./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 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_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/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_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/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_3fa10f42-348c-458a-95b7-c244334681de/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 c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:39:31,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:39:31,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:39:31,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:39:31,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:39:31,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:39:31,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:39:31,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:39:31,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:39:31,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:39:31,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:39:31,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:39:31,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:39:31,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:39:31,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:39:31,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:39:31,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:39:31,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:39:31,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:39:31,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:39:31,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:39:31,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:39:31,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:39:31,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:39:31,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:39:31,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:39:31,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:39:31,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:39:31,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:39:31,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:39:31,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:39:31,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:39:31,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:39:31,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:39:31,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:39:31,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:39:31,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:39:31,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:39:31,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:39:31,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:39:31,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:39:31,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:39:31,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:39:31,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:39:31,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:39:31,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:39:31,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:39:31,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:39:31,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:39:31,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:39:31,307 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:39:31,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:39:31,308 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:39:31,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:39:31,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:39:31,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:39:31,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:39:31,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:39:31,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:39:31,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:39:31,316 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:39:31,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:39:31,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:39:31,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:39:31,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:39:31,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:39:31,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:39:31,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:39:31,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:31,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:39:31,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:39:31,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:39:31,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:39:31,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:39:31,321 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:39:31,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:39:31,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:39:31,322 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_3fa10f42-348c-458a-95b7-c244334681de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-20 11:39:31,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:39:31,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:39:31,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:39:31,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:39:31,646 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:39:31,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-20 11:39:34,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:39:35,027 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:39:35,028 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-20 11:39:35,047 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/data/7006bb125/a46ccefd865242eb9f7e492f3eea52c3/FLAG88994e9aa [2022-11-20 11:39:35,066 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/data/7006bb125/a46ccefd865242eb9f7e492f3eea52c3 [2022-11-20 11:39:35,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:39:35,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:39:35,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:35,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:39:35,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:39:35,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:35" (1/1) ... [2022-11-20 11:39:35,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddff71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:35, skipping insertion in model container [2022-11-20 11:39:35,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:35" (1/1) ... [2022-11-20 11:39:35,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:39:35,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:39:35,316 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:39:36,087 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_3fa10f42-348c-458a-95b7-c244334681de/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-20 11:39:36,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:36,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:39:36,190 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:39:36,241 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_3fa10f42-348c-458a-95b7-c244334681de/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-20 11:39:36,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:36,417 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:39:36,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36 WrapperNode [2022-11-20 11:39:36,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:36,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:36,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:39:36,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:39:36,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,544 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-20 11:39:36,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:36,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:39:36,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:39:36,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:39:36,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:39:36,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:39:36,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:39:36,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:39:36,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (1/1) ... [2022-11-20 11:39:36,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:39:36,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:39:36,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:39:36,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa10f42-348c-458a-95b7-c244334681de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:39:36,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:39:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:39:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:39:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:39:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:39:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:39:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:39:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:39:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:39:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-20 11:39:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-20 11:39:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:39:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:39:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:39:36,752 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 11:39:37,059 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:39:37,062 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:39:37,722 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:39:37,879 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:39:37,880 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:39:37,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:37 BoogieIcfgContainer [2022-11-20 11:39:37,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:39:37,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:39:37,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:39:37,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:39:37,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:39:35" (1/3) ... [2022-11-20 11:39:37,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64605e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:37, skipping insertion in model container [2022-11-20 11:39:37,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:36" (2/3) ... [2022-11-20 11:39:37,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d64605e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:39:37, skipping insertion in model container [2022-11-20 11:39:37,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:37" (3/3) ... [2022-11-20 11:39:37,891 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-20 11:39:37,899 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:39:37,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:39:37,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-20 11:39:37,910 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:39:37,975 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:39:38,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-20 11:39:38,159 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-20 11:39:38,160 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:39:38,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 625 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-20 11:39:38,166 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-20 11:39:38,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-20 11:39:38,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:39:38,206 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;@52cc90a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:39:38,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-20 11:39:38,224 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-20 11:39:38,224 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:39:38,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:38,226 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 11:39:38,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:38,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:38,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2121246416, now seen corresponding path program 1 times [2022-11-20 11:39:38,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:38,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352580222] [2022-11-20 11:39:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:38,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:39,292 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 11:39:39,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:39,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352580222] [2022-11-20 11:39:39,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352580222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:39,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:39,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:39,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658743456] [2022-11-20 11:39:39,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:39,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:39,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:39,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-20 11:39:39,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:39,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:39,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-20 11:39:39,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:40,225 INFO L130 PetriNetUnfolder]: 766/2163 cut-off events. [2022-11-20 11:39:40,225 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 11:39:40,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 2163 events. 766/2163 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14262 event pairs, 765 based on Foata normal form. 36/2036 useless extension candidates. Maximal degree in co-relation 3134. Up to 1367 conditions per place. [2022-11-20 11:39:40,247 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-20 11:39:40,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-20 11:39:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:40,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-20 11:39:40,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-20 11:39:40,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-20 11:39:40,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-20 11:39:40,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:40,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-20 11:39:40,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:40,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:40,299 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:40,301 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-20 11:39:40,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-20 11:39:40,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:39:40,319 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-20 11:39:40,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-20 11:39:40,324 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-20 11:39:40,324 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-20 11:39:40,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:40,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:40,325 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 11:39:40,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:39:40,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash -140736374, now seen corresponding path program 1 times [2022-11-20 11:39:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:40,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542736565] [2022-11-20 11:39:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:40,779 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 11:39:40,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:40,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542736565] [2022-11-20 11:39:40,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542736565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:40,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:40,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:40,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011572255] [2022-11-20 11:39:40,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:40,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:40,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:40,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:40,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:40,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-20 11:39:40,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:40,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:40,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-20 11:39:40,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:41,413 INFO L130 PetriNetUnfolder]: 742/1881 cut-off events. [2022-11-20 11:39:41,413 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:39:41,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 1881 events. 742/1881 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11902 event pairs, 741 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 3161. Up to 1325 conditions per place. [2022-11-20 11:39:41,425 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-20 11:39:41,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-20 11:39:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-20 11:39:41,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-20 11:39:41,429 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-20 11:39:41,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-20 11:39:41,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:41,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-20 11:39:41,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:41,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:41,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:41,437 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-20 11:39:41,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-20 11:39:41,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:39:41,442 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-20 11:39:41,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-20 11:39:41,443 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-20 11:39:41,444 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-20 11:39:41,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:41,444 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:41,445 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 11:39:41,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:39:41,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:41,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:41,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1153358172, now seen corresponding path program 1 times [2022-11-20 11:39:41,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:41,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965289171] [2022-11-20 11:39:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:41,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:41,935 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 11:39:41,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965289171] [2022-11-20 11:39:41,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965289171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:41,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:41,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:41,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528424094] [2022-11-20 11:39:41,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:41,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:41,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:41,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:41,941 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-20 11:39:41,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:41,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:41,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-20 11:39:41,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:42,941 INFO L130 PetriNetUnfolder]: 1018/2384 cut-off events. [2022-11-20 11:39:42,941 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:39:42,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4191 conditions, 2384 events. 1018/2384 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 15704 event pairs, 819 based on Foata normal form. 0/2264 useless extension candidates. Maximal degree in co-relation 4118. Up to 1695 conditions per place. [2022-11-20 11:39:42,955 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-20 11:39:42,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-20 11:39:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-20 11:39:42,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-20 11:39:42,958 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-20 11:39:42,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-20 11:39:42,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:42,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-20 11:39:42,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:42,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:42,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:42,966 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-20 11:39:42,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-20 11:39:42,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:39:42,971 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-20 11:39:42,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-20 11:39:42,973 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-20 11:39:42,973 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-20 11:39:42,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:42,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:42,974 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 11:39:42,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:39:42,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:42,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:42,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1732561676, now seen corresponding path program 1 times [2022-11-20 11:39:42,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:42,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414014555] [2022-11-20 11:39:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:43,129 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 11:39:43,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:43,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414014555] [2022-11-20 11:39:43,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414014555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:43,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:43,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:43,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921802561] [2022-11-20 11:39:43,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:43,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:39:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:39:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:39:43,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-20 11:39:43,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:43,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:43,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-20 11:39:43,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:43,520 INFO L130 PetriNetUnfolder]: 449/1623 cut-off events. [2022-11-20 11:39:43,520 INFO L131 PetriNetUnfolder]: For 460/520 co-relation queries the response was YES. [2022-11-20 11:39:43,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 1623 events. 449/1623 cut-off events. For 460/520 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10302 event pairs, 264 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2139. Up to 606 conditions per place. [2022-11-20 11:39:43,533 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-20 11:39:43,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-20 11:39:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-20 11:39:43,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-20 11:39:43,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-20 11:39:43,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-20 11:39:43,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:43,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-20 11:39:43,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:43,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:43,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:43,545 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-20 11:39:43,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-20 11:39:43,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:39:43,554 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-20 11:39:43,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-20 11:39:43,555 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-20 11:39:43,555 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-20 11:39:43,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:43,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:43,557 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 11:39:43,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:39:43,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:43,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1253499727, now seen corresponding path program 1 times [2022-11-20 11:39:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124096047] [2022-11-20 11:39:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:43,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:44,063 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 11:39:44,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:44,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124096047] [2022-11-20 11:39:44,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124096047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:44,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:44,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:44,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849192751] [2022-11-20 11:39:44,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:44,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:44,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:44,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:44,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:44,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-20 11:39:44,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:44,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:44,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-20 11:39:44,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:45,175 INFO L130 PetriNetUnfolder]: 1147/2607 cut-off events. [2022-11-20 11:39:45,175 INFO L131 PetriNetUnfolder]: For 845/851 co-relation queries the response was YES. [2022-11-20 11:39:45,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6228 conditions, 2607 events. 1147/2607 cut-off events. For 845/851 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16732 event pairs, 753 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 6125. Up to 1900 conditions per place. [2022-11-20 11:39:45,196 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-20 11:39:45,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-20 11:39:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-20 11:39:45,200 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-20 11:39:45,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-20 11:39:45,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-20 11:39:45,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:45,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-20 11:39:45,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:45,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:45,207 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:45,208 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-20 11:39:45,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-20 11:39:45,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:39:45,217 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-20 11:39:45,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-20 11:39:45,219 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-20 11:39:45,219 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-20 11:39:45,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:45,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:45,220 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 11:39:45,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:39:45,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:45,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1373465184, now seen corresponding path program 1 times [2022-11-20 11:39:45,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:45,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416831467] [2022-11-20 11:39:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:45,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:45,699 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 11:39:45,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:45,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416831467] [2022-11-20 11:39:45,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416831467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:45,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:45,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555580441] [2022-11-20 11:39:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:45,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:45,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:45,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:45,704 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-20 11:39:45,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:45,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:45,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-20 11:39:45,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:46,751 INFO L130 PetriNetUnfolder]: 1123/2692 cut-off events. [2022-11-20 11:39:46,752 INFO L131 PetriNetUnfolder]: For 2062/2224 co-relation queries the response was YES. [2022-11-20 11:39:46,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7695 conditions, 2692 events. 1123/2692 cut-off events. For 2062/2224 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 17777 event pairs, 548 based on Foata normal form. 0/2600 useless extension candidates. Maximal degree in co-relation 5643. Up to 1798 conditions per place. [2022-11-20 11:39:46,777 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 139 selfloop transitions, 22 changer transitions 0/298 dead transitions. [2022-11-20 11:39:46,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 298 transitions, 1377 flow [2022-11-20 11:39:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1012 transitions. [2022-11-20 11:39:46,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6828609986504723 [2022-11-20 11:39:46,781 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1012 transitions. [2022-11-20 11:39:46,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1012 transitions. [2022-11-20 11:39:46,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:46,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1012 transitions. [2022-11-20 11:39:46,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:46,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:46,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:46,790 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 1012 transitions. [2022-11-20 11:39:46,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 298 transitions, 1377 flow [2022-11-20 11:39:46,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 298 transitions, 1329 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-20 11:39:46,807 INFO L231 Difference]: Finished difference. Result has 246 places, 289 transitions, 1064 flow [2022-11-20 11:39:46,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=246, PETRI_TRANSITIONS=289} [2022-11-20 11:39:46,811 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 1 predicate places. [2022-11-20 11:39:46,811 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 289 transitions, 1064 flow [2022-11-20 11:39:46,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:46,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:46,812 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 11:39:46,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:39:46,813 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1652809650, now seen corresponding path program 1 times [2022-11-20 11:39:46,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765887200] [2022-11-20 11:39:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:47,300 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 11:39:47,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:47,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765887200] [2022-11-20 11:39:47,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765887200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:47,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:47,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506389425] [2022-11-20 11:39:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:47,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:47,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:47,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:47,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-20 11:39:47,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 289 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:47,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:47,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-20 11:39:47,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:48,718 INFO L130 PetriNetUnfolder]: 1448/3388 cut-off events. [2022-11-20 11:39:48,718 INFO L131 PetriNetUnfolder]: For 3667/3693 co-relation queries the response was YES. [2022-11-20 11:39:48,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10650 conditions, 3388 events. 1448/3388 cut-off events. For 3667/3693 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22586 event pairs, 515 based on Foata normal form. 0/3320 useless extension candidates. Maximal degree in co-relation 9454. Up to 2180 conditions per place. [2022-11-20 11:39:48,759 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 167 selfloop transitions, 26 changer transitions 0/324 dead transitions. [2022-11-20 11:39:48,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 324 transitions, 1652 flow [2022-11-20 11:39:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-20 11:39:48,764 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-20 11:39:48,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-20 11:39:48,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-20 11:39:48,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:48,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-20 11:39:48,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:48,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:48,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:48,779 INFO L175 Difference]: Start difference. First operand has 246 places, 289 transitions, 1064 flow. Second operand 6 states and 976 transitions. [2022-11-20 11:39:48,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 324 transitions, 1652 flow [2022-11-20 11:39:48,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 324 transitions, 1652 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:39:48,795 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1328 flow [2022-11-20 11:39:48,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-20 11:39:48,797 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-20 11:39:48,797 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1328 flow [2022-11-20 11:39:48,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:48,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:48,798 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 11:39:48,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:39:48,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:48,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:48,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1071839121, now seen corresponding path program 1 times [2022-11-20 11:39:48,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:48,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335231085] [2022-11-20 11:39:48,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:48,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:48,967 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 11:39:48,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:48,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335231085] [2022-11-20 11:39:48,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335231085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:48,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:48,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:48,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001306922] [2022-11-20 11:39:48,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:48,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:39:48,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:39:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:39:48,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-20 11:39:48,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1328 flow. Second operand has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:48,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:48,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-20 11:39:48,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:49,386 INFO L130 PetriNetUnfolder]: 327/1127 cut-off events. [2022-11-20 11:39:49,387 INFO L131 PetriNetUnfolder]: For 1923/1995 co-relation queries the response was YES. [2022-11-20 11:39:49,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 1127 events. 327/1127 cut-off events. For 1923/1995 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6239 event pairs, 27 based on Foata normal form. 16/1124 useless extension candidates. Maximal degree in co-relation 3217. Up to 373 conditions per place. [2022-11-20 11:39:49,398 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 66 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-20 11:39:49,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1124 flow [2022-11-20 11:39:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:49,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-20 11:39:49,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-20 11:39:49,402 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-20 11:39:49,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-20 11:39:49,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:49,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-20 11:39:49,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:49,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:49,410 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:49,411 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1328 flow. Second operand 6 states and 1278 transitions. [2022-11-20 11:39:49,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1124 flow [2022-11-20 11:39:49,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1055 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-20 11:39:49,421 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 714 flow [2022-11-20 11:39:49,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-20 11:39:49,422 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-20 11:39:49,422 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 714 flow [2022-11-20 11:39:49,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:49,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:49,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:39:49,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:39:49,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:49,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:49,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1726618591, now seen corresponding path program 1 times [2022-11-20 11:39:49,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:49,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568885252] [2022-11-20 11:39:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:49,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:52,428 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 11:39:52,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:52,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568885252] [2022-11-20 11:39:52,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568885252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:52,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:52,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:39:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146934972] [2022-11-20 11:39:52,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:52,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:39:52,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:52,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:39:52,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:39:52,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:39:52,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 714 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:52,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:52,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:39:52,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:54,776 INFO L130 PetriNetUnfolder]: 1024/2127 cut-off events. [2022-11-20 11:39:54,776 INFO L131 PetriNetUnfolder]: For 4017/4045 co-relation queries the response was YES. [2022-11-20 11:39:54,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7118 conditions, 2127 events. 1024/2127 cut-off events. For 4017/4045 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 12345 event pairs, 51 based on Foata normal form. 8/2114 useless extension candidates. Maximal degree in co-relation 6940. Up to 829 conditions per place. [2022-11-20 11:39:54,797 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 237 selfloop transitions, 64 changer transitions 0/412 dead transitions. [2022-11-20 11:39:54,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 412 transitions, 2480 flow [2022-11-20 11:39:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:39:54,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:39:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2762 transitions. [2022-11-20 11:39:54,807 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5591093117408907 [2022-11-20 11:39:54,807 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2762 transitions. [2022-11-20 11:39:54,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2762 transitions. [2022-11-20 11:39:54,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:54,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2762 transitions. [2022-11-20 11:39:54,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.1) internal successors, (2762), 20 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:54,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:54,830 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:54,830 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 714 flow. Second operand 20 states and 2762 transitions. [2022-11-20 11:39:54,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 412 transitions, 2480 flow [2022-11-20 11:39:54,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 412 transitions, 2455 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-20 11:39:54,849 INFO L231 Difference]: Finished difference. Result has 254 places, 276 transitions, 1355 flow [2022-11-20 11:39:54,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1355, PETRI_PLACES=254, PETRI_TRANSITIONS=276} [2022-11-20 11:39:54,850 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 9 predicate places. [2022-11-20 11:39:54,851 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 276 transitions, 1355 flow [2022-11-20 11:39:54,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:54,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:54,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:54,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:39:54,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1393729333, now seen corresponding path program 2 times [2022-11-20 11:39:54,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:54,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635687169] [2022-11-20 11:39:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:54,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:57,154 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 11:39:57,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:57,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635687169] [2022-11-20 11:39:57,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635687169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:57,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:57,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:39:57,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000229333] [2022-11-20 11:39:57,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:57,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:39:57,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:57,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:39:57,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:39:57,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:39:57,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 276 transitions, 1355 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:57,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:57,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:39:57,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:59,239 INFO L130 PetriNetUnfolder]: 1268/2618 cut-off events. [2022-11-20 11:39:59,240 INFO L131 PetriNetUnfolder]: For 11527/11555 co-relation queries the response was YES. [2022-11-20 11:39:59,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11180 conditions, 2618 events. 1268/2618 cut-off events. For 11527/11555 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15670 event pairs, 366 based on Foata normal form. 8/2593 useless extension candidates. Maximal degree in co-relation 10998. Up to 1471 conditions per place. [2022-11-20 11:39:59,269 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 212 selfloop transitions, 85 changer transitions 0/408 dead transitions. [2022-11-20 11:39:59,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 408 transitions, 2949 flow [2022-11-20 11:39:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:39:59,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:39:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-11-20 11:39:59,277 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5637056442010002 [2022-11-20 11:39:59,277 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-11-20 11:39:59,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-11-20 11:39:59,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:59,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-11-20 11:39:59,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.23529411764707) internal successors, (2367), 17 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:59,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:59,310 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:59,311 INFO L175 Difference]: Start difference. First operand has 254 places, 276 transitions, 1355 flow. Second operand 17 states and 2367 transitions. [2022-11-20 11:39:59,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 408 transitions, 2949 flow [2022-11-20 11:39:59,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 408 transitions, 2881 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-20 11:39:59,350 INFO L231 Difference]: Finished difference. Result has 269 places, 323 transitions, 2278 flow [2022-11-20 11:39:59,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2278, PETRI_PLACES=269, PETRI_TRANSITIONS=323} [2022-11-20 11:39:59,352 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 24 predicate places. [2022-11-20 11:39:59,353 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 323 transitions, 2278 flow [2022-11-20 11:39:59,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:39:59,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:59,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:39:59,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:39:59,356 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:39:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 159715451, now seen corresponding path program 3 times [2022-11-20 11:39:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:59,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471258197] [2022-11-20 11:39:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:01,326 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 11:40:01,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:01,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471258197] [2022-11-20 11:40:01,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471258197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:01,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:01,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353225839] [2022-11-20 11:40:01,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:01,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:01,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:01,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:01,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:01,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:01,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 323 transitions, 2278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:01,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:01,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:01,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:03,771 INFO L130 PetriNetUnfolder]: 1375/2751 cut-off events. [2022-11-20 11:40:03,771 INFO L131 PetriNetUnfolder]: For 18341/18341 co-relation queries the response was YES. [2022-11-20 11:40:03,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13987 conditions, 2751 events. 1375/2751 cut-off events. For 18341/18341 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16219 event pairs, 399 based on Foata normal form. 8/2726 useless extension candidates. Maximal degree in co-relation 13797. Up to 1418 conditions per place. [2022-11-20 11:40:03,799 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 199 selfloop transitions, 127 changer transitions 0/437 dead transitions. [2022-11-20 11:40:03,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 437 transitions, 3895 flow [2022-11-20 11:40:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:40:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 11:40:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2233 transitions. [2022-11-20 11:40:03,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5650303643724697 [2022-11-20 11:40:03,808 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2233 transitions. [2022-11-20 11:40:03,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2233 transitions. [2022-11-20 11:40:03,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:03,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2233 transitions. [2022-11-20 11:40:03,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 139.5625) internal successors, (2233), 16 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:03,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:03,825 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:03,825 INFO L175 Difference]: Start difference. First operand has 269 places, 323 transitions, 2278 flow. Second operand 16 states and 2233 transitions. [2022-11-20 11:40:03,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 437 transitions, 3895 flow [2022-11-20 11:40:03,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 437 transitions, 3698 flow, removed 83 selfloop flow, removed 9 redundant places. [2022-11-20 11:40:03,898 INFO L231 Difference]: Finished difference. Result has 281 places, 367 transitions, 3262 flow [2022-11-20 11:40:03,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3262, PETRI_PLACES=281, PETRI_TRANSITIONS=367} [2022-11-20 11:40:03,899 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 36 predicate places. [2022-11-20 11:40:03,899 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 367 transitions, 3262 flow [2022-11-20 11:40:03,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:03,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:03,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:03,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:40:03,901 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 458935901, now seen corresponding path program 4 times [2022-11-20 11:40:03,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:03,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933831026] [2022-11-20 11:40:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:06,378 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 11:40:06,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:06,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933831026] [2022-11-20 11:40:06,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933831026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:06,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:06,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:06,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509289806] [2022-11-20 11:40:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:06,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:06,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:06,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:06,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 367 transitions, 3262 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:06,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:06,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:06,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:09,346 INFO L130 PetriNetUnfolder]: 1655/3274 cut-off events. [2022-11-20 11:40:09,346 INFO L131 PetriNetUnfolder]: For 32815/32899 co-relation queries the response was YES. [2022-11-20 11:40:09,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18804 conditions, 3274 events. 1655/3274 cut-off events. For 32815/32899 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 20192 event pairs, 260 based on Foata normal form. 8/3250 useless extension candidates. Maximal degree in co-relation 18609. Up to 1454 conditions per place. [2022-11-20 11:40:09,381 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 317 selfloop transitions, 161 changer transitions 0/589 dead transitions. [2022-11-20 11:40:09,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 589 transitions, 7145 flow [2022-11-20 11:40:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:40:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:40:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-20 11:40:09,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-20 11:40:09,388 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-20 11:40:09,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-20 11:40:09,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:09,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-20 11:40:09,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:09,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:09,404 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:09,404 INFO L175 Difference]: Start difference. First operand has 281 places, 367 transitions, 3262 flow. Second operand 20 states and 2768 transitions. [2022-11-20 11:40:09,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 589 transitions, 7145 flow [2022-11-20 11:40:09,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 589 transitions, 6965 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-20 11:40:09,502 INFO L231 Difference]: Finished difference. Result has 298 places, 440 transitions, 5176 flow [2022-11-20 11:40:09,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3176, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5176, PETRI_PLACES=298, PETRI_TRANSITIONS=440} [2022-11-20 11:40:09,503 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 53 predicate places. [2022-11-20 11:40:09,503 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 440 transitions, 5176 flow [2022-11-20 11:40:09,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:09,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:09,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:40:09,505 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1435470851, now seen corresponding path program 5 times [2022-11-20 11:40:09,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:09,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515096771] [2022-11-20 11:40:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:09,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:11,272 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 11:40:11,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:11,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515096771] [2022-11-20 11:40:11,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515096771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:11,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:11,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572871886] [2022-11-20 11:40:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:11,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:11,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:11,276 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:11,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 440 transitions, 5176 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:11,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:11,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:11,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:14,596 INFO L130 PetriNetUnfolder]: 1872/3659 cut-off events. [2022-11-20 11:40:14,597 INFO L131 PetriNetUnfolder]: For 50970/50970 co-relation queries the response was YES. [2022-11-20 11:40:14,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24355 conditions, 3659 events. 1872/3659 cut-off events. For 50970/50970 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22995 event pairs, 422 based on Foata normal form. 8/3635 useless extension candidates. Maximal degree in co-relation 24153. Up to 1836 conditions per place. [2022-11-20 11:40:14,637 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 246 selfloop transitions, 235 changer transitions 0/592 dead transitions. [2022-11-20 11:40:14,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 592 transitions, 7984 flow [2022-11-20 11:40:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:40:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:40:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2375 transitions. [2022-11-20 11:40:14,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5656108597285068 [2022-11-20 11:40:14,642 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2375 transitions. [2022-11-20 11:40:14,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2375 transitions. [2022-11-20 11:40:14,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:14,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2375 transitions. [2022-11-20 11:40:14,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.7058823529412) internal successors, (2375), 17 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:14,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:14,656 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:14,656 INFO L175 Difference]: Start difference. First operand has 298 places, 440 transitions, 5176 flow. Second operand 17 states and 2375 transitions. [2022-11-20 11:40:14,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 592 transitions, 7984 flow [2022-11-20 11:40:14,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 592 transitions, 7669 flow, removed 92 selfloop flow, removed 12 redundant places. [2022-11-20 11:40:14,850 INFO L231 Difference]: Finished difference. Result has 308 places, 505 transitions, 7095 flow [2022-11-20 11:40:14,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=4925, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7095, PETRI_PLACES=308, PETRI_TRANSITIONS=505} [2022-11-20 11:40:14,852 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 63 predicate places. [2022-11-20 11:40:14,852 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 505 transitions, 7095 flow [2022-11-20 11:40:14,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:14,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:14,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:14,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:40:14,854 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:14,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:14,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1790632389, now seen corresponding path program 6 times [2022-11-20 11:40:14,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:14,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313729960] [2022-11-20 11:40:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:16,828 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 11:40:16,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:16,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313729960] [2022-11-20 11:40:16,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313729960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:16,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:16,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:16,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079078516] [2022-11-20 11:40:16,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:16,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:16,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:16,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:16,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:16,832 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:16,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 505 transitions, 7095 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:16,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:16,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:16,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:19,611 INFO L130 PetriNetUnfolder]: 1946/3781 cut-off events. [2022-11-20 11:40:19,611 INFO L131 PetriNetUnfolder]: For 70368/70368 co-relation queries the response was YES. [2022-11-20 11:40:19,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27116 conditions, 3781 events. 1946/3781 cut-off events. For 70368/70368 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 24152 event pairs, 56 based on Foata normal form. 8/3770 useless extension candidates. Maximal degree in co-relation 26908. Up to 1745 conditions per place. [2022-11-20 11:40:19,658 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 367 selfloop transitions, 215 changer transitions 0/693 dead transitions. [2022-11-20 11:40:19,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 693 transitions, 11011 flow [2022-11-20 11:40:19,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:40:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:40:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-20 11:40:19,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-20 11:40:19,664 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-20 11:40:19,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-20 11:40:19,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:19,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-20 11:40:19,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:19,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:19,680 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:19,680 INFO L175 Difference]: Start difference. First operand has 308 places, 505 transitions, 7095 flow. Second operand 20 states and 2768 transitions. [2022-11-20 11:40:19,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 693 transitions, 11011 flow [2022-11-20 11:40:19,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 693 transitions, 10749 flow, removed 49 selfloop flow, removed 9 redundant places. [2022-11-20 11:40:19,928 INFO L231 Difference]: Finished difference. Result has 324 places, 537 transitions, 8247 flow [2022-11-20 11:40:19,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=6936, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8247, PETRI_PLACES=324, PETRI_TRANSITIONS=537} [2022-11-20 11:40:19,929 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-20 11:40:19,929 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 537 transitions, 8247 flow [2022-11-20 11:40:19,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:19,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:19,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:19,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:40:19,931 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:19,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:19,931 INFO L85 PathProgramCache]: Analyzing trace with hash -151037885, now seen corresponding path program 7 times [2022-11-20 11:40:19,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:19,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968618722] [2022-11-20 11:40:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:21,607 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 11:40:21,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:21,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968618722] [2022-11-20 11:40:21,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968618722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:21,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:21,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:21,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902560403] [2022-11-20 11:40:21,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:21,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:21,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:21,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:21,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 537 transitions, 8247 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:21,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:21,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:21,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:24,317 INFO L130 PetriNetUnfolder]: 2205/4295 cut-off events. [2022-11-20 11:40:24,318 INFO L131 PetriNetUnfolder]: For 80010/80010 co-relation queries the response was YES. [2022-11-20 11:40:24,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32432 conditions, 4295 events. 2205/4295 cut-off events. For 80010/80010 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 28069 event pairs, 431 based on Foata normal form. 8/4271 useless extension candidates. Maximal degree in co-relation 32218. Up to 2124 conditions per place. [2022-11-20 11:40:24,382 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 276 selfloop transitions, 309 changer transitions 0/696 dead transitions. [2022-11-20 11:40:24,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 696 transitions, 11805 flow [2022-11-20 11:40:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:40:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-20 11:40:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2374 transitions. [2022-11-20 11:40:24,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653727077875684 [2022-11-20 11:40:24,387 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2374 transitions. [2022-11-20 11:40:24,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2374 transitions. [2022-11-20 11:40:24,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:24,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2374 transitions. [2022-11-20 11:40:24,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.64705882352942) internal successors, (2374), 17 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:24,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:24,402 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:24,402 INFO L175 Difference]: Start difference. First operand has 324 places, 537 transitions, 8247 flow. Second operand 17 states and 2374 transitions. [2022-11-20 11:40:24,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 696 transitions, 11805 flow [2022-11-20 11:40:24,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 696 transitions, 11582 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-20 11:40:24,707 INFO L231 Difference]: Finished difference. Result has 336 places, 622 transitions, 11243 flow [2022-11-20 11:40:24,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8075, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11243, PETRI_PLACES=336, PETRI_TRANSITIONS=622} [2022-11-20 11:40:24,709 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 91 predicate places. [2022-11-20 11:40:24,709 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 622 transitions, 11243 flow [2022-11-20 11:40:24,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:24,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:24,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:24,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:40:24,710 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:24,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1981756155, now seen corresponding path program 8 times [2022-11-20 11:40:24,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:24,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644067474] [2022-11-20 11:40:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:24,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:26,263 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 11:40:26,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:26,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644067474] [2022-11-20 11:40:26,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644067474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:26,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:26,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327375365] [2022-11-20 11:40:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:26,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:26,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:26,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:26,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 622 transitions, 11243 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:26,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:26,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:26,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:29,507 INFO L130 PetriNetUnfolder]: 2251/4398 cut-off events. [2022-11-20 11:40:29,507 INFO L131 PetriNetUnfolder]: For 109426/109454 co-relation queries the response was YES. [2022-11-20 11:40:29,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36037 conditions, 4398 events. 2251/4398 cut-off events. For 109426/109454 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 29018 event pairs, 101 based on Foata normal form. 8/4383 useless extension candidates. Maximal degree in co-relation 35815. Up to 2085 conditions per place. [2022-11-20 11:40:29,701 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 418 selfloop transitions, 273 changer transitions 0/802 dead transitions. [2022-11-20 11:40:29,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 802 transitions, 15569 flow [2022-11-20 11:40:29,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:40:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:40:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-20 11:40:29,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-20 11:40:29,706 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-20 11:40:29,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-20 11:40:29,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:29,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-20 11:40:29,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:29,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:29,720 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:29,720 INFO L175 Difference]: Start difference. First operand has 336 places, 622 transitions, 11243 flow. Second operand 19 states and 2631 transitions. [2022-11-20 11:40:29,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 802 transitions, 15569 flow [2022-11-20 11:40:29,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 802 transitions, 15133 flow, removed 144 selfloop flow, removed 10 redundant places. [2022-11-20 11:40:30,008 INFO L231 Difference]: Finished difference. Result has 349 places, 641 transitions, 12406 flow [2022-11-20 11:40:30,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10925, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12406, PETRI_PLACES=349, PETRI_TRANSITIONS=641} [2022-11-20 11:40:30,009 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-20 11:40:30,010 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 641 transitions, 12406 flow [2022-11-20 11:40:30,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:30,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:30,011 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:30,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:40:30,011 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:30,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1914038053, now seen corresponding path program 9 times [2022-11-20 11:40:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:30,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754793042] [2022-11-20 11:40:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:31,592 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 11:40:31,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:31,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754793042] [2022-11-20 11:40:31,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754793042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:31,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:31,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:31,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726112418] [2022-11-20 11:40:31,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:31,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:31,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:31,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:31,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:31,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:31,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 641 transitions, 12406 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:31,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:31,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:31,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:34,867 INFO L130 PetriNetUnfolder]: 2410/4643 cut-off events. [2022-11-20 11:40:34,867 INFO L131 PetriNetUnfolder]: For 124889/124889 co-relation queries the response was YES. [2022-11-20 11:40:34,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40619 conditions, 4643 events. 2410/4643 cut-off events. For 124889/124889 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 30532 event pairs, 172 based on Foata normal form. 8/4625 useless extension candidates. Maximal degree in co-relation 40395. Up to 2683 conditions per place. [2022-11-20 11:40:34,915 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 359 selfloop transitions, 313 changer transitions 0/783 dead transitions. [2022-11-20 11:40:34,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 783 transitions, 15985 flow [2022-11-20 11:40:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:40:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:40:34,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2506 transitions. [2022-11-20 11:40:34,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5636527215474584 [2022-11-20 11:40:34,919 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2506 transitions. [2022-11-20 11:40:34,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2506 transitions. [2022-11-20 11:40:34,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:34,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2506 transitions. [2022-11-20 11:40:34,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.22222222222223) internal successors, (2506), 18 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:34,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:34,931 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:34,931 INFO L175 Difference]: Start difference. First operand has 349 places, 641 transitions, 12406 flow. Second operand 18 states and 2506 transitions. [2022-11-20 11:40:34,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 783 transitions, 15985 flow [2022-11-20 11:40:35,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 783 transitions, 15830 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-11-20 11:40:35,370 INFO L231 Difference]: Finished difference. Result has 360 places, 687 transitions, 14757 flow [2022-11-20 11:40:35,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12270, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14757, PETRI_PLACES=360, PETRI_TRANSITIONS=687} [2022-11-20 11:40:35,371 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 115 predicate places. [2022-11-20 11:40:35,371 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 687 transitions, 14757 flow [2022-11-20 11:40:35,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:35,372 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:35,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:40:35,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2038817223, now seen corresponding path program 10 times [2022-11-20 11:40:35,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:35,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134181665] [2022-11-20 11:40:35,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:37,242 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 11:40:37,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:37,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134181665] [2022-11-20 11:40:37,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134181665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:37,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:37,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117713124] [2022-11-20 11:40:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:37,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:37,246 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:37,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 687 transitions, 14757 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:37,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:37,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:41,673 INFO L130 PetriNetUnfolder]: 2627/5124 cut-off events. [2022-11-20 11:40:41,674 INFO L131 PetriNetUnfolder]: For 162008/162008 co-relation queries the response was YES. [2022-11-20 11:40:41,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47077 conditions, 5124 events. 2627/5124 cut-off events. For 162008/162008 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 34675 event pairs, 448 based on Foata normal form. 8/5099 useless extension candidates. Maximal degree in co-relation 46848. Up to 2326 conditions per place. [2022-11-20 11:40:41,774 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 308 selfloop transitions, 478 changer transitions 0/897 dead transitions. [2022-11-20 11:40:41,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 897 transitions, 20111 flow [2022-11-20 11:40:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:40:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:40:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2765 transitions. [2022-11-20 11:40:41,780 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5597165991902834 [2022-11-20 11:40:41,780 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2765 transitions. [2022-11-20 11:40:41,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2765 transitions. [2022-11-20 11:40:41,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:41,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2765 transitions. [2022-11-20 11:40:41,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.25) internal successors, (2765), 20 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:41,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:41,797 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:41,797 INFO L175 Difference]: Start difference. First operand has 360 places, 687 transitions, 14757 flow. Second operand 20 states and 2765 transitions. [2022-11-20 11:40:41,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 897 transitions, 20111 flow [2022-11-20 11:40:42,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 897 transitions, 19920 flow, removed 48 selfloop flow, removed 11 redundant places. [2022-11-20 11:40:42,485 INFO L231 Difference]: Finished difference. Result has 380 places, 813 transitions, 19301 flow [2022-11-20 11:40:42,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=14567, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19301, PETRI_PLACES=380, PETRI_TRANSITIONS=813} [2022-11-20 11:40:42,486 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 135 predicate places. [2022-11-20 11:40:42,486 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 813 transitions, 19301 flow [2022-11-20 11:40:42,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:42,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:42,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:42,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:40:42,488 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:42,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:42,488 INFO L85 PathProgramCache]: Analyzing trace with hash -853750051, now seen corresponding path program 11 times [2022-11-20 11:40:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:42,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641536274] [2022-11-20 11:40:42,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:42,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:44,390 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 11:40:44,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:44,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641536274] [2022-11-20 11:40:44,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641536274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:44,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:44,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:44,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528199526] [2022-11-20 11:40:44,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:44,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:44,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:44,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:44,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:44,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:44,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 813 transitions, 19301 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:44,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:44,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:44,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:48,914 INFO L130 PetriNetUnfolder]: 2631/5128 cut-off events. [2022-11-20 11:40:48,915 INFO L131 PetriNetUnfolder]: For 186733/186761 co-relation queries the response was YES. [2022-11-20 11:40:48,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51024 conditions, 5128 events. 2631/5128 cut-off events. For 186733/186761 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 34892 event pairs, 121 based on Foata normal form. 8/5113 useless extension candidates. Maximal degree in co-relation 50783. Up to 2486 conditions per place. [2022-11-20 11:40:48,983 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 498 selfloop transitions, 347 changer transitions 0/956 dead transitions. [2022-11-20 11:40:48,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 956 transitions, 23274 flow [2022-11-20 11:40:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:40:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:40:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-20 11:40:48,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-20 11:40:48,990 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-20 11:40:48,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-20 11:40:48,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:48,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-20 11:40:48,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,001 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,002 INFO L175 Difference]: Start difference. First operand has 380 places, 813 transitions, 19301 flow. Second operand 20 states and 2766 transitions. [2022-11-20 11:40:49,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 956 transitions, 23274 flow [2022-11-20 11:40:49,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 956 transitions, 22797 flow, removed 233 selfloop flow, removed 6 redundant places. [2022-11-20 11:40:49,889 INFO L231 Difference]: Finished difference. Result has 397 places, 831 transitions, 20331 flow [2022-11-20 11:40:49,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20331, PETRI_PLACES=397, PETRI_TRANSITIONS=831} [2022-11-20 11:40:49,891 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2022-11-20 11:40:49,891 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 831 transitions, 20331 flow [2022-11-20 11:40:49,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:49,892 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:49,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:40:49,893 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:49,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1298826229, now seen corresponding path program 12 times [2022-11-20 11:40:49,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:49,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87651541] [2022-11-20 11:40:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:51,424 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 11:40:51,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:51,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87651541] [2022-11-20 11:40:51,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87651541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:51,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:51,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:51,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972668736] [2022-11-20 11:40:51,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:51,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:51,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:51,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:51,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:51,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:51,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 831 transitions, 20331 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:51,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:51,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:51,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:55,651 INFO L130 PetriNetUnfolder]: 2855/5518 cut-off events. [2022-11-20 11:40:55,651 INFO L131 PetriNetUnfolder]: For 218899/218899 co-relation queries the response was YES. [2022-11-20 11:40:55,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57582 conditions, 5518 events. 2855/5518 cut-off events. For 218899/218899 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 38008 event pairs, 211 based on Foata normal form. 8/5500 useless extension candidates. Maximal degree in co-relation 57337. Up to 3187 conditions per place. [2022-11-20 11:40:55,749 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 479 selfloop transitions, 399 changer transitions 0/989 dead transitions. [2022-11-20 11:40:55,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 989 transitions, 25653 flow [2022-11-20 11:40:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:40:55,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:40:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2505 transitions. [2022-11-20 11:40:55,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5634278002699056 [2022-11-20 11:40:55,754 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2505 transitions. [2022-11-20 11:40:55,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2505 transitions. [2022-11-20 11:40:55,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:55,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2505 transitions. [2022-11-20 11:40:55,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.16666666666666) internal successors, (2505), 18 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,767 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,767 INFO L175 Difference]: Start difference. First operand has 397 places, 831 transitions, 20331 flow. Second operand 18 states and 2505 transitions. [2022-11-20 11:40:55,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 989 transitions, 25653 flow [2022-11-20 11:40:57,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 989 transitions, 25392 flow, removed 22 selfloop flow, removed 14 redundant places. [2022-11-20 11:40:57,259 INFO L231 Difference]: Finished difference. Result has 407 places, 909 transitions, 24471 flow [2022-11-20 11:40:57,260 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20088, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24471, PETRI_PLACES=407, PETRI_TRANSITIONS=909} [2022-11-20 11:40:57,261 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 162 predicate places. [2022-11-20 11:40:57,261 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 909 transitions, 24471 flow [2022-11-20 11:40:57,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,262 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:57,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:57,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:40:57,263 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:40:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:57,264 INFO L85 PathProgramCache]: Analyzing trace with hash -656161895, now seen corresponding path program 13 times [2022-11-20 11:40:57,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:57,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141095658] [2022-11-20 11:40:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:59,175 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 11:40:59,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:59,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141095658] [2022-11-20 11:40:59,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141095658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:59,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:59,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:40:59,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138524381] [2022-11-20 11:40:59,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:59,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:40:59,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:40:59,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:40:59,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:40:59,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 909 transitions, 24471 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:59,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:40:59,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:04,419 INFO L130 PetriNetUnfolder]: 3275/6346 cut-off events. [2022-11-20 11:41:04,419 INFO L131 PetriNetUnfolder]: For 299028/299056 co-relation queries the response was YES. [2022-11-20 11:41:04,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70470 conditions, 6346 events. 3275/6346 cut-off events. For 299028/299056 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 44749 event pairs, 264 based on Foata normal form. 8/6327 useless extension candidates. Maximal degree in co-relation 70218. Up to 3656 conditions per place. [2022-11-20 11:41:04,539 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 565 selfloop transitions, 471 changer transitions 0/1147 dead transitions. [2022-11-20 11:41:04,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1147 transitions, 33211 flow [2022-11-20 11:41:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:41:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:41:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-20 11:41:04,541 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-20 11:41:04,541 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-20 11:41:04,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-20 11:41:04,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:04,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-20 11:41:04,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,552 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,552 INFO L175 Difference]: Start difference. First operand has 407 places, 909 transitions, 24471 flow. Second operand 20 states and 2767 transitions. [2022-11-20 11:41:04,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1147 transitions, 33211 flow [2022-11-20 11:41:05,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1147 transitions, 32996 flow, removed 78 selfloop flow, removed 9 redundant places. [2022-11-20 11:41:05,995 INFO L231 Difference]: Finished difference. Result has 426 places, 1050 transitions, 31827 flow [2022-11-20 11:41:05,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=24270, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=355, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=31827, PETRI_PLACES=426, PETRI_TRANSITIONS=1050} [2022-11-20 11:41:05,996 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 181 predicate places. [2022-11-20 11:41:05,997 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1050 transitions, 31827 flow [2022-11-20 11:41:05,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:05,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:05,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:05,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:41:05,998 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:41:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1946043831, now seen corresponding path program 14 times [2022-11-20 11:41:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:05,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327370882] [2022-11-20 11:41:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:05,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:07,706 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 11:41:07,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:07,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327370882] [2022-11-20 11:41:07,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327370882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:07,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:41:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959774844] [2022-11-20 11:41:07,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:07,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:41:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:41:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:41:07,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:41:07,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1050 transitions, 31827 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:07,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:07,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:41:07,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:13,456 INFO L130 PetriNetUnfolder]: 3463/6799 cut-off events. [2022-11-20 11:41:13,457 INFO L131 PetriNetUnfolder]: For 370237/370251 co-relation queries the response was YES. [2022-11-20 11:41:13,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79066 conditions, 6799 events. 3463/6799 cut-off events. For 370237/370251 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 49594 event pairs, 438 based on Foata normal form. 11/6785 useless extension candidates. Maximal degree in co-relation 78805. Up to 3599 conditions per place. [2022-11-20 11:41:13,580 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 534 selfloop transitions, 588 changer transitions 0/1233 dead transitions. [2022-11-20 11:41:13,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1233 transitions, 38708 flow [2022-11-20 11:41:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:41:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:41:13,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-20 11:41:13,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-20 11:41:13,584 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-20 11:41:13,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-20 11:41:13,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:13,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-20 11:41:13,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:13,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:13,595 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:13,595 INFO L175 Difference]: Start difference. First operand has 426 places, 1050 transitions, 31827 flow. Second operand 20 states and 2767 transitions. [2022-11-20 11:41:13,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1233 transitions, 38708 flow [2022-11-20 11:41:16,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1233 transitions, 38293 flow, removed 185 selfloop flow, removed 8 redundant places. [2022-11-20 11:41:16,088 INFO L231 Difference]: Finished difference. Result has 447 places, 1148 transitions, 37113 flow [2022-11-20 11:41:16,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=31413, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=494, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37113, PETRI_PLACES=447, PETRI_TRANSITIONS=1148} [2022-11-20 11:41:16,090 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 202 predicate places. [2022-11-20 11:41:16,090 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 1148 transitions, 37113 flow [2022-11-20 11:41:16,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:16,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:16,091 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:16,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:41:16,092 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:41:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:16,092 INFO L85 PathProgramCache]: Analyzing trace with hash 944467097, now seen corresponding path program 15 times [2022-11-20 11:41:16,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:16,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501399108] [2022-11-20 11:41:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:16,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:17,480 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 11:41:17,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:17,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501399108] [2022-11-20 11:41:17,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501399108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:17,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:17,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:41:17,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649396937] [2022-11-20 11:41:17,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:17,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:41:17,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:17,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:41:17,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:41:17,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:41:17,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 1148 transitions, 37113 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:17,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:17,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:41:17,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:22,954 INFO L130 PetriNetUnfolder]: 3572/6897 cut-off events. [2022-11-20 11:41:22,954 INFO L131 PetriNetUnfolder]: For 420568/420582 co-relation queries the response was YES. [2022-11-20 11:41:23,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85664 conditions, 6897 events. 3572/6897 cut-off events. For 420568/420582 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 50021 event pairs, 217 based on Foata normal form. 14/6889 useless extension candidates. Maximal degree in co-relation 85393. Up to 4136 conditions per place. [2022-11-20 11:41:23,095 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 649 selfloop transitions, 521 changer transitions 0/1281 dead transitions. [2022-11-20 11:41:23,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1281 transitions, 42033 flow [2022-11-20 11:41:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:41:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:41:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2636 transitions. [2022-11-20 11:41:23,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.561687619859365 [2022-11-20 11:41:23,099 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2636 transitions. [2022-11-20 11:41:23,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2636 transitions. [2022-11-20 11:41:23,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:23,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2636 transitions. [2022-11-20 11:41:23,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.73684210526315) internal successors, (2636), 19 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:23,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:23,116 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:23,116 INFO L175 Difference]: Start difference. First operand has 447 places, 1148 transitions, 37113 flow. Second operand 19 states and 2636 transitions. [2022-11-20 11:41:23,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1281 transitions, 42033 flow [2022-11-20 11:41:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 1281 transitions, 41439 flow, removed 271 selfloop flow, removed 10 redundant places. [2022-11-20 11:41:26,070 INFO L231 Difference]: Finished difference. Result has 463 places, 1191 transitions, 40408 flow [2022-11-20 11:41:26,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=36519, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=480, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40408, PETRI_PLACES=463, PETRI_TRANSITIONS=1191} [2022-11-20 11:41:26,072 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 218 predicate places. [2022-11-20 11:41:26,072 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 1191 transitions, 40408 flow [2022-11-20 11:41:26,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:26,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:26,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:26,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:41:26,073 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:41:26,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1389237111, now seen corresponding path program 16 times [2022-11-20 11:41:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:26,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140108371] [2022-11-20 11:41:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:26,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:27,725 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 11:41:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140108371] [2022-11-20 11:41:27,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140108371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:27,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:27,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:41:27,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895683170] [2022-11-20 11:41:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:27,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:41:27,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:41:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:41:27,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:41:27,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1191 transitions, 40408 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:27,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:27,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:41:27,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:34,471 INFO L130 PetriNetUnfolder]: 3765/7244 cut-off events. [2022-11-20 11:41:34,471 INFO L131 PetriNetUnfolder]: For 482700/482756 co-relation queries the response was YES. [2022-11-20 11:41:34,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93379 conditions, 7244 events. 3765/7244 cut-off events. For 482700/482756 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 52461 event pairs, 279 based on Foata normal form. 10/7227 useless extension candidates. Maximal degree in co-relation 93100. Up to 4240 conditions per place. [2022-11-20 11:41:34,599 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 663 selfloop transitions, 559 changer transitions 0/1333 dead transitions. [2022-11-20 11:41:34,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1333 transitions, 46117 flow [2022-11-20 11:41:34,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:41:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:41:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2771 transitions. [2022-11-20 11:41:34,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5609311740890688 [2022-11-20 11:41:34,603 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2771 transitions. [2022-11-20 11:41:34,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2771 transitions. [2022-11-20 11:41:34,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:34,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2771 transitions. [2022-11-20 11:41:34,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.55) internal successors, (2771), 20 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,613 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,613 INFO L175 Difference]: Start difference. First operand has 463 places, 1191 transitions, 40408 flow. Second operand 20 states and 2771 transitions. [2022-11-20 11:41:34,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1333 transitions, 46117 flow [2022-11-20 11:41:37,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1333 transitions, 45886 flow, removed 80 selfloop flow, removed 9 redundant places. [2022-11-20 11:41:37,872 INFO L231 Difference]: Finished difference. Result has 479 places, 1244 transitions, 43972 flow [2022-11-20 11:41:37,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=40207, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43972, PETRI_PLACES=479, PETRI_TRANSITIONS=1244} [2022-11-20 11:41:37,873 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 234 predicate places. [2022-11-20 11:41:37,873 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1244 transitions, 43972 flow [2022-11-20 11:41:37,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:37,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:37,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:41:37,874 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:41:37,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash 540071919, now seen corresponding path program 17 times [2022-11-20 11:41:37,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:37,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479138108] [2022-11-20 11:41:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:37,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:39,548 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 11:41:39,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:39,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479138108] [2022-11-20 11:41:39,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479138108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:39,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:39,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:41:39,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121767622] [2022-11-20 11:41:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:39,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:41:39,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:41:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:41:39,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:41:39,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1244 transitions, 43972 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:39,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:41:39,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:46,932 INFO L130 PetriNetUnfolder]: 3854/7403 cut-off events. [2022-11-20 11:41:46,932 INFO L131 PetriNetUnfolder]: For 526859/526873 co-relation queries the response was YES. [2022-11-20 11:41:47,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98830 conditions, 7403 events. 3854/7403 cut-off events. For 526859/526873 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 54100 event pairs, 241 based on Foata normal form. 14/7395 useless extension candidates. Maximal degree in co-relation 98545. Up to 4314 conditions per place. [2022-11-20 11:41:47,049 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 679 selfloop transitions, 582 changer transitions 0/1372 dead transitions. [2022-11-20 11:41:47,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1372 transitions, 49160 flow [2022-11-20 11:41:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:41:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:41:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-20 11:41:47,053 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-20 11:41:47,053 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-20 11:41:47,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-20 11:41:47,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:47,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-20 11:41:47,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:47,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:47,062 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:47,062 INFO L175 Difference]: Start difference. First operand has 479 places, 1244 transitions, 43972 flow. Second operand 20 states and 2768 transitions. [2022-11-20 11:41:47,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1372 transitions, 49160 flow [2022-11-20 11:41:50,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1372 transitions, 48680 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-20 11:41:50,321 INFO L231 Difference]: Finished difference. Result has 493 places, 1283 transitions, 47063 flow [2022-11-20 11:41:50,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=43523, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=546, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=47063, PETRI_PLACES=493, PETRI_TRANSITIONS=1283} [2022-11-20 11:41:50,322 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 248 predicate places. [2022-11-20 11:41:50,322 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1283 transitions, 47063 flow [2022-11-20 11:41:50,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:50,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:50,323 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:50,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:41:50,323 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:41:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:50,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1889511119, now seen corresponding path program 18 times [2022-11-20 11:41:50,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:50,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191742861] [2022-11-20 11:41:50,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:50,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:51,706 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 11:41:51,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:51,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191742861] [2022-11-20 11:41:51,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191742861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:51,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:51,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:41:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760143234] [2022-11-20 11:41:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:51,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:41:51,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:51,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:41:51,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:41:51,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:41:51,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1283 transitions, 47063 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:51,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:51,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:41:51,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:59,109 INFO L130 PetriNetUnfolder]: 3894/7586 cut-off events. [2022-11-20 11:41:59,109 INFO L131 PetriNetUnfolder]: For 561977/562019 co-relation queries the response was YES. [2022-11-20 11:41:59,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103292 conditions, 7586 events. 3894/7586 cut-off events. For 561977/562019 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 56015 event pairs, 535 based on Foata normal form. 8/7560 useless extension candidates. Maximal degree in co-relation 103000. Up to 4454 conditions per place. [2022-11-20 11:41:59,383 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 691 selfloop transitions, 586 changer transitions 0/1388 dead transitions. [2022-11-20 11:41:59,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1388 transitions, 51081 flow [2022-11-20 11:41:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:41:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:41:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-20 11:41:59,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-20 11:41:59,389 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-20 11:41:59,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-20 11:41:59,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:59,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-20 11:41:59,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:59,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:59,403 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:59,404 INFO L175 Difference]: Start difference. First operand has 493 places, 1283 transitions, 47063 flow. Second operand 20 states and 2767 transitions. [2022-11-20 11:41:59,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1388 transitions, 51081 flow [2022-11-20 11:42:03,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1388 transitions, 50796 flow, removed 92 selfloop flow, removed 11 redundant places. [2022-11-20 11:42:03,426 INFO L231 Difference]: Finished difference. Result has 505 places, 1299 transitions, 49278 flow [2022-11-20 11:42:03,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=46800, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=49278, PETRI_PLACES=505, PETRI_TRANSITIONS=1299} [2022-11-20 11:42:03,428 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 260 predicate places. [2022-11-20 11:42:03,428 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 1299 transitions, 49278 flow [2022-11-20 11:42:03,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:03,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:03,429 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:03,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:42:03,429 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:42:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1453306673, now seen corresponding path program 19 times [2022-11-20 11:42:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:03,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526865119] [2022-11-20 11:42:03,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:03,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:04,860 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 11:42:04,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526865119] [2022-11-20 11:42:04,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526865119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:04,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:04,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:42:04,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110029667] [2022-11-20 11:42:04,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:04,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:42:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:42:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:42:04,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:42:04,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 1299 transitions, 49278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:04,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:04,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:42:04,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:12,786 INFO L130 PetriNetUnfolder]: 3898/7509 cut-off events. [2022-11-20 11:42:12,787 INFO L131 PetriNetUnfolder]: For 609217/609273 co-relation queries the response was YES. [2022-11-20 11:42:12,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106197 conditions, 7509 events. 3898/7509 cut-off events. For 609217/609273 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 55061 event pairs, 271 based on Foata normal form. 10/7491 useless extension candidates. Maximal degree in co-relation 105901. Up to 4472 conditions per place. [2022-11-20 11:42:13,032 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 702 selfloop transitions, 593 changer transitions 0/1406 dead transitions. [2022-11-20 11:42:13,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 1406 transitions, 53627 flow [2022-11-20 11:42:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:42:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:42:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2769 transitions. [2022-11-20 11:42:13,035 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5605263157894737 [2022-11-20 11:42:13,035 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2769 transitions. [2022-11-20 11:42:13,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2769 transitions. [2022-11-20 11:42:13,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:13,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2769 transitions. [2022-11-20 11:42:13,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.45) internal successors, (2769), 20 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states 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 11:42:13,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:13,043 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:13,043 INFO L175 Difference]: Start difference. First operand has 505 places, 1299 transitions, 49278 flow. Second operand 20 states and 2769 transitions. [2022-11-20 11:42:13,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 1406 transitions, 53627 flow [2022-11-20 11:42:17,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1406 transitions, 53114 flow, removed 157 selfloop flow, removed 13 redundant places. [2022-11-20 11:42:17,145 INFO L231 Difference]: Finished difference. Result has 516 places, 1324 transitions, 51333 flow [2022-11-20 11:42:17,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=48858, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=51333, PETRI_PLACES=516, PETRI_TRANSITIONS=1324} [2022-11-20 11:42:17,147 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 271 predicate places. [2022-11-20 11:42:17,148 INFO L495 AbstractCegarLoop]: Abstraction has has 516 places, 1324 transitions, 51333 flow [2022-11-20 11:42:17,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:17,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:17,148 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:17,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:42:17,149 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:42:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -304435319, now seen corresponding path program 20 times [2022-11-20 11:42:17,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:17,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107360879] [2022-11-20 11:42:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:18,473 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 11:42:18,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:18,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107360879] [2022-11-20 11:42:18,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107360879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:18,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:18,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:42:18,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293009291] [2022-11-20 11:42:18,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:18,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:42:18,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:42:18,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:42:18,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:42:18,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 1324 transitions, 51333 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:18,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:18,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:42:18,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:25,693 INFO L130 PetriNetUnfolder]: 3944/7687 cut-off events. [2022-11-20 11:42:25,694 INFO L131 PetriNetUnfolder]: For 637167/637209 co-relation queries the response was YES. [2022-11-20 11:42:25,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110121 conditions, 7687 events. 3944/7687 cut-off events. For 637167/637209 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 56993 event pairs, 617 based on Foata normal form. 8/7661 useless extension candidates. Maximal degree in co-relation 109820. Up to 4532 conditions per place. [2022-11-20 11:42:25,999 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 711 selfloop transitions, 599 changer transitions 0/1421 dead transitions. [2022-11-20 11:42:26,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1421 transitions, 55619 flow [2022-11-20 11:42:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:42:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:42:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-20 11:42:26,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-20 11:42:26,003 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-20 11:42:26,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-20 11:42:26,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:26,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-20 11:42:26,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:26,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:26,011 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:26,012 INFO L175 Difference]: Start difference. First operand has 516 places, 1324 transitions, 51333 flow. Second operand 19 states and 2631 transitions. [2022-11-20 11:42:26,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1421 transitions, 55619 flow [2022-11-20 11:42:30,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 1421 transitions, 55294 flow, removed 61 selfloop flow, removed 12 redundant places. [2022-11-20 11:42:30,108 INFO L231 Difference]: Finished difference. Result has 527 places, 1343 transitions, 53966 flow [2022-11-20 11:42:30,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=51014, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=580, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=53966, PETRI_PLACES=527, PETRI_TRANSITIONS=1343} [2022-11-20 11:42:30,110 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 282 predicate places. [2022-11-20 11:42:30,111 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1343 transitions, 53966 flow [2022-11-20 11:42:30,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:30,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:30,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:30,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:42:30,112 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:42:30,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:30,112 INFO L85 PathProgramCache]: Analyzing trace with hash 328509563, now seen corresponding path program 21 times [2022-11-20 11:42:30,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:30,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410608066] [2022-11-20 11:42:30,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:30,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:31,568 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 11:42:31,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:31,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410608066] [2022-11-20 11:42:31,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410608066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:31,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:31,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:42:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522331380] [2022-11-20 11:42:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:31,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:42:31,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:31,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:42:31,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:42:31,572 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:42:31,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1343 transitions, 53966 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:31,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:31,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:42:31,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:39,090 INFO L130 PetriNetUnfolder]: 3948/7597 cut-off events. [2022-11-20 11:42:39,091 INFO L131 PetriNetUnfolder]: For 689096/689110 co-relation queries the response was YES. [2022-11-20 11:42:39,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113258 conditions, 7597 events. 3948/7597 cut-off events. For 689096/689110 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 56094 event pairs, 253 based on Foata normal form. 14/7588 useless extension candidates. Maximal degree in co-relation 112952. Up to 4502 conditions per place. [2022-11-20 11:42:39,250 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 716 selfloop transitions, 615 changer transitions 0/1442 dead transitions. [2022-11-20 11:42:39,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1442 transitions, 58263 flow [2022-11-20 11:42:39,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:42:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:42:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-20 11:42:39,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-20 11:42:39,254 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-20 11:42:39,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-20 11:42:39,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:39,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-20 11:42:39,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:39,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:39,264 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:39,264 INFO L175 Difference]: Start difference. First operand has 527 places, 1343 transitions, 53966 flow. Second operand 20 states and 2766 transitions. [2022-11-20 11:42:39,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1442 transitions, 58263 flow [2022-11-20 11:42:43,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1442 transitions, 57570 flow, removed 246 selfloop flow, removed 12 redundant places. [2022-11-20 11:42:43,947 INFO L231 Difference]: Finished difference. Result has 538 places, 1363 transitions, 55767 flow [2022-11-20 11:42:43,947 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=53397, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=598, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=55767, PETRI_PLACES=538, PETRI_TRANSITIONS=1363} [2022-11-20 11:42:43,948 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 293 predicate places. [2022-11-20 11:42:43,948 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 1363 transitions, 55767 flow [2022-11-20 11:42:43,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:43,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:43,949 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:43,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:42:43,950 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:42:43,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash -962838995, now seen corresponding path program 22 times [2022-11-20 11:42:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:43,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494703420] [2022-11-20 11:42:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:43,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:42:45,313 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 11:42:45,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:42:45,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494703420] [2022-11-20 11:42:45,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494703420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:42:45,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:42:45,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:42:45,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948019888] [2022-11-20 11:42:45,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:42:45,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:42:45,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:42:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:42:45,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:42:45,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:42:45,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1363 transitions, 55767 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:45,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:42:45,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:42:45,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:42:53,593 INFO L130 PetriNetUnfolder]: 4148/7972 cut-off events. [2022-11-20 11:42:53,594 INFO L131 PetriNetUnfolder]: For 748059/748073 co-relation queries the response was YES. [2022-11-20 11:42:53,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121345 conditions, 7972 events. 4148/7972 cut-off events. For 748059/748073 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 59384 event pairs, 477 based on Foata normal form. 11/7958 useless extension candidates. Maximal degree in co-relation 121035. Up to 4513 conditions per place. [2022-11-20 11:42:53,778 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 671 selfloop transitions, 728 changer transitions 0/1510 dead transitions. [2022-11-20 11:42:53,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1510 transitions, 62574 flow [2022-11-20 11:42:53,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 11:42:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 11:42:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2775 transitions. [2022-11-20 11:42:53,781 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5617408906882592 [2022-11-20 11:42:53,781 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2775 transitions. [2022-11-20 11:42:53,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2775 transitions. [2022-11-20 11:42:53,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:42:53,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2775 transitions. [2022-11-20 11:42:53,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.75) internal successors, (2775), 20 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states 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 11:42:53,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,789 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:53,789 INFO L175 Difference]: Start difference. First operand has 538 places, 1363 transitions, 55767 flow. Second operand 20 states and 2775 transitions. [2022-11-20 11:42:53,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1510 transitions, 62574 flow [2022-11-20 11:42:58,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1510 transitions, 62306 flow, removed 27 selfloop flow, removed 13 redundant places. [2022-11-20 11:42:59,031 INFO L231 Difference]: Finished difference. Result has 553 places, 1436 transitions, 61465 flow [2022-11-20 11:42:59,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=55499, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=662, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61465, PETRI_PLACES=553, PETRI_TRANSITIONS=1436} [2022-11-20 11:42:59,032 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 308 predicate places. [2022-11-20 11:42:59,032 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1436 transitions, 61465 flow [2022-11-20 11:42:59,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:42:59,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:42:59,033 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:42:59,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:42:59,034 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:42:59,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:42:59,034 INFO L85 PathProgramCache]: Analyzing trace with hash 747870101, now seen corresponding path program 23 times [2022-11-20 11:42:59,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:42:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470628502] [2022-11-20 11:42:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:42:59,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:42:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:00,232 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 11:43:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:00,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470628502] [2022-11-20 11:43:00,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470628502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:00,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:00,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:43:00,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786931839] [2022-11-20 11:43:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:00,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:43:00,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:00,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:43:00,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:43:00,236 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:43:00,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1436 transitions, 61465 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:00,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:00,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:43:00,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:08,287 INFO L130 PetriNetUnfolder]: 4194/8053 cut-off events. [2022-11-20 11:43:08,287 INFO L131 PetriNetUnfolder]: For 827399/827455 co-relation queries the response was YES. [2022-11-20 11:43:08,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126879 conditions, 8053 events. 4194/8053 cut-off events. For 827399/827455 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 59670 event pairs, 653 based on Foata normal form. 8/8029 useless extension candidates. Maximal degree in co-relation 126560. Up to 4535 conditions per place. [2022-11-20 11:43:08,483 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 668 selfloop transitions, 750 changer transitions 0/1529 dead transitions. [2022-11-20 11:43:08,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 1529 transitions, 66095 flow [2022-11-20 11:43:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:43:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 11:43:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-20 11:43:08,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-20 11:43:08,486 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-20 11:43:08,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-20 11:43:08,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:08,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-20 11:43:08,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:08,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:08,491 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:08,491 INFO L175 Difference]: Start difference. First operand has 553 places, 1436 transitions, 61465 flow. Second operand 19 states and 2631 transitions. [2022-11-20 11:43:08,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 1529 transitions, 66095 flow [2022-11-20 11:43:13,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 1529 transitions, 65358 flow, removed 253 selfloop flow, removed 10 redundant places. [2022-11-20 11:43:13,867 INFO L231 Difference]: Finished difference. Result has 567 places, 1458 transitions, 64415 flow [2022-11-20 11:43:13,868 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=60761, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=64415, PETRI_PLACES=567, PETRI_TRANSITIONS=1458} [2022-11-20 11:43:13,868 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 322 predicate places. [2022-11-20 11:43:13,868 INFO L495 AbstractCegarLoop]: Abstraction has has 567 places, 1458 transitions, 64415 flow [2022-11-20 11:43:13,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:13,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:43:13,869 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:43:13,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:43:13,869 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-20 11:43:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:43:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1780444621, now seen corresponding path program 24 times [2022-11-20 11:43:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:43:13,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843119359] [2022-11-20 11:43:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:43:13,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:43:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:43:15,055 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 11:43:15,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:43:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843119359] [2022-11-20 11:43:15,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843119359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:43:15,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:43:15,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:43:15,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155161372] [2022-11-20 11:43:15,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:43:15,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:43:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:43:15,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:43:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:43:15,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-20 11:43:15,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 1458 transitions, 64415 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:15,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:43:15,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-20 11:43:15,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:43:23,307 INFO L130 PetriNetUnfolder]: 4262/8194 cut-off events. [2022-11-20 11:43:23,307 INFO L131 PetriNetUnfolder]: For 900178/900192 co-relation queries the response was YES. [2022-11-20 11:43:23,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132391 conditions, 8194 events. 4262/8194 cut-off events. For 900178/900192 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 61327 event pairs, 485 based on Foata normal form. 11/8179 useless extension candidates. Maximal degree in co-relation 132066. Up to 4661 conditions per place. [2022-11-20 11:43:23,543 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 693 selfloop transitions, 754 changer transitions 0/1558 dead transitions. [2022-11-20 11:43:23,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1558 transitions, 69614 flow [2022-11-20 11:43:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:43:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:43:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2503 transitions. [2022-11-20 11:43:23,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5629779577147999 [2022-11-20 11:43:23,547 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2503 transitions. [2022-11-20 11:43:23,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2503 transitions. [2022-11-20 11:43:23,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:43:23,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2503 transitions. [2022-11-20 11:43:23,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.05555555555554) internal successors, (2503), 18 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 11:43:23,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,552 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:43:23,553 INFO L175 Difference]: Start difference. First operand has 567 places, 1458 transitions, 64415 flow. Second operand 18 states and 2503 transitions. [2022-11-20 11:43:23,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1558 transitions, 69614 flow