2022-11-20 09:30:03,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 1232 transitions, 41218 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-20 09:30:03,522 INFO L231 Difference]: Finished difference. Result has 513 places, 1128 transitions, 39573 flow [2022-11-20 09:30:03,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=37539, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39573, PETRI_PLACES=513, PETRI_TRANSITIONS=1128} [2022-11-20 09:30:03,524 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 282 predicate places. [2022-11-20 09:30:03,524 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1128 transitions, 39573 flow [2022-11-20 09:30:03,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:03,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:03,525 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:03,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 09:30:03,525 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:30:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash -158047366, now seen corresponding path program 20 times [2022-11-20 09:30:03,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:03,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990097368] [2022-11-20 09:30:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:03,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:05,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:05,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990097368] [2022-11-20 09:30:05,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990097368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:05,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:05,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:30:05,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602578606] [2022-11-20 09:30:05,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:05,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:05,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:05,214 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:30:05,216 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1128 transitions, 39573 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:05,216 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:05,216 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:30:05,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:12,608 INFO L130 PetriNetUnfolder]: 2777/5271 cut-off events. [2022-11-20 09:30:12,608 INFO L131 PetriNetUnfolder]: For 391722/391746 co-relation queries the response was YES. [2022-11-20 09:30:12,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77447 conditions, 5271 events. 2777/5271 cut-off events. For 391722/391746 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 34224 event pairs, 316 based on Foata normal form. 11/5247 useless extension candidates. Maximal degree in co-relation 77041. Up to 3219 conditions per place. [2022-11-20 09:30:12,706 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 577 selfloop transitions, 595 changer transitions 0/1279 dead transitions. [2022-11-20 09:30:12,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1279 transitions, 44162 flow [2022-11-20 09:30:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:30:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:30:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-20 09:30:12,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-20 09:30:12,711 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-20 09:30:12,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-20 09:30:12,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:12,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-20 09:30:12,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:12,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:12,721 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:12,721 INFO L175 Difference]: Start difference. First operand has 513 places, 1128 transitions, 39573 flow. Second operand 20 states and 2715 transitions. [2022-11-20 09:30:12,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1279 transitions, 44162 flow [2022-11-20 09:30:16,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1279 transitions, 43969 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-20 09:30:16,233 INFO L231 Difference]: Finished difference. Result has 527 places, 1176 transitions, 43073 flow [2022-11-20 09:30:16,234 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=39380, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43073, PETRI_PLACES=527, PETRI_TRANSITIONS=1176} [2022-11-20 09:30:16,234 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 296 predicate places. [2022-11-20 09:30:16,235 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1176 transitions, 43073 flow [2022-11-20 09:30:16,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:16,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:16,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:16,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 09:30:16,236 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:30:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:16,237 INFO L85 PathProgramCache]: Analyzing trace with hash 266354188, now seen corresponding path program 21 times [2022-11-20 09:30:16,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452465008] [2022-11-20 09:30:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:17,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:17,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452465008] [2022-11-20 09:30:17,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452465008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:17,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:17,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:30:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730798417] [2022-11-20 09:30:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:17,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:17,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:30:17,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1176 transitions, 43073 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:17,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:17,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:30:17,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:24,944 INFO L130 PetriNetUnfolder]: 2855/5405 cut-off events. [2022-11-20 09:30:24,944 INFO L131 PetriNetUnfolder]: For 443323/443347 co-relation queries the response was YES. [2022-11-20 09:30:25,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82253 conditions, 5405 events. 2855/5405 cut-off events. For 443323/443347 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 35177 event pairs, 346 based on Foata normal form. 11/5381 useless extension candidates. Maximal degree in co-relation 81840. Up to 3289 conditions per place. [2022-11-20 09:30:25,046 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 588 selfloop transitions, 621 changer transitions 0/1316 dead transitions. [2022-11-20 09:30:25,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1316 transitions, 47633 flow [2022-11-20 09:30:25,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:30:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 09:30:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-20 09:30:25,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-20 09:30:25,050 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-20 09:30:25,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-20 09:30:25,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:25,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-20 09:30:25,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,062 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:25,062 INFO L175 Difference]: Start difference. First operand has 527 places, 1176 transitions, 43073 flow. Second operand 19 states and 2583 transitions. [2022-11-20 09:30:25,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1316 transitions, 47633 flow [2022-11-20 09:30:28,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1316 transitions, 47140 flow, removed 77 selfloop flow, removed 10 redundant places. [2022-11-20 09:30:28,956 INFO L231 Difference]: Finished difference. Result has 541 places, 1213 transitions, 46184 flow [2022-11-20 09:30:28,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=42603, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=585, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=46184, PETRI_PLACES=541, PETRI_TRANSITIONS=1213} [2022-11-20 09:30:28,958 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 310 predicate places. [2022-11-20 09:30:28,958 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1213 transitions, 46184 flow [2022-11-20 09:30:28,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:28,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:28,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 09:30:28,960 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:30:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash -529709466, now seen corresponding path program 22 times [2022-11-20 09:30:28,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:28,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878932674] [2022-11-20 09:30:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:30,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:30,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878932674] [2022-11-20 09:30:30,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878932674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:30,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:30,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:30:30,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214088776] [2022-11-20 09:30:30,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:30,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:30,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:30,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:30,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:30:30,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1213 transitions, 46184 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:30,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:30,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:30:30,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:37,648 INFO L130 PetriNetUnfolder]: 2910/5512 cut-off events. [2022-11-20 09:30:37,648 INFO L131 PetriNetUnfolder]: For 479736/479760 co-relation queries the response was YES. [2022-11-20 09:30:37,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86774 conditions, 5512 events. 2910/5512 cut-off events. For 479736/479760 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 36134 event pairs, 332 based on Foata normal form. 11/5488 useless extension candidates. Maximal degree in co-relation 86355. Up to 3405 conditions per place. [2022-11-20 09:30:37,747 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 616 selfloop transitions, 625 changer transitions 0/1348 dead transitions. [2022-11-20 09:30:37,747 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1348 transitions, 50970 flow [2022-11-20 09:30:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 09:30:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 09:30:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2022-11-20 09:30:37,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5863137815927516 [2022-11-20 09:30:37,752 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2022-11-20 09:30:37,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2022-11-20 09:30:37,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:37,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2022-11-20 09:30:37,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,762 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,762 INFO L175 Difference]: Start difference. First operand has 541 places, 1213 transitions, 46184 flow. Second operand 18 states and 2459 transitions. [2022-11-20 09:30:37,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1348 transitions, 50970 flow [2022-11-20 09:30:41,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1348 transitions, 50369 flow, removed 155 selfloop flow, removed 12 redundant places. [2022-11-20 09:30:41,485 INFO L231 Difference]: Finished difference. Result has 553 places, 1247 transitions, 49455 flow [2022-11-20 09:30:41,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=45615, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=591, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=49455, PETRI_PLACES=553, PETRI_TRANSITIONS=1247} [2022-11-20 09:30:41,487 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 322 predicate places. [2022-11-20 09:30:41,487 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1247 transitions, 49455 flow [2022-11-20 09:30:41,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:41,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:41,488 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:41,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 09:30:41,489 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:30:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:41,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1317103642, now seen corresponding path program 23 times [2022-11-20 09:30:41,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:41,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747481686] [2022-11-20 09:30:41,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:41,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:43,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:43,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747481686] [2022-11-20 09:30:43,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747481686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:43,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:43,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:30:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204175492] [2022-11-20 09:30:43,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:43,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:43,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:43,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:43,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:30:43,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1247 transitions, 49455 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:43,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:43,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:30:43,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:51,408 INFO L130 PetriNetUnfolder]: 3035/5729 cut-off events. [2022-11-20 09:30:51,409 INFO L131 PetriNetUnfolder]: For 540037/540061 co-relation queries the response was YES. [2022-11-20 09:30:51,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93002 conditions, 5729 events. 3035/5729 cut-off events. For 540037/540061 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 37814 event pairs, 340 based on Foata normal form. 11/5705 useless extension candidates. Maximal degree in co-relation 92576. Up to 3475 conditions per place. [2022-11-20 09:30:51,659 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 626 selfloop transitions, 659 changer transitions 0/1392 dead transitions. [2022-11-20 09:30:51,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 1392 transitions, 54654 flow [2022-11-20 09:30:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:30:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:30:51,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2721 transitions. [2022-11-20 09:30:51,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839055793991417 [2022-11-20 09:30:51,665 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2721 transitions. [2022-11-20 09:30:51,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2721 transitions. [2022-11-20 09:30:51,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:51,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2721 transitions. [2022-11-20 09:30:51,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.05) internal successors, (2721), 20 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:51,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:51,677 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:51,677 INFO L175 Difference]: Start difference. First operand has 553 places, 1247 transitions, 49455 flow. Second operand 20 states and 2721 transitions. [2022-11-20 09:30:51,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 1392 transitions, 54654 flow [2022-11-20 09:30:56,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1392 transitions, 54231 flow, removed 113 selfloop flow, removed 9 redundant places. [2022-11-20 09:30:56,276 INFO L231 Difference]: Finished difference. Result has 570 places, 1287 transitions, 52655 flow [2022-11-20 09:30:56,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=49098, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=623, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=52655, PETRI_PLACES=570, PETRI_TRANSITIONS=1287} [2022-11-20 09:30:56,278 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 339 predicate places. [2022-11-20 09:30:56,278 INFO L495 AbstractCegarLoop]: Abstraction has has 570 places, 1287 transitions, 52655 flow [2022-11-20 09:30:56,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:56,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:56,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:56,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 09:30:56,279 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:30:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash -401906076, now seen corresponding path program 24 times [2022-11-20 09:30:56,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:56,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958897095] [2022-11-20 09:30:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:56,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:57,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:57,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958897095] [2022-11-20 09:30:57,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958897095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:57,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:57,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:30:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298440486] [2022-11-20 09:30:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:57,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:30:57,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:30:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:30:57,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:30:57,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1287 transitions, 52655 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:57,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:57,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:30:57,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:05,464 INFO L130 PetriNetUnfolder]: 3114/5876 cut-off events. [2022-11-20 09:31:05,464 INFO L131 PetriNetUnfolder]: For 582687/582711 co-relation queries the response was YES. [2022-11-20 09:31:05,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98483 conditions, 5876 events. 3114/5876 cut-off events. For 582687/582711 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 39083 event pairs, 372 based on Foata normal form. 11/5851 useless extension candidates. Maximal degree in co-relation 98050. Up to 3645 conditions per place. [2022-11-20 09:31:05,578 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 643 selfloop transitions, 681 changer transitions 0/1431 dead transitions. [2022-11-20 09:31:05,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 1431 transitions, 58182 flow [2022-11-20 09:31:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 09:31:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 09:31:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2589 transitions. [2022-11-20 09:31:05,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5848204201490852 [2022-11-20 09:31:05,581 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2589 transitions. [2022-11-20 09:31:05,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2589 transitions. [2022-11-20 09:31:05,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:05,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2589 transitions. [2022-11-20 09:31:05,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.26315789473685) internal successors, (2589), 19 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,589 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:05,589 INFO L175 Difference]: Start difference. First operand has 570 places, 1287 transitions, 52655 flow. Second operand 19 states and 2589 transitions. [2022-11-20 09:31:05,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 1431 transitions, 58182 flow [2022-11-20 09:31:09,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1431 transitions, 57629 flow, removed 133 selfloop flow, removed 10 redundant places. [2022-11-20 09:31:09,659 INFO L231 Difference]: Finished difference. Result has 583 places, 1328 transitions, 56576 flow [2022-11-20 09:31:09,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=52166, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=642, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=56576, PETRI_PLACES=583, PETRI_TRANSITIONS=1328} [2022-11-20 09:31:09,661 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 352 predicate places. [2022-11-20 09:31:09,662 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 1328 transitions, 56576 flow [2022-11-20 09:31:09,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:09,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:09,663 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:09,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 09:31:09,663 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:31:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1423457512, now seen corresponding path program 25 times [2022-11-20 09:31:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408462080] [2022-11-20 09:31:09,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:09,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:11,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:11,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408462080] [2022-11-20 09:31:11,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408462080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:11,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:11,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:31:11,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943208402] [2022-11-20 09:31:11,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:11,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:31:11,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:31:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:31:11,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:31:11,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1328 transitions, 56576 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:11,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:11,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:31:11,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:19,284 INFO L130 PetriNetUnfolder]: 3157/5957 cut-off events. [2022-11-20 09:31:19,284 INFO L131 PetriNetUnfolder]: For 634565/634601 co-relation queries the response was YES. [2022-11-20 09:31:19,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102266 conditions, 5957 events. 3157/5957 cut-off events. For 634565/634601 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 39514 event pairs, 536 based on Foata normal form. 8/5923 useless extension candidates. Maximal degree in co-relation 101828. Up to 3701 conditions per place. [2022-11-20 09:31:19,385 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 648 selfloop transitions, 696 changer transitions 0/1451 dead transitions. [2022-11-20 09:31:19,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1451 transitions, 60953 flow [2022-11-20 09:31:19,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:31:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:31:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2022-11-20 09:31:19,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5836909871244635 [2022-11-20 09:31:19,391 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2022-11-20 09:31:19,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2022-11-20 09:31:19,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:19,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2022-11-20 09:31:19,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:19,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:19,399 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:19,400 INFO L175 Difference]: Start difference. First operand has 583 places, 1328 transitions, 56576 flow. Second operand 20 states and 2720 transitions. [2022-11-20 09:31:19,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1451 transitions, 60953 flow [2022-11-20 09:31:24,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1451 transitions, 60592 flow, removed 9 selfloop flow, removed 12 redundant places. [2022-11-20 09:31:24,766 INFO L231 Difference]: Finished difference. Result has 596 places, 1354 transitions, 59695 flow [2022-11-20 09:31:24,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=56220, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=675, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=59695, PETRI_PLACES=596, PETRI_TRANSITIONS=1354} [2022-11-20 09:31:24,768 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 365 predicate places. [2022-11-20 09:31:24,768 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 1354 transitions, 59695 flow [2022-11-20 09:31:24,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:24,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:24,769 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:24,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 09:31:24,769 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:31:24,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1921644938, now seen corresponding path program 26 times [2022-11-20 09:31:24,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:24,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779209744] [2022-11-20 09:31:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:26,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779209744] [2022-11-20 09:31:26,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779209744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:26,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:26,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:31:26,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242856348] [2022-11-20 09:31:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:31:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:31:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:31:26,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:31:26,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1354 transitions, 59695 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:26,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:26,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:31:26,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:35,101 INFO L130 PetriNetUnfolder]: 3155/5963 cut-off events. [2022-11-20 09:31:35,102 INFO L131 PetriNetUnfolder]: For 667605/667641 co-relation queries the response was YES. [2022-11-20 09:31:35,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104951 conditions, 5963 events. 3155/5963 cut-off events. For 667605/667641 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 39625 event pairs, 526 based on Foata normal form. 8/5929 useless extension candidates. Maximal degree in co-relation 104507. Up to 3671 conditions per place. [2022-11-20 09:31:35,247 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 657 selfloop transitions, 704 changer transitions 0/1468 dead transitions. [2022-11-20 09:31:35,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 1468 transitions, 63556 flow [2022-11-20 09:31:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:31:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:31:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-20 09:31:35,250 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-20 09:31:35,250 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-20 09:31:35,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-20 09:31:35,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:35,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-20 09:31:35,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,257 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:35,257 INFO L175 Difference]: Start difference. First operand has 596 places, 1354 transitions, 59695 flow. Second operand 20 states and 2717 transitions. [2022-11-20 09:31:35,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 1468 transitions, 63556 flow [2022-11-20 09:31:42,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 1468 transitions, 62800 flow, removed 173 selfloop flow, removed 12 redundant places. [2022-11-20 09:31:42,402 INFO L231 Difference]: Finished difference. Result has 606 places, 1369 transitions, 61152 flow [2022-11-20 09:31:42,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=59015, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=657, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61152, PETRI_PLACES=606, PETRI_TRANSITIONS=1369} [2022-11-20 09:31:42,403 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 375 predicate places. [2022-11-20 09:31:42,404 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1369 transitions, 61152 flow [2022-11-20 09:31:42,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:42,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:42,404 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:42,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 09:31:42,404 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:31:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:42,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1598708224, now seen corresponding path program 27 times [2022-11-20 09:31:42,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:42,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156590972] [2022-11-20 09:31:42,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:42,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:44,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156590972] [2022-11-20 09:31:44,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156590972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:44,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:44,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:31:44,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775578933] [2022-11-20 09:31:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:44,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:31:44,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:31:44,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:31:44,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:31:44,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1369 transitions, 61152 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:44,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:44,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:31:44,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:54,327 INFO L130 PetriNetUnfolder]: 3268/6152 cut-off events. [2022-11-20 09:31:54,327 INFO L131 PetriNetUnfolder]: For 700851/700887 co-relation queries the response was YES. [2022-11-20 09:31:54,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110142 conditions, 6152 events. 3268/6152 cut-off events. For 700851/700887 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 41043 event pairs, 528 based on Foata normal form. 8/6118 useless extension candidates. Maximal degree in co-relation 109695. Up to 3723 conditions per place. [2022-11-20 09:31:54,672 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 659 selfloop transitions, 739 changer transitions 0/1505 dead transitions. [2022-11-20 09:31:54,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1505 transitions, 66249 flow [2022-11-20 09:31:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:31:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:31:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-20 09:31:54,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-20 09:31:54,679 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-20 09:31:54,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-20 09:31:54,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:54,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-20 09:31:54,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,689 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:54,689 INFO L175 Difference]: Start difference. First operand has 606 places, 1369 transitions, 61152 flow. Second operand 20 states and 2718 transitions. [2022-11-20 09:31:54,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1505 transitions, 66249 flow [2022-11-20 09:32:01,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1505 transitions, 65710 flow, removed 33 selfloop flow, removed 13 redundant places. [2022-11-20 09:32:01,518 INFO L231 Difference]: Finished difference. Result has 617 places, 1402 transitions, 64032 flow [2022-11-20 09:32:01,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=60631, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64032, PETRI_PLACES=617, PETRI_TRANSITIONS=1402} [2022-11-20 09:32:01,520 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 386 predicate places. [2022-11-20 09:32:01,520 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 1402 transitions, 64032 flow [2022-11-20 09:32:01,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:01,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:32:01,521 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:32:01,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-20 09:32:01,521 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:32:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1705062094, now seen corresponding path program 28 times [2022-11-20 09:32:01,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:32:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024857509] [2022-11-20 09:32:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:01,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:32:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:32:03,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:32:03,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024857509] [2022-11-20 09:32:03,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024857509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:03,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:03,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:32:03,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302569671] [2022-11-20 09:32:03,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:03,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:32:03,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:32:03,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:32:03,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:32:03,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:32:03,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 1402 transitions, 64032 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:03,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:32:03,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:32:03,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:32:12,933 INFO L130 PetriNetUnfolder]: 3269/6165 cut-off events. [2022-11-20 09:32:12,933 INFO L131 PetriNetUnfolder]: For 735946/735982 co-relation queries the response was YES. [2022-11-20 09:32:13,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112953 conditions, 6165 events. 3269/6165 cut-off events. For 735946/735982 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 41203 event pairs, 532 based on Foata normal form. 8/6130 useless extension candidates. Maximal degree in co-relation 112501. Up to 3789 conditions per place. [2022-11-20 09:32:13,078 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 667 selfloop transitions, 745 changer transitions 0/1519 dead transitions. [2022-11-20 09:32:13,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1519 transitions, 68382 flow [2022-11-20 09:32:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:32:13,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:32:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-20 09:32:13,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-20 09:32:13,083 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-20 09:32:13,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-20 09:32:13,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:32:13,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-20 09:32:13,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:13,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:13,093 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:13,093 INFO L175 Difference]: Start difference. First operand has 617 places, 1402 transitions, 64032 flow. Second operand 20 states and 2713 transitions. [2022-11-20 09:32:13,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1519 transitions, 68382 flow [2022-11-20 09:32:21,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 1519 transitions, 67784 flow, removed 173 selfloop flow, removed 11 redundant places. [2022-11-20 09:32:21,906 INFO L231 Difference]: Finished difference. Result has 629 places, 1422 transitions, 66270 flow [2022-11-20 09:32:21,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=63540, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=66270, PETRI_PLACES=629, PETRI_TRANSITIONS=1422} [2022-11-20 09:32:21,908 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 398 predicate places. [2022-11-20 09:32:21,908 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 1422 transitions, 66270 flow [2022-11-20 09:32:21,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:21,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:32:21,909 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:32:21,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-20 09:32:21,909 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-20 09:32:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1107912212, now seen corresponding path program 29 times [2022-11-20 09:32:21,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:32:21,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700695656] [2022-11-20 09:32:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:32:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:32:23,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:32:23,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700695656] [2022-11-20 09:32:23,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700695656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:23,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:23,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 09:32:23,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406289586] [2022-11-20 09:32:23,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:23,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 09:32:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:32:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 09:32:23,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 09:32:23,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-20 09:32:23,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1422 transitions, 66270 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:32:23,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:32:23,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-20 09:32:23,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand