./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:57:04,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:57:04,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:57:04,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:57:04,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:57:04,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:57:04,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:57:04,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:57:04,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:57:04,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:57:04,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:57:04,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:57:04,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:57:04,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:57:04,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:57:04,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:57:04,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:57:04,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:57:04,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:57:04,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:57:04,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:57:04,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:57:04,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:57:04,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:57:04,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:57:04,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:57:04,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:57:04,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:57:04,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:57:04,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:57:04,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:57:04,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:57:04,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:57:04,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:57:04,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:57:04,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:57:04,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:57:04,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:57:04,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:57:04,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:57:04,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:57:04,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 22:57:04,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:57:04,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:57:04,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:57:04,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:57:04,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:57:04,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:57:04,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:57:04,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:57:04,313 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:57:04,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:57:04,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:57:04,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:57:04,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:57:04,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:57:04,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:57:04,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:57:04,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:57:04,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:57:04,315 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 22:57:04,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:57:04,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:57:04,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:57:04,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:57:04,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:57:04,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:57:04,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:57:04,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:57:04,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:57:04,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:57:04,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:57:04,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:57:04,319 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_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2021-12-06 22:57:04,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:57:04,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:57:04,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:57:04,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:57:04,531 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:57:04,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-12-06 22:57:04,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/data/c53c3f7a2/f46e1f6eb0a347a897cec5952503bce4/FLAG3b91a5ef4 [2021-12-06 22:57:05,007 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:57:05,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2021-12-06 22:57:05,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/data/c53c3f7a2/f46e1f6eb0a347a897cec5952503bce4/FLAG3b91a5ef4 [2021-12-06 22:57:05,033 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/data/c53c3f7a2/f46e1f6eb0a347a897cec5952503bce4 [2021-12-06 22:57:05,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:57:05,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:57:05,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:05,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:57:05,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:57:05,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fb3e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05, skipping insertion in model container [2021-12-06 22:57:05,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:57:05,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:57:05,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:05,359 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:57:05,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:05,433 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:57:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05 WrapperNode [2021-12-06 22:57:05,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:05,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:05,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:57:05,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:57:05,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,473 INFO L137 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2021-12-06 22:57:05,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:05,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:57:05,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:57:05,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:57:05,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:57:05,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:57:05,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:57:05,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:57:05,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (1/1) ... [2021-12-06 22:57:05,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:57:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:05,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:57:05,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:57:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 22:57:05,558 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 22:57:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:57:05,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:57:05,560 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 22:57:05,640 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:57:05,641 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:57:05,797 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:57:05,804 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:57:05,805 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 22:57:05,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:05 BoogieIcfgContainer [2021-12-06 22:57:05,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:57:05,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:57:05,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:57:05,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:57:05,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:57:05" (1/3) ... [2021-12-06 22:57:05,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c79bac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:57:05, skipping insertion in model container [2021-12-06 22:57:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:05" (2/3) ... [2021-12-06 22:57:05,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c79bac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:57:05, skipping insertion in model container [2021-12-06 22:57:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:05" (3/3) ... [2021-12-06 22:57:05,812 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2021-12-06 22:57:05,816 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 22:57:05,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:57:05,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-06 22:57:05,816 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 22:57:05,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,839 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,840 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,841 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,842 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,858 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,860 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:57:05,864 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-06 22:57:05,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:57:05,905 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:57:05,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-06 22:57:05,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2021-12-06 22:57:05,950 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2021-12-06 22:57:05,950 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:57:05,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-12-06 22:57:05,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2021-12-06 22:57:05,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2021-12-06 22:57:05,967 INFO L129 PetriNetUnfolder]: 4/56 cut-off events. [2021-12-06 22:57:05,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 22:57:05,967 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:05,968 INFO L254 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] [2021-12-06 22:57:05,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2021-12-06 22:57:05,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:05,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497333768] [2021-12-06 22:57:05,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:05,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:06,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:06,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497333768] [2021-12-06 22:57:06,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497333768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:06,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:06,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:57:06,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959562293] [2021-12-06 22:57:06,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:06,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:57:06,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:57:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:57:06,155 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2021-12-06 22:57:06,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:06,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2021-12-06 22:57:06,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:06,200 INFO L129 PetriNetUnfolder]: 1/106 cut-off events. [2021-12-06 22:57:06,200 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:57:06,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 106 events. 1/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 2/101 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2021-12-06 22:57:06,202 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 10 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2021-12-06 22:57:06,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 239 flow [2021-12-06 22:57:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:57:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 22:57:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2021-12-06 22:57:06,216 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.949685534591195 [2021-12-06 22:57:06,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2021-12-06 22:57:06,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2021-12-06 22:57:06,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:06,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2021-12-06 22:57:06,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,232 INFO L186 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 3 states and 302 transitions. [2021-12-06 22:57:06,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 239 flow [2021-12-06 22:57:06,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 22:57:06,239 INFO L242 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2021-12-06 22:57:06,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2021-12-06 22:57:06,244 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2021-12-06 22:57:06,244 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2021-12-06 22:57:06,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,244 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:06,245 INFO L254 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] [2021-12-06 22:57:06,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:57:06,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:06,246 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2021-12-06 22:57:06,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:06,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984110038] [2021-12-06 22:57:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:06,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:06,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:06,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984110038] [2021-12-06 22:57:06,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984110038] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:57:06,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039270076] [2021-12-06 22:57:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:06,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:06,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:06,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:57:06,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:57:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:06,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:57:06,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:57:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:06,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:57:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:06,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039270076] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:57:06,560 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:57:06,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 22:57:06,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916808697] [2021-12-06 22:57:06,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:57:06,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:06,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:06,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-12-06 22:57:06,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:06,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-12-06 22:57:06,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:06,633 INFO L129 PetriNetUnfolder]: 1/112 cut-off events. [2021-12-06 22:57:06,633 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 22:57:06,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place. [2021-12-06 22:57:06,634 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2021-12-06 22:57:06,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 278 flow [2021-12-06 22:57:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:57:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 22:57:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2021-12-06 22:57:06,638 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2021-12-06 22:57:06,638 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2021-12-06 22:57:06,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2021-12-06 22:57:06,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:06,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2021-12-06 22:57:06,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,648 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,648 INFO L186 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2021-12-06 22:57:06,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 278 flow [2021-12-06 22:57:06,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 22:57:06,651 INFO L242 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2021-12-06 22:57:06,651 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2021-12-06 22:57:06,652 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 11 predicate places. [2021-12-06 22:57:06,652 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2021-12-06 22:57:06,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:06,653 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:06,653 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:06,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:57:06,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:06,856 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2021-12-06 22:57:06,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:06,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87251509] [2021-12-06 22:57:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:06,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:07,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:07,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87251509] [2021-12-06 22:57:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87251509] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:57:07,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451041768] [2021-12-06 22:57:07,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:57:07,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:07,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:07,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:57:07,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 22:57:07,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 22:57:07,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:57:07,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 22:57:07,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:57:07,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 22:57:07,216 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-12-06 22:57:07,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-12-06 22:57:07,254 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-12-06 22:57:07,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2021-12-06 22:57:07,299 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-12-06 22:57:07,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 57 [2021-12-06 22:57:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 22:57:07,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:57:07,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451041768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:07,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 22:57:07,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-12-06 22:57:07,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963634016] [2021-12-06 22:57:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:07,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:57:07,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:57:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-12-06 22:57:07,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 106 [2021-12-06 22:57:07,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:07,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:07,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 106 [2021-12-06 22:57:07,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:07,604 INFO L129 PetriNetUnfolder]: 231/750 cut-off events. [2021-12-06 22:57:07,604 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-12-06 22:57:07,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 750 events. 231/750 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4028 event pairs, 103 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1225. Up to 361 conditions per place. [2021-12-06 22:57:07,612 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 72 selfloop transitions, 22 changer transitions 0/166 dead transitions. [2021-12-06 22:57:07,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 166 transitions, 568 flow [2021-12-06 22:57:07,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:57:07,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:57:07,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2021-12-06 22:57:07,614 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7814465408805031 [2021-12-06 22:57:07,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2021-12-06 22:57:07,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2021-12-06 22:57:07,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:07,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2021-12-06 22:57:07,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:07,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:07,620 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:07,620 INFO L186 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 6 states and 497 transitions. [2021-12-06 22:57:07,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 166 transitions, 568 flow [2021-12-06 22:57:07,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 166 transitions, 562 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-12-06 22:57:07,627 INFO L242 Difference]: Finished difference. Result has 125 places, 129 transitions, 408 flow [2021-12-06 22:57:07,627 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2021-12-06 22:57:07,628 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2021-12-06 22:57:07,628 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 408 flow [2021-12-06 22:57:07,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:07,629 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:07,629 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:07,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 22:57:07,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:07,831 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:07,833 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2021-12-06 22:57:07,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:07,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428504305] [2021-12-06 22:57:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:07,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:08,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:08,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428504305] [2021-12-06 22:57:08,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428504305] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:57:08,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010341104] [2021-12-06 22:57:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:08,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:08,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:08,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:57:08,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 22:57:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:08,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 22:57:08,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:57:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:08,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:57:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:08,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010341104] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:57:08,235 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:57:08,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-06 22:57:08,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698270799] [2021-12-06 22:57:08,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:57:08,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 22:57:08,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:08,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 22:57:08,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-12-06 22:57:08,239 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-12-06 22:57:08,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 408 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:08,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-12-06 22:57:08,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:08,390 INFO L129 PetriNetUnfolder]: 40/293 cut-off events. [2021-12-06 22:57:08,390 INFO L130 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2021-12-06 22:57:08,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 293 events. 40/293 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 865 event pairs, 4 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 398. Up to 49 conditions per place. [2021-12-06 22:57:08,393 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/153 dead transitions. [2021-12-06 22:57:08,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 588 flow [2021-12-06 22:57:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 22:57:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-12-06 22:57:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2021-12-06 22:57:08,398 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2021-12-06 22:57:08,398 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2021-12-06 22:57:08,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2021-12-06 22:57:08,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:08,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2021-12-06 22:57:08,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,409 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,409 INFO L186 Difference]: Start difference. First operand has 125 places, 129 transitions, 408 flow. Second operand 21 states and 2018 transitions. [2021-12-06 22:57:08,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 588 flow [2021-12-06 22:57:08,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:57:08,415 INFO L242 Difference]: Finished difference. Result has 150 places, 142 transitions, 538 flow [2021-12-06 22:57:08,415 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=538, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2021-12-06 22:57:08,416 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 45 predicate places. [2021-12-06 22:57:08,416 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 538 flow [2021-12-06 22:57:08,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,417 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:08,417 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:08,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 22:57:08,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:08,618 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:08,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:08,618 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2021-12-06 22:57:08,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:08,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464511138] [2021-12-06 22:57:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:08,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:08,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464511138] [2021-12-06 22:57:08,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464511138] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:57:08,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661982446] [2021-12-06 22:57:08,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:57:08,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:08,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:08,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:57:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 22:57:08,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 22:57:08,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:57:08,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 22:57:08,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:57:08,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-06 22:57:08,870 INFO L354 Elim1Store]: treesize reduction 39, result has 22.0 percent of original size [2021-12-06 22:57:08,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-12-06 22:57:08,900 INFO L354 Elim1Store]: treesize reduction 96, result has 20.0 percent of original size [2021-12-06 22:57:08,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2021-12-06 22:57:08,938 INFO L354 Elim1Store]: treesize reduction 172, result has 17.3 percent of original size [2021-12-06 22:57:08,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 57 [2021-12-06 22:57:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-06 22:57:08,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:57:08,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661982446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:08,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 22:57:08,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-12-06 22:57:08,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607256862] [2021-12-06 22:57:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:08,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:57:08,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:57:08,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-12-06 22:57:08,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2021-12-06 22:57:08,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:08,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:08,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2021-12-06 22:57:08,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:09,261 INFO L129 PetriNetUnfolder]: 315/1037 cut-off events. [2021-12-06 22:57:09,261 INFO L130 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2021-12-06 22:57:09,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 1037 events. 315/1037 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6045 event pairs, 133 based on Foata normal form. 4/963 useless extension candidates. Maximal degree in co-relation 2012. Up to 572 conditions per place. [2021-12-06 22:57:09,269 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 73 selfloop transitions, 39 changer transitions 5/199 dead transitions. [2021-12-06 22:57:09,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 199 transitions, 916 flow [2021-12-06 22:57:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:57:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:57:09,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2021-12-06 22:57:09,271 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2021-12-06 22:57:09,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2021-12-06 22:57:09,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2021-12-06 22:57:09,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:09,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2021-12-06 22:57:09,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:09,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:09,274 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:09,274 INFO L186 Difference]: Start difference. First operand has 150 places, 142 transitions, 538 flow. Second operand 6 states and 486 transitions. [2021-12-06 22:57:09,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 199 transitions, 916 flow [2021-12-06 22:57:09,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 199 transitions, 892 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-12-06 22:57:09,281 INFO L242 Difference]: Finished difference. Result has 154 places, 178 transitions, 802 flow [2021-12-06 22:57:09,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=154, PETRI_TRANSITIONS=178} [2021-12-06 22:57:09,282 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 49 predicate places. [2021-12-06 22:57:09,282 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 178 transitions, 802 flow [2021-12-06 22:57:09,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:09,282 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:09,282 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:09,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 22:57:09,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:09,484 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2021-12-06 22:57:09,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:09,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599787331] [2021-12-06 22:57:09,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:09,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:09,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:09,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599787331] [2021-12-06 22:57:09,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599787331] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:57:09,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326421061] [2021-12-06 22:57:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:09,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:09,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:09,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:57:09,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 22:57:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:09,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 22:57:09,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:57:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:09,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:57:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:57:09,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326421061] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:57:09,909 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:57:09,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-12-06 22:57:09,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491380144] [2021-12-06 22:57:09,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:57:09,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 22:57:09,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 22:57:09,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-12-06 22:57:09,915 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2021-12-06 22:57:09,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 178 transitions, 802 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:09,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:09,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2021-12-06 22:57:09,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:10,137 INFO L129 PetriNetUnfolder]: 99/542 cut-off events. [2021-12-06 22:57:10,137 INFO L130 PetriNetUnfolder]: For 301/312 co-relation queries the response was YES. [2021-12-06 22:57:10,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 542 events. 99/542 cut-off events. For 301/312 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2635 event pairs, 8 based on Foata normal form. 7/529 useless extension candidates. Maximal degree in co-relation 976. Up to 116 conditions per place. [2021-12-06 22:57:10,141 INFO L132 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2021-12-06 22:57:10,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 204 transitions, 1052 flow [2021-12-06 22:57:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 22:57:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-12-06 22:57:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2021-12-06 22:57:10,148 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2021-12-06 22:57:10,148 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2021-12-06 22:57:10,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2021-12-06 22:57:10,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:10,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2021-12-06 22:57:10,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,162 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,162 INFO L186 Difference]: Start difference. First operand has 154 places, 178 transitions, 802 flow. Second operand 30 states and 2878 transitions. [2021-12-06 22:57:10,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 204 transitions, 1052 flow [2021-12-06 22:57:10,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 204 transitions, 1020 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-12-06 22:57:10,168 INFO L242 Difference]: Finished difference. Result has 186 places, 188 transitions, 922 flow [2021-12-06 22:57:10,169 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=922, PETRI_PLACES=186, PETRI_TRANSITIONS=188} [2021-12-06 22:57:10,169 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 81 predicate places. [2021-12-06 22:57:10,169 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 188 transitions, 922 flow [2021-12-06 22:57:10,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,170 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:10,171 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:10,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 22:57:10,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1b005b-4eb5-4bbd-8a03-5fcdb46dbead/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:57:10,372 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:10,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2021-12-06 22:57:10,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:10,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128165166] [2021-12-06 22:57:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:10,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:10,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:10,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128165166] [2021-12-06 22:57:10,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128165166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:10,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:10,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:57:10,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949059765] [2021-12-06 22:57:10,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:10,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:57:10,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:10,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:57:10,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:57:10,585 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 106 [2021-12-06 22:57:10,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 188 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:10,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 106 [2021-12-06 22:57:10,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:10,828 INFO L129 PetriNetUnfolder]: 321/1097 cut-off events. [2021-12-06 22:57:10,828 INFO L130 PetriNetUnfolder]: For 778/786 co-relation queries the response was YES. [2021-12-06 22:57:10,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1097 events. 321/1097 cut-off events. For 778/786 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6394 event pairs, 77 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2626. Up to 538 conditions per place. [2021-12-06 22:57:10,836 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 108 selfloop transitions, 40 changer transitions 0/249 dead transitions. [2021-12-06 22:57:10,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 249 transitions, 1544 flow [2021-12-06 22:57:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:57:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:57:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2021-12-06 22:57:10,838 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2021-12-06 22:57:10,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2021-12-06 22:57:10,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2021-12-06 22:57:10,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:10,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2021-12-06 22:57:10,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,841 INFO L186 Difference]: Start difference. First operand has 186 places, 188 transitions, 922 flow. Second operand 6 states and 519 transitions. [2021-12-06 22:57:10,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 249 transitions, 1544 flow [2021-12-06 22:57:10,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 249 transitions, 1498 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-12-06 22:57:10,850 INFO L242 Difference]: Finished difference. Result has 178 places, 219 transitions, 1244 flow [2021-12-06 22:57:10,851 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1244, PETRI_PLACES=178, PETRI_TRANSITIONS=219} [2021-12-06 22:57:10,851 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 73 predicate places. [2021-12-06 22:57:10,851 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 219 transitions, 1244 flow [2021-12-06 22:57:10,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,852 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:10,852 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:10,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:57:10,852 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2021-12-06 22:57:10,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:10,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602331134] [2021-12-06 22:57:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:10,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:10,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602331134] [2021-12-06 22:57:10,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602331134] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:10,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:10,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:57:10,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325139213] [2021-12-06 22:57:10,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:10,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:57:10,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:10,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:57:10,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:57:10,935 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 106 [2021-12-06 22:57:10,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 219 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:10,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:10,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 106 [2021-12-06 22:57:10,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:11,263 INFO L129 PetriNetUnfolder]: 432/1376 cut-off events. [2021-12-06 22:57:11,263 INFO L130 PetriNetUnfolder]: For 1520/1527 co-relation queries the response was YES. [2021-12-06 22:57:11,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 1376 events. 432/1376 cut-off events. For 1520/1527 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8469 event pairs, 122 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 3838. Up to 770 conditions per place. [2021-12-06 22:57:11,277 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 115 selfloop transitions, 58 changer transitions 18/290 dead transitions. [2021-12-06 22:57:11,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 290 transitions, 2038 flow [2021-12-06 22:57:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:57:11,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:57:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2021-12-06 22:57:11,279 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8050314465408805 [2021-12-06 22:57:11,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2021-12-06 22:57:11,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2021-12-06 22:57:11,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:11,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2021-12-06 22:57:11,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:11,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:11,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:11,283 INFO L186 Difference]: Start difference. First operand has 178 places, 219 transitions, 1244 flow. Second operand 6 states and 512 transitions. [2021-12-06 22:57:11,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 290 transitions, 2038 flow [2021-12-06 22:57:11,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 290 transitions, 2020 flow, removed 9 selfloop flow, removed 0 redundant places. [2021-12-06 22:57:11,302 INFO L242 Difference]: Finished difference. Result has 188 places, 260 transitions, 1746 flow [2021-12-06 22:57:11,303 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1746, PETRI_PLACES=188, PETRI_TRANSITIONS=260} [2021-12-06 22:57:11,303 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 83 predicate places. [2021-12-06 22:57:11,304 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 260 transitions, 1746 flow [2021-12-06 22:57:11,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:11,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:11,304 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:11,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 22:57:11,304 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:11,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:11,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1228962851, now seen corresponding path program 1 times [2021-12-06 22:57:11,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:11,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71655510] [2021-12-06 22:57:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:11,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:12,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:12,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71655510] [2021-12-06 22:57:12,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71655510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:12,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:12,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:12,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633338690] [2021-12-06 22:57:12,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:12,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:12,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:12,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:12,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:12,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:12,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 260 transitions, 1746 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:12,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:12,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:12,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:14,113 INFO L129 PetriNetUnfolder]: 1479/3678 cut-off events. [2021-12-06 22:57:14,113 INFO L130 PetriNetUnfolder]: For 6383/6383 co-relation queries the response was YES. [2021-12-06 22:57:14,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12991 conditions, 3678 events. 1479/3678 cut-off events. For 6383/6383 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 26889 event pairs, 126 based on Foata normal form. 2/3657 useless extension candidates. Maximal degree in co-relation 12767. Up to 879 conditions per place. [2021-12-06 22:57:14,142 INFO L132 encePairwiseOnDemand]: 77/106 looper letters, 418 selfloop transitions, 150 changer transitions 62/711 dead transitions. [2021-12-06 22:57:14,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 711 transitions, 6136 flow [2021-12-06 22:57:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 22:57:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-12-06 22:57:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1469 transitions. [2021-12-06 22:57:14,147 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6299313893653516 [2021-12-06 22:57:14,147 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1469 transitions. [2021-12-06 22:57:14,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1469 transitions. [2021-12-06 22:57:14,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:14,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1469 transitions. [2021-12-06 22:57:14,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 66.77272727272727) internal successors, (1469), 22 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:14,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:14,154 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:14,154 INFO L186 Difference]: Start difference. First operand has 188 places, 260 transitions, 1746 flow. Second operand 22 states and 1469 transitions. [2021-12-06 22:57:14,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 711 transitions, 6136 flow [2021-12-06 22:57:14,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 711 transitions, 5960 flow, removed 88 selfloop flow, removed 0 redundant places. [2021-12-06 22:57:14,197 INFO L242 Difference]: Finished difference. Result has 226 places, 401 transitions, 3423 flow [2021-12-06 22:57:14,198 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3423, PETRI_PLACES=226, PETRI_TRANSITIONS=401} [2021-12-06 22:57:14,198 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 121 predicate places. [2021-12-06 22:57:14,198 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 401 transitions, 3423 flow [2021-12-06 22:57:14,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:14,199 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:14,199 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:14,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 22:57:14,199 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash -310982600, now seen corresponding path program 1 times [2021-12-06 22:57:14,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:14,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180186193] [2021-12-06 22:57:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:14,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:14,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:14,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180186193] [2021-12-06 22:57:14,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180186193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:14,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:14,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:57:14,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183050030] [2021-12-06 22:57:14,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:14,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 22:57:14,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:14,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 22:57:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-06 22:57:14,578 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-12-06 22:57:14,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 401 transitions, 3423 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:14,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:14,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-12-06 22:57:14,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:16,100 INFO L129 PetriNetUnfolder]: 1699/4872 cut-off events. [2021-12-06 22:57:16,101 INFO L130 PetriNetUnfolder]: For 16276/16304 co-relation queries the response was YES. [2021-12-06 22:57:16,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20307 conditions, 4872 events. 1699/4872 cut-off events. For 16276/16304 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 41343 event pairs, 205 based on Foata normal form. 20/4876 useless extension candidates. Maximal degree in co-relation 20063. Up to 1554 conditions per place. [2021-12-06 22:57:16,161 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 549 selfloop transitions, 87 changer transitions 71/801 dead transitions. [2021-12-06 22:57:16,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 801 transitions, 8291 flow [2021-12-06 22:57:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 22:57:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-06 22:57:16,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1174 transitions. [2021-12-06 22:57:16,164 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6922169811320755 [2021-12-06 22:57:16,164 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1174 transitions. [2021-12-06 22:57:16,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1174 transitions. [2021-12-06 22:57:16,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:16,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1174 transitions. [2021-12-06 22:57:16,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 73.375) internal successors, (1174), 16 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:16,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:16,170 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:16,170 INFO L186 Difference]: Start difference. First operand has 226 places, 401 transitions, 3423 flow. Second operand 16 states and 1174 transitions. [2021-12-06 22:57:16,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 801 transitions, 8291 flow [2021-12-06 22:57:16,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 801 transitions, 8230 flow, removed 28 selfloop flow, removed 3 redundant places. [2021-12-06 22:57:16,268 INFO L242 Difference]: Finished difference. Result has 250 places, 466 transitions, 4449 flow [2021-12-06 22:57:16,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4449, PETRI_PLACES=250, PETRI_TRANSITIONS=466} [2021-12-06 22:57:16,269 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 145 predicate places. [2021-12-06 22:57:16,269 INFO L470 AbstractCegarLoop]: Abstraction has has 250 places, 466 transitions, 4449 flow [2021-12-06 22:57:16,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:16,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:16,269 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:16,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 22:57:16,270 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:16,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash 48628487, now seen corresponding path program 2 times [2021-12-06 22:57:16,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:16,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808421549] [2021-12-06 22:57:16,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:16,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:16,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808421549] [2021-12-06 22:57:16,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808421549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:16,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:16,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:57:16,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867946254] [2021-12-06 22:57:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:16,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:16,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:16,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:57:16,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 466 transitions, 4449 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:16,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:16,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:57:16,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:18,204 INFO L129 PetriNetUnfolder]: 1717/4806 cut-off events. [2021-12-06 22:57:18,204 INFO L130 PetriNetUnfolder]: For 21124/21192 co-relation queries the response was YES. [2021-12-06 22:57:18,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21962 conditions, 4806 events. 1717/4806 cut-off events. For 21124/21192 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 40955 event pairs, 261 based on Foata normal form. 57/4821 useless extension candidates. Maximal degree in co-relation 21708. Up to 1546 conditions per place. [2021-12-06 22:57:18,251 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 434 selfloop transitions, 223 changer transitions 46/796 dead transitions. [2021-12-06 22:57:18,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 796 transitions, 8956 flow [2021-12-06 22:57:18,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:57:18,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 22:57:18,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1008 transitions. [2021-12-06 22:57:18,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7314949201741655 [2021-12-06 22:57:18,254 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1008 transitions. [2021-12-06 22:57:18,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1008 transitions. [2021-12-06 22:57:18,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:18,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1008 transitions. [2021-12-06 22:57:18,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.53846153846153) internal successors, (1008), 13 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:18,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:18,259 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:18,259 INFO L186 Difference]: Start difference. First operand has 250 places, 466 transitions, 4449 flow. Second operand 13 states and 1008 transitions. [2021-12-06 22:57:18,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 796 transitions, 8956 flow [2021-12-06 22:57:18,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 796 transitions, 8860 flow, removed 48 selfloop flow, removed 3 redundant places. [2021-12-06 22:57:18,403 INFO L242 Difference]: Finished difference. Result has 263 places, 591 transitions, 6962 flow [2021-12-06 22:57:18,403 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4401, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6962, PETRI_PLACES=263, PETRI_TRANSITIONS=591} [2021-12-06 22:57:18,404 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 158 predicate places. [2021-12-06 22:57:18,404 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 591 transitions, 6962 flow [2021-12-06 22:57:18,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:18,404 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:18,404 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:18,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 22:57:18,405 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:18,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:18,405 INFO L85 PathProgramCache]: Analyzing trace with hash 763224737, now seen corresponding path program 3 times [2021-12-06 22:57:18,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:18,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605362527] [2021-12-06 22:57:18,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:18,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:19,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:19,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605362527] [2021-12-06 22:57:19,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605362527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:19,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:19,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:19,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311870697] [2021-12-06 22:57:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:19,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:19,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:19,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:19,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:19,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 591 transitions, 6962 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:19,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:19,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:19,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:22,115 INFO L129 PetriNetUnfolder]: 2209/5697 cut-off events. [2021-12-06 22:57:22,116 INFO L130 PetriNetUnfolder]: For 31843/31868 co-relation queries the response was YES. [2021-12-06 22:57:22,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28666 conditions, 5697 events. 2209/5697 cut-off events. For 31843/31868 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 47867 event pairs, 272 based on Foata normal form. 8/5676 useless extension candidates. Maximal degree in co-relation 28406. Up to 1229 conditions per place. [2021-12-06 22:57:22,165 INFO L132 encePairwiseOnDemand]: 76/106 looper letters, 530 selfloop transitions, 335 changer transitions 78/1024 dead transitions. [2021-12-06 22:57:22,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 1024 transitions, 13027 flow [2021-12-06 22:57:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 22:57:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-12-06 22:57:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1918 transitions. [2021-12-06 22:57:22,167 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.623942745608328 [2021-12-06 22:57:22,167 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1918 transitions. [2021-12-06 22:57:22,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1918 transitions. [2021-12-06 22:57:22,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:22,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1918 transitions. [2021-12-06 22:57:22,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 66.13793103448276) internal successors, (1918), 29 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:22,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 106.0) internal successors, (3180), 30 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:22,174 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 106.0) internal successors, (3180), 30 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:22,174 INFO L186 Difference]: Start difference. First operand has 263 places, 591 transitions, 6962 flow. Second operand 29 states and 1918 transitions. [2021-12-06 22:57:22,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 1024 transitions, 13027 flow [2021-12-06 22:57:22,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 1024 transitions, 12949 flow, removed 33 selfloop flow, removed 1 redundant places. [2021-12-06 22:57:22,363 INFO L242 Difference]: Finished difference. Result has 301 places, 686 transitions, 9383 flow [2021-12-06 22:57:22,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6922, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=9383, PETRI_PLACES=301, PETRI_TRANSITIONS=686} [2021-12-06 22:57:22,365 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 196 predicate places. [2021-12-06 22:57:22,365 INFO L470 AbstractCegarLoop]: Abstraction has has 301 places, 686 transitions, 9383 flow [2021-12-06 22:57:22,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:22,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:22,366 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:22,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 22:57:22,366 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:22,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:22,366 INFO L85 PathProgramCache]: Analyzing trace with hash 107185895, now seen corresponding path program 4 times [2021-12-06 22:57:22,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:22,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702508177] [2021-12-06 22:57:22,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:22,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:22,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:22,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702508177] [2021-12-06 22:57:22,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702508177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:22,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:22,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:22,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443866237] [2021-12-06 22:57:22,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:22,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:22,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:22,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:22,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:22,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:22,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 686 transitions, 9383 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:22,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:22,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:22,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:26,371 INFO L129 PetriNetUnfolder]: 3133/7897 cut-off events. [2021-12-06 22:57:26,371 INFO L130 PetriNetUnfolder]: For 62078/62132 co-relation queries the response was YES. [2021-12-06 22:57:26,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45904 conditions, 7897 events. 3133/7897 cut-off events. For 62078/62132 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 70776 event pairs, 415 based on Foata normal form. 17/7865 useless extension candidates. Maximal degree in co-relation 45627. Up to 2240 conditions per place. [2021-12-06 22:57:26,451 INFO L132 encePairwiseOnDemand]: 79/106 looper letters, 704 selfloop transitions, 495 changer transitions 25/1305 dead transitions. [2021-12-06 22:57:26,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1305 transitions, 20499 flow [2021-12-06 22:57:26,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 22:57:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-12-06 22:57:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1708 transitions. [2021-12-06 22:57:26,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6197387518142236 [2021-12-06 22:57:26,453 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1708 transitions. [2021-12-06 22:57:26,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1708 transitions. [2021-12-06 22:57:26,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:26,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1708 transitions. [2021-12-06 22:57:26,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.6923076923077) internal successors, (1708), 26 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:26,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:26,459 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:26,459 INFO L186 Difference]: Start difference. First operand has 301 places, 686 transitions, 9383 flow. Second operand 26 states and 1708 transitions. [2021-12-06 22:57:26,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 1305 transitions, 20499 flow [2021-12-06 22:57:27,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1305 transitions, 20142 flow, removed 139 selfloop flow, removed 7 redundant places. [2021-12-06 22:57:27,047 INFO L242 Difference]: Finished difference. Result has 329 places, 951 transitions, 15927 flow [2021-12-06 22:57:27,048 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9208, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=301, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=15927, PETRI_PLACES=329, PETRI_TRANSITIONS=951} [2021-12-06 22:57:27,048 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 224 predicate places. [2021-12-06 22:57:27,048 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 951 transitions, 15927 flow [2021-12-06 22:57:27,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:27,049 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:27,049 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:27,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 22:57:27,049 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:27,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1386324479, now seen corresponding path program 5 times [2021-12-06 22:57:27,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:27,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789400136] [2021-12-06 22:57:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:27,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:27,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:27,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789400136] [2021-12-06 22:57:27,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789400136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:27,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:27,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:27,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037921272] [2021-12-06 22:57:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:27,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:27,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:27,654 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:27,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 951 transitions, 15927 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:27,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:27,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:27,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:32,082 INFO L129 PetriNetUnfolder]: 3134/7895 cut-off events. [2021-12-06 22:57:32,082 INFO L130 PetriNetUnfolder]: For 72642/72698 co-relation queries the response was YES. [2021-12-06 22:57:32,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48096 conditions, 7895 events. 3134/7895 cut-off events. For 72642/72698 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 70858 event pairs, 405 based on Foata normal form. 19/7869 useless extension candidates. Maximal degree in co-relation 47809. Up to 2240 conditions per place. [2021-12-06 22:57:32,167 INFO L132 encePairwiseOnDemand]: 79/106 looper letters, 691 selfloop transitions, 517 changer transitions 27/1316 dead transitions. [2021-12-06 22:57:32,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1316 transitions, 22245 flow [2021-12-06 22:57:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 22:57:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-12-06 22:57:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1724 transitions. [2021-12-06 22:57:32,170 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.625544267053701 [2021-12-06 22:57:32,170 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1724 transitions. [2021-12-06 22:57:32,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1724 transitions. [2021-12-06 22:57:32,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:32,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1724 transitions. [2021-12-06 22:57:32,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 66.3076923076923) internal successors, (1724), 26 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:32,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:32,175 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:32,175 INFO L186 Difference]: Start difference. First operand has 329 places, 951 transitions, 15927 flow. Second operand 26 states and 1724 transitions. [2021-12-06 22:57:32,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 1316 transitions, 22245 flow [2021-12-06 22:57:32,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1316 transitions, 22060 flow, removed 78 selfloop flow, removed 7 redundant places. [2021-12-06 22:57:32,913 INFO L242 Difference]: Finished difference. Result has 353 places, 978 transitions, 17500 flow [2021-12-06 22:57:32,914 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15748, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=17500, PETRI_PLACES=353, PETRI_TRANSITIONS=978} [2021-12-06 22:57:32,914 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 248 predicate places. [2021-12-06 22:57:32,914 INFO L470 AbstractCegarLoop]: Abstraction has has 353 places, 978 transitions, 17500 flow [2021-12-06 22:57:32,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:32,915 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:32,915 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:32,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 22:57:32,915 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:32,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1603035775, now seen corresponding path program 6 times [2021-12-06 22:57:32,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:32,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477378329] [2021-12-06 22:57:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:32,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:33,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:33,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477378329] [2021-12-06 22:57:33,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477378329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:33,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:33,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:33,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312578563] [2021-12-06 22:57:33,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:33,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:33,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:33,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:33,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:33,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:33,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 978 transitions, 17500 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:33,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:33,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:33,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:37,662 INFO L129 PetriNetUnfolder]: 3135/7908 cut-off events. [2021-12-06 22:57:37,662 INFO L130 PetriNetUnfolder]: For 83161/83221 co-relation queries the response was YES. [2021-12-06 22:57:37,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50209 conditions, 7908 events. 3135/7908 cut-off events. For 83161/83221 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 70907 event pairs, 475 based on Foata normal form. 23/7880 useless extension candidates. Maximal degree in co-relation 49915. Up to 2240 conditions per place. [2021-12-06 22:57:37,747 INFO L132 encePairwiseOnDemand]: 79/106 looper letters, 721 selfloop transitions, 490 changer transitions 23/1315 dead transitions. [2021-12-06 22:57:37,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1315 transitions, 23500 flow [2021-12-06 22:57:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 22:57:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-12-06 22:57:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1686 transitions. [2021-12-06 22:57:37,750 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.611756168359942 [2021-12-06 22:57:37,750 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1686 transitions. [2021-12-06 22:57:37,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1686 transitions. [2021-12-06 22:57:37,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:37,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1686 transitions. [2021-12-06 22:57:37,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 64.84615384615384) internal successors, (1686), 26 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:37,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:37,754 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:37,754 INFO L186 Difference]: Start difference. First operand has 353 places, 978 transitions, 17500 flow. Second operand 26 states and 1686 transitions. [2021-12-06 22:57:37,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1315 transitions, 23500 flow [2021-12-06 22:57:38,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 1315 transitions, 22837 flow, removed 31 selfloop flow, removed 14 redundant places. [2021-12-06 22:57:38,496 INFO L242 Difference]: Finished difference. Result has 372 places, 993 transitions, 18501 flow [2021-12-06 22:57:38,497 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=16845, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=18501, PETRI_PLACES=372, PETRI_TRANSITIONS=993} [2021-12-06 22:57:38,497 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 267 predicate places. [2021-12-06 22:57:38,497 INFO L470 AbstractCegarLoop]: Abstraction has has 372 places, 993 transitions, 18501 flow [2021-12-06 22:57:38,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:38,498 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:38,498 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:38,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 22:57:38,498 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -501421375, now seen corresponding path program 7 times [2021-12-06 22:57:38,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:38,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187211096] [2021-12-06 22:57:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:38,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:38,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:38,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187211096] [2021-12-06 22:57:38,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187211096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:38,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:38,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:57:38,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070569890] [2021-12-06 22:57:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:38,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:57:38,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:57:38,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:57:38,947 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:57:38,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 993 transitions, 18501 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:38,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:38,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:57:38,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:43,440 INFO L129 PetriNetUnfolder]: 3160/8002 cut-off events. [2021-12-06 22:57:43,440 INFO L130 PetriNetUnfolder]: For 92158/92200 co-relation queries the response was YES. [2021-12-06 22:57:43,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52190 conditions, 8002 events. 3160/8002 cut-off events. For 92158/92200 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 72125 event pairs, 351 based on Foata normal form. 18/7970 useless extension candidates. Maximal degree in co-relation 51887. Up to 2615 conditions per place. [2021-12-06 22:57:43,532 INFO L132 encePairwiseOnDemand]: 77/106 looper letters, 538 selfloop transitions, 545 changer transitions 62/1226 dead transitions. [2021-12-06 22:57:43,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1226 transitions, 23332 flow [2021-12-06 22:57:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 22:57:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-12-06 22:57:43,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1647 transitions. [2021-12-06 22:57:43,534 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5976052249637155 [2021-12-06 22:57:43,535 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1647 transitions. [2021-12-06 22:57:43,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1647 transitions. [2021-12-06 22:57:43,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:43,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1647 transitions. [2021-12-06 22:57:43,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 63.34615384615385) internal successors, (1647), 26 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:43,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:43,539 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 106.0) internal successors, (2862), 27 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:43,539 INFO L186 Difference]: Start difference. First operand has 372 places, 993 transitions, 18501 flow. Second operand 26 states and 1647 transitions. [2021-12-06 22:57:43,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1226 transitions, 23332 flow [2021-12-06 22:57:44,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 1226 transitions, 23045 flow, removed 96 selfloop flow, removed 10 redundant places. [2021-12-06 22:57:44,403 INFO L242 Difference]: Finished difference. Result has 395 places, 1025 transitions, 20111 flow [2021-12-06 22:57:44,404 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18221, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=20111, PETRI_PLACES=395, PETRI_TRANSITIONS=1025} [2021-12-06 22:57:44,405 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 290 predicate places. [2021-12-06 22:57:44,405 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 1025 transitions, 20111 flow [2021-12-06 22:57:44,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:44,405 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:44,405 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:44,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 22:57:44,405 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:44,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:44,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1180980767, now seen corresponding path program 8 times [2021-12-06 22:57:44,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:44,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949155047] [2021-12-06 22:57:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:44,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:44,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:44,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949155047] [2021-12-06 22:57:44,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949155047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:44,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:44,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:57:44,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027080944] [2021-12-06 22:57:44,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:44,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:44,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:44,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:44,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:44,731 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:57:44,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 1025 transitions, 20111 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:44,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:44,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:57:44,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:48,250 INFO L129 PetriNetUnfolder]: 2682/7298 cut-off events. [2021-12-06 22:57:48,250 INFO L130 PetriNetUnfolder]: For 96298/96349 co-relation queries the response was YES. [2021-12-06 22:57:48,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50294 conditions, 7298 events. 2682/7298 cut-off events. For 96298/96349 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 67333 event pairs, 394 based on Foata normal form. 14/7259 useless extension candidates. Maximal degree in co-relation 49983. Up to 2725 conditions per place. [2021-12-06 22:57:48,346 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 510 selfloop transitions, 573 changer transitions 21/1210 dead transitions. [2021-12-06 22:57:48,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1210 transitions, 24305 flow [2021-12-06 22:57:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:57:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:57:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 852 transitions. [2021-12-06 22:57:48,347 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7307032590051458 [2021-12-06 22:57:48,347 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 852 transitions. [2021-12-06 22:57:48,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 852 transitions. [2021-12-06 22:57:48,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:48,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 852 transitions. [2021-12-06 22:57:48,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:48,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:48,350 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:48,350 INFO L186 Difference]: Start difference. First operand has 395 places, 1025 transitions, 20111 flow. Second operand 11 states and 852 transitions. [2021-12-06 22:57:48,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1210 transitions, 24305 flow [2021-12-06 22:57:49,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 1210 transitions, 23784 flow, removed 146 selfloop flow, removed 9 redundant places. [2021-12-06 22:57:49,232 INFO L242 Difference]: Finished difference. Result has 399 places, 1044 transitions, 21559 flow [2021-12-06 22:57:49,233 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19621, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=555, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21559, PETRI_PLACES=399, PETRI_TRANSITIONS=1044} [2021-12-06 22:57:49,233 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 294 predicate places. [2021-12-06 22:57:49,233 INFO L470 AbstractCegarLoop]: Abstraction has has 399 places, 1044 transitions, 21559 flow [2021-12-06 22:57:49,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:49,234 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:49,234 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:49,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 22:57:49,234 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:49,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:49,234 INFO L85 PathProgramCache]: Analyzing trace with hash -435883879, now seen corresponding path program 9 times [2021-12-06 22:57:49,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:49,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536952671] [2021-12-06 22:57:49,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:49,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:49,528 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:49,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:49,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536952671] [2021-12-06 22:57:49,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536952671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:49,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:49,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:57:49,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848638344] [2021-12-06 22:57:49,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:49,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:49,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:49,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:49,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:49,530 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:57:49,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 1044 transitions, 21559 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:49,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:49,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:57:49,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:52,883 INFO L129 PetriNetUnfolder]: 2706/7366 cut-off events. [2021-12-06 22:57:52,883 INFO L130 PetriNetUnfolder]: For 106316/106366 co-relation queries the response was YES. [2021-12-06 22:57:52,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52116 conditions, 7366 events. 2706/7366 cut-off events. For 106316/106366 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 68153 event pairs, 508 based on Foata normal form. 13/7312 useless extension candidates. Maximal degree in co-relation 51804. Up to 3851 conditions per place. [2021-12-06 22:57:52,993 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 526 selfloop transitions, 502 changer transitions 17/1151 dead transitions. [2021-12-06 22:57:52,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1151 transitions, 25137 flow [2021-12-06 22:57:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:57:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 22:57:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 938 transitions. [2021-12-06 22:57:52,995 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6806966618287373 [2021-12-06 22:57:52,996 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 938 transitions. [2021-12-06 22:57:52,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 938 transitions. [2021-12-06 22:57:52,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:52,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 938 transitions. [2021-12-06 22:57:52,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.15384615384616) internal successors, (938), 13 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:52,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:52,999 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:52,999 INFO L186 Difference]: Start difference. First operand has 399 places, 1044 transitions, 21559 flow. Second operand 13 states and 938 transitions. [2021-12-06 22:57:52,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1151 transitions, 25137 flow [2021-12-06 22:57:54,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1151 transitions, 23860 flow, removed 49 selfloop flow, removed 7 redundant places. [2021-12-06 22:57:54,066 INFO L242 Difference]: Finished difference. Result has 409 places, 1077 transitions, 22393 flow [2021-12-06 22:57:54,067 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=20319, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=474, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22393, PETRI_PLACES=409, PETRI_TRANSITIONS=1077} [2021-12-06 22:57:54,067 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 304 predicate places. [2021-12-06 22:57:54,067 INFO L470 AbstractCegarLoop]: Abstraction has has 409 places, 1077 transitions, 22393 flow [2021-12-06 22:57:54,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:54,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:54,068 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:54,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 22:57:54,068 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:54,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1289860527, now seen corresponding path program 10 times [2021-12-06 22:57:54,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:54,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843600347] [2021-12-06 22:57:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:54,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:54,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:54,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843600347] [2021-12-06 22:57:54,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843600347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:54,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:54,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:57:54,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60386869] [2021-12-06 22:57:54,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:54,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:54,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:54,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:54,361 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:57:54,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1077 transitions, 22393 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:54,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:54,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:57:54,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:57:57,741 INFO L129 PetriNetUnfolder]: 2704/7358 cut-off events. [2021-12-06 22:57:57,742 INFO L130 PetriNetUnfolder]: For 109338/109388 co-relation queries the response was YES. [2021-12-06 22:57:57,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52756 conditions, 7358 events. 2704/7358 cut-off events. For 109338/109388 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 68017 event pairs, 455 based on Foata normal form. 13/7309 useless extension candidates. Maximal degree in co-relation 52440. Up to 2767 conditions per place. [2021-12-06 22:57:57,841 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 553 selfloop transitions, 562 changer transitions 20/1241 dead transitions. [2021-12-06 22:57:57,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1241 transitions, 26253 flow [2021-12-06 22:57:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:57:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:57:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 842 transitions. [2021-12-06 22:57:57,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7221269296740995 [2021-12-06 22:57:57,843 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 842 transitions. [2021-12-06 22:57:57,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 842 transitions. [2021-12-06 22:57:57,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:57:57,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 842 transitions. [2021-12-06 22:57:57,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.54545454545455) internal successors, (842), 11 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:57,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:57,845 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:57,845 INFO L186 Difference]: Start difference. First operand has 409 places, 1077 transitions, 22393 flow. Second operand 11 states and 842 transitions. [2021-12-06 22:57:57,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1241 transitions, 26253 flow [2021-12-06 22:57:58,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1241 transitions, 25838 flow, removed 93 selfloop flow, removed 3 redundant places. [2021-12-06 22:57:58,966 INFO L242 Difference]: Finished difference. Result has 420 places, 1084 transitions, 23708 flow [2021-12-06 22:57:58,967 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=21981, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=555, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=23708, PETRI_PLACES=420, PETRI_TRANSITIONS=1084} [2021-12-06 22:57:58,968 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 315 predicate places. [2021-12-06 22:57:58,968 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 1084 transitions, 23708 flow [2021-12-06 22:57:58,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:58,968 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:57:58,968 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:58,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 22:57:58,968 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:57:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:58,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1641501999, now seen corresponding path program 11 times [2021-12-06 22:57:58,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:58,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352039676] [2021-12-06 22:57:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:58,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:57:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:57:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:57:59,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:57:59,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352039676] [2021-12-06 22:57:59,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352039676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:57:59,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:57:59,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:57:59,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367705576] [2021-12-06 22:57:59,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:57:59,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:57:59,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:57:59,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:57:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:57:59,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:57:59,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1084 transitions, 23708 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:57:59,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:57:59,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:57:59,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:03,043 INFO L129 PetriNetUnfolder]: 2704/7371 cut-off events. [2021-12-06 22:58:03,043 INFO L130 PetriNetUnfolder]: For 119695/119745 co-relation queries the response was YES. [2021-12-06 22:58:03,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54265 conditions, 7371 events. 2704/7371 cut-off events. For 119695/119745 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 68264 event pairs, 371 based on Foata normal form. 13/7332 useless extension candidates. Maximal degree in co-relation 53947. Up to 2769 conditions per place. [2021-12-06 22:58:03,141 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 506 selfloop transitions, 614 changer transitions 22/1248 dead transitions. [2021-12-06 22:58:03,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1248 transitions, 27488 flow [2021-12-06 22:58:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:58:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:58:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 859 transitions. [2021-12-06 22:58:03,143 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7367066895368782 [2021-12-06 22:58:03,143 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 859 transitions. [2021-12-06 22:58:03,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 859 transitions. [2021-12-06 22:58:03,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:03,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 859 transitions. [2021-12-06 22:58:03,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.0909090909091) internal successors, (859), 11 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:03,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:03,145 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:03,145 INFO L186 Difference]: Start difference. First operand has 420 places, 1084 transitions, 23708 flow. Second operand 11 states and 859 transitions. [2021-12-06 22:58:03,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1248 transitions, 27488 flow [2021-12-06 22:58:04,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1248 transitions, 26778 flow, removed 60 selfloop flow, removed 6 redundant places. [2021-12-06 22:58:04,201 INFO L242 Difference]: Finished difference. Result has 427 places, 1089 transitions, 24631 flow [2021-12-06 22:58:04,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=23013, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=609, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=24631, PETRI_PLACES=427, PETRI_TRANSITIONS=1089} [2021-12-06 22:58:04,203 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 322 predicate places. [2021-12-06 22:58:04,203 INFO L470 AbstractCegarLoop]: Abstraction has has 427 places, 1089 transitions, 24631 flow [2021-12-06 22:58:04,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:04,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:04,203 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:04,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 22:58:04,203 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:04,204 INFO L85 PathProgramCache]: Analyzing trace with hash 723428963, now seen corresponding path program 12 times [2021-12-06 22:58:04,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:04,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049651884] [2021-12-06 22:58:04,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:04,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:04,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:04,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049651884] [2021-12-06 22:58:04,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049651884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:04,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:04,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 22:58:04,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963645344] [2021-12-06 22:58:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:04,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:58:04,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:58:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:58:04,551 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 106 [2021-12-06 22:58:04,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 1089 transitions, 24631 flow. Second operand has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:04,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:04,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 106 [2021-12-06 22:58:04,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:09,031 INFO L129 PetriNetUnfolder]: 3207/8129 cut-off events. [2021-12-06 22:58:09,031 INFO L130 PetriNetUnfolder]: For 135454/135496 co-relation queries the response was YES. [2021-12-06 22:58:09,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59977 conditions, 8129 events. 3207/8129 cut-off events. For 135454/135496 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 73609 event pairs, 334 based on Foata normal form. 18/8116 useless extension candidates. Maximal degree in co-relation 59657. Up to 2674 conditions per place. [2021-12-06 22:58:09,160 INFO L132 encePairwiseOnDemand]: 77/106 looper letters, 561 selfloop transitions, 594 changer transitions 60/1296 dead transitions. [2021-12-06 22:58:09,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 1296 transitions, 29136 flow [2021-12-06 22:58:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 22:58:09,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-12-06 22:58:09,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1435 transitions. [2021-12-06 22:58:09,163 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6153516295025729 [2021-12-06 22:58:09,163 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1435 transitions. [2021-12-06 22:58:09,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1435 transitions. [2021-12-06 22:58:09,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:09,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1435 transitions. [2021-12-06 22:58:09,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 65.22727272727273) internal successors, (1435), 22 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:09,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:09,168 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 106.0) internal successors, (2438), 23 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:09,168 INFO L186 Difference]: Start difference. First operand has 427 places, 1089 transitions, 24631 flow. Second operand 22 states and 1435 transitions. [2021-12-06 22:58:09,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 1296 transitions, 29136 flow [2021-12-06 22:58:10,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 1296 transitions, 28221 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-12-06 22:58:10,335 INFO L242 Difference]: Finished difference. Result has 443 places, 1095 transitions, 25215 flow [2021-12-06 22:58:10,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=23730, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=588, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=25215, PETRI_PLACES=443, PETRI_TRANSITIONS=1095} [2021-12-06 22:58:10,336 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 338 predicate places. [2021-12-06 22:58:10,336 INFO L470 AbstractCegarLoop]: Abstraction has has 443 places, 1095 transitions, 25215 flow [2021-12-06 22:58:10,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 54.526315789473685) internal successors, (1036), 19 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:10,336 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:10,337 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:10,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 22:58:10,337 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1929394253, now seen corresponding path program 13 times [2021-12-06 22:58:10,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:10,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55391817] [2021-12-06 22:58:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:10,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:10,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:10,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55391817] [2021-12-06 22:58:10,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55391817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:10,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:10,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:10,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237683842] [2021-12-06 22:58:10,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:10,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:10,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:10,687 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:58:10,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1095 transitions, 25215 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:10,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:10,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:58:10,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:14,255 INFO L129 PetriNetUnfolder]: 2706/7357 cut-off events. [2021-12-06 22:58:14,255 INFO L130 PetriNetUnfolder]: For 126668/126718 co-relation queries the response was YES. [2021-12-06 22:58:14,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56107 conditions, 7357 events. 2706/7357 cut-off events. For 126668/126718 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 68096 event pairs, 474 based on Foata normal form. 13/7296 useless extension candidates. Maximal degree in co-relation 55784. Up to 3854 conditions per place. [2021-12-06 22:58:14,418 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 528 selfloop transitions, 526 changer transitions 17/1177 dead transitions. [2021-12-06 22:58:14,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 1177 transitions, 28300 flow [2021-12-06 22:58:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 22:58:14,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 22:58:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 999 transitions. [2021-12-06 22:58:14,420 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6731805929919138 [2021-12-06 22:58:14,420 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 999 transitions. [2021-12-06 22:58:14,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 999 transitions. [2021-12-06 22:58:14,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:14,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 999 transitions. [2021-12-06 22:58:14,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.35714285714286) internal successors, (999), 14 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:14,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:14,422 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:14,423 INFO L186 Difference]: Start difference. First operand has 443 places, 1095 transitions, 25215 flow. Second operand 14 states and 999 transitions. [2021-12-06 22:58:14,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 1177 transitions, 28300 flow [2021-12-06 22:58:15,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 1177 transitions, 27662 flow, removed 29 selfloop flow, removed 13 redundant places. [2021-12-06 22:58:15,473 INFO L242 Difference]: Finished difference. Result has 448 places, 1111 transitions, 26031 flow [2021-12-06 22:58:15,474 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24589, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1095, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26031, PETRI_PLACES=448, PETRI_TRANSITIONS=1111} [2021-12-06 22:58:15,474 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 343 predicate places. [2021-12-06 22:58:15,474 INFO L470 AbstractCegarLoop]: Abstraction has has 448 places, 1111 transitions, 26031 flow [2021-12-06 22:58:15,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:15,474 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:15,474 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:15,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 22:58:15,475 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 215586857, now seen corresponding path program 14 times [2021-12-06 22:58:15,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:15,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474309279] [2021-12-06 22:58:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:15,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:15,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:15,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474309279] [2021-12-06 22:58:15,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474309279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:15,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:15,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:15,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052938981] [2021-12-06 22:58:15,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:15,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:15,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:15,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:15,747 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:58:15,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 1111 transitions, 26031 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:15,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:15,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:58:15,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:19,361 INFO L129 PetriNetUnfolder]: 2707/7378 cut-off events. [2021-12-06 22:58:19,361 INFO L130 PetriNetUnfolder]: For 135628/135678 co-relation queries the response was YES. [2021-12-06 22:58:19,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56798 conditions, 7378 events. 2707/7378 cut-off events. For 135628/135678 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 68464 event pairs, 446 based on Foata normal form. 13/7353 useless extension candidates. Maximal degree in co-relation 56472. Up to 3885 conditions per place. [2021-12-06 22:58:19,467 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 505 selfloop transitions, 569 changer transitions 17/1197 dead transitions. [2021-12-06 22:58:19,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 1197 transitions, 29161 flow [2021-12-06 22:58:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:58:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:58:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 824 transitions. [2021-12-06 22:58:19,469 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7066895368782161 [2021-12-06 22:58:19,469 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 824 transitions. [2021-12-06 22:58:19,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 824 transitions. [2021-12-06 22:58:19,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:19,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 824 transitions. [2021-12-06 22:58:19,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.9090909090909) internal successors, (824), 11 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:19,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:19,471 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:19,471 INFO L186 Difference]: Start difference. First operand has 448 places, 1111 transitions, 26031 flow. Second operand 11 states and 824 transitions. [2021-12-06 22:58:19,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 1197 transitions, 29161 flow [2021-12-06 22:58:20,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 1197 transitions, 28022 flow, removed 67 selfloop flow, removed 7 redundant places. [2021-12-06 22:58:20,652 INFO L242 Difference]: Finished difference. Result has 456 places, 1122 transitions, 26449 flow [2021-12-06 22:58:20,653 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24907, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=559, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26449, PETRI_PLACES=456, PETRI_TRANSITIONS=1122} [2021-12-06 22:58:20,654 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 351 predicate places. [2021-12-06 22:58:20,654 INFO L470 AbstractCegarLoop]: Abstraction has has 456 places, 1122 transitions, 26449 flow [2021-12-06 22:58:20,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:20,654 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:20,654 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:20,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 22:58:20,654 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:20,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:20,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2013931571, now seen corresponding path program 15 times [2021-12-06 22:58:20,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:20,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314433127] [2021-12-06 22:58:20,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:20,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:20,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314433127] [2021-12-06 22:58:20,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314433127] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:20,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:20,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009673952] [2021-12-06 22:58:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:20,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:20,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:20,890 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:58:20,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1122 transitions, 26449 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:20,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:20,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:58:20,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:24,413 INFO L129 PetriNetUnfolder]: 2704/7361 cut-off events. [2021-12-06 22:58:24,413 INFO L130 PetriNetUnfolder]: For 138778/138828 co-relation queries the response was YES. [2021-12-06 22:58:24,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57494 conditions, 7361 events. 2704/7361 cut-off events. For 138778/138828 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 68199 event pairs, 473 based on Foata normal form. 13/7299 useless extension candidates. Maximal degree in co-relation 57164. Up to 3854 conditions per place. [2021-12-06 22:58:24,527 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 544 selfloop transitions, 522 changer transitions 17/1189 dead transitions. [2021-12-06 22:58:24,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1189 transitions, 29266 flow [2021-12-06 22:58:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:58:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 22:58:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 740 transitions. [2021-12-06 22:58:24,529 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2021-12-06 22:58:24,529 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 740 transitions. [2021-12-06 22:58:24,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 740 transitions. [2021-12-06 22:58:24,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:24,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 740 transitions. [2021-12-06 22:58:24,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:24,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:24,531 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:24,531 INFO L186 Difference]: Start difference. First operand has 456 places, 1122 transitions, 26449 flow. Second operand 10 states and 740 transitions. [2021-12-06 22:58:24,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1189 transitions, 29266 flow [2021-12-06 22:58:25,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1189 transitions, 28857 flow, removed 49 selfloop flow, removed 3 redundant places. [2021-12-06 22:58:25,789 INFO L242 Difference]: Finished difference. Result has 466 places, 1128 transitions, 27257 flow [2021-12-06 22:58:25,790 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=26046, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=516, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27257, PETRI_PLACES=466, PETRI_TRANSITIONS=1128} [2021-12-06 22:58:25,790 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 361 predicate places. [2021-12-06 22:58:25,790 INFO L470 AbstractCegarLoop]: Abstraction has has 466 places, 1128 transitions, 27257 flow [2021-12-06 22:58:25,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:25,791 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:25,791 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:25,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 22:58:25,791 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash -507499557, now seen corresponding path program 16 times [2021-12-06 22:58:25,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:25,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699380347] [2021-12-06 22:58:25,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:25,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:26,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:26,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699380347] [2021-12-06 22:58:26,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699380347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:26,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:26,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:26,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841802179] [2021-12-06 22:58:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:26,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:26,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:26,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:26,098 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:58:26,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 1128 transitions, 27257 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:26,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:26,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:58:26,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:29,748 INFO L129 PetriNetUnfolder]: 2711/7378 cut-off events. [2021-12-06 22:58:29,749 INFO L130 PetriNetUnfolder]: For 152084/152134 co-relation queries the response was YES. [2021-12-06 22:58:29,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58828 conditions, 7378 events. 2711/7378 cut-off events. For 152084/152134 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 68418 event pairs, 431 based on Foata normal form. 13/7321 useless extension candidates. Maximal degree in co-relation 58494. Up to 3879 conditions per place. [2021-12-06 22:58:29,860 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 533 selfloop transitions, 551 changer transitions 18/1208 dead transitions. [2021-12-06 22:58:29,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1208 transitions, 30354 flow [2021-12-06 22:58:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:58:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 22:58:29,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2021-12-06 22:58:29,862 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6857764876632801 [2021-12-06 22:58:29,862 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2021-12-06 22:58:29,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2021-12-06 22:58:29,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:29,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2021-12-06 22:58:29,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:29,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:29,865 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:29,865 INFO L186 Difference]: Start difference. First operand has 466 places, 1128 transitions, 27257 flow. Second operand 13 states and 945 transitions. [2021-12-06 22:58:29,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1208 transitions, 30354 flow [2021-12-06 22:58:31,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1208 transitions, 29611 flow, removed 47 selfloop flow, removed 4 redundant places. [2021-12-06 22:58:31,143 INFO L242 Difference]: Finished difference. Result has 479 places, 1140 transitions, 27975 flow [2021-12-06 22:58:31,144 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=26548, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=539, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27975, PETRI_PLACES=479, PETRI_TRANSITIONS=1140} [2021-12-06 22:58:31,145 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 374 predicate places. [2021-12-06 22:58:31,145 INFO L470 AbstractCegarLoop]: Abstraction has has 479 places, 1140 transitions, 27975 flow [2021-12-06 22:58:31,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:31,145 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:31,145 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:31,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 22:58:31,145 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:31,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash 812752821, now seen corresponding path program 17 times [2021-12-06 22:58:31,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:31,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650817471] [2021-12-06 22:58:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:31,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:31,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:31,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650817471] [2021-12-06 22:58:31,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650817471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:31,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:31,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:31,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274264233] [2021-12-06 22:58:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:31,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:31,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:31,406 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 22:58:31,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1140 transitions, 27975 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:31,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:31,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 22:58:31,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:35,120 INFO L129 PetriNetUnfolder]: 2709/7375 cut-off events. [2021-12-06 22:58:35,120 INFO L130 PetriNetUnfolder]: For 158212/158262 co-relation queries the response was YES. [2021-12-06 22:58:35,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59238 conditions, 7375 events. 2709/7375 cut-off events. For 158212/158262 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 68366 event pairs, 471 based on Foata normal form. 13/7317 useless extension candidates. Maximal degree in co-relation 58948. Up to 3877 conditions per place. [2021-12-06 22:58:35,231 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 534 selfloop transitions, 549 changer transitions 18/1207 dead transitions. [2021-12-06 22:58:35,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1207 transitions, 30763 flow [2021-12-06 22:58:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:58:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 22:58:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 749 transitions. [2021-12-06 22:58:35,233 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7066037735849057 [2021-12-06 22:58:35,233 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 749 transitions. [2021-12-06 22:58:35,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 749 transitions. [2021-12-06 22:58:35,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:35,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 749 transitions. [2021-12-06 22:58:35,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.9) internal successors, (749), 10 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:35,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:35,235 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:35,235 INFO L186 Difference]: Start difference. First operand has 479 places, 1140 transitions, 27975 flow. Second operand 10 states and 749 transitions. [2021-12-06 22:58:35,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1207 transitions, 30763 flow [2021-12-06 22:58:36,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 1207 transitions, 29673 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-12-06 22:58:36,609 INFO L242 Difference]: Finished difference. Result has 485 places, 1143 transitions, 28100 flow [2021-12-06 22:58:36,610 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=26888, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=546, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28100, PETRI_PLACES=485, PETRI_TRANSITIONS=1143} [2021-12-06 22:58:36,610 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 380 predicate places. [2021-12-06 22:58:36,611 INFO L470 AbstractCegarLoop]: Abstraction has has 485 places, 1143 transitions, 28100 flow [2021-12-06 22:58:36,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:36,611 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:36,611 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:36,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 22:58:36,611 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash -771865669, now seen corresponding path program 1 times [2021-12-06 22:58:36,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:36,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164915935] [2021-12-06 22:58:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:36,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:37,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:37,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164915935] [2021-12-06 22:58:37,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164915935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:37,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:37,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:58:37,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486877305] [2021-12-06 22:58:37,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:37,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:58:37,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:37,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:58:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:58:37,646 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:58:37,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1143 transitions, 28100 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:37,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:37,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:58:37,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:41,885 INFO L129 PetriNetUnfolder]: 2648/7371 cut-off events. [2021-12-06 22:58:41,886 INFO L130 PetriNetUnfolder]: For 168444/168487 co-relation queries the response was YES. [2021-12-06 22:58:41,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59887 conditions, 7371 events. 2648/7371 cut-off events. For 168444/168487 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 69251 event pairs, 373 based on Foata normal form. 16/7329 useless extension candidates. Maximal degree in co-relation 59586. Up to 3314 conditions per place. [2021-12-06 22:58:42,019 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1132 selfloop transitions, 187 changer transitions 25/1469 dead transitions. [2021-12-06 22:58:42,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1469 transitions, 34711 flow [2021-12-06 22:58:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 22:58:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 22:58:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1114 transitions. [2021-12-06 22:58:42,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7506738544474394 [2021-12-06 22:58:42,021 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1114 transitions. [2021-12-06 22:58:42,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1114 transitions. [2021-12-06 22:58:42,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:42,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1114 transitions. [2021-12-06 22:58:42,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.57142857142857) internal successors, (1114), 14 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:42,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:42,023 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:42,023 INFO L186 Difference]: Start difference. First operand has 485 places, 1143 transitions, 28100 flow. Second operand 14 states and 1114 transitions. [2021-12-06 22:58:42,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1469 transitions, 34711 flow [2021-12-06 22:58:43,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1469 transitions, 33556 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-12-06 22:58:43,333 INFO L242 Difference]: Finished difference. Result has 501 places, 1223 transitions, 29103 flow [2021-12-06 22:58:43,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=27031, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=996, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29103, PETRI_PLACES=501, PETRI_TRANSITIONS=1223} [2021-12-06 22:58:43,335 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 396 predicate places. [2021-12-06 22:58:43,335 INFO L470 AbstractCegarLoop]: Abstraction has has 501 places, 1223 transitions, 29103 flow [2021-12-06 22:58:43,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:43,335 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:43,335 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:43,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 22:58:43,335 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:43,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1657790239, now seen corresponding path program 2 times [2021-12-06 22:58:43,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:43,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107558812] [2021-12-06 22:58:43,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:43,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:43,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:43,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107558812] [2021-12-06 22:58:43,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107558812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:43,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:43,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:58:43,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458313396] [2021-12-06 22:58:43,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:43,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:58:43,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:58:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:58:43,963 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:58:43,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 1223 transitions, 29103 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:43,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:43,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:58:43,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:48,177 INFO L129 PetriNetUnfolder]: 2736/7635 cut-off events. [2021-12-06 22:58:48,177 INFO L130 PetriNetUnfolder]: For 179386/179450 co-relation queries the response was YES. [2021-12-06 22:58:48,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62469 conditions, 7635 events. 2736/7635 cut-off events. For 179386/179450 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 72559 event pairs, 344 based on Foata normal form. 44/7621 useless extension candidates. Maximal degree in co-relation 62162. Up to 4465 conditions per place. [2021-12-06 22:58:48,301 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1066 selfloop transitions, 216 changer transitions 25/1432 dead transitions. [2021-12-06 22:58:48,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 1432 transitions, 35554 flow [2021-12-06 22:58:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:58:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 22:58:48,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 923 transitions. [2021-12-06 22:58:48,303 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.72562893081761 [2021-12-06 22:58:48,303 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 923 transitions. [2021-12-06 22:58:48,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 923 transitions. [2021-12-06 22:58:48,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:48,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 923 transitions. [2021-12-06 22:58:48,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:48,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:48,305 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:48,305 INFO L186 Difference]: Start difference. First operand has 501 places, 1223 transitions, 29103 flow. Second operand 12 states and 923 transitions. [2021-12-06 22:58:48,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 1432 transitions, 35554 flow [2021-12-06 22:58:49,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 1432 transitions, 35047 flow, removed 28 selfloop flow, removed 3 redundant places. [2021-12-06 22:58:49,694 INFO L242 Difference]: Finished difference. Result has 514 places, 1283 transitions, 31498 flow [2021-12-06 22:58:49,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=28664, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=31498, PETRI_PLACES=514, PETRI_TRANSITIONS=1283} [2021-12-06 22:58:49,695 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 409 predicate places. [2021-12-06 22:58:49,696 INFO L470 AbstractCegarLoop]: Abstraction has has 514 places, 1283 transitions, 31498 flow [2021-12-06 22:58:49,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:49,696 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:49,696 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:49,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 22:58:49,696 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:49,696 INFO L85 PathProgramCache]: Analyzing trace with hash -221055903, now seen corresponding path program 3 times [2021-12-06 22:58:49,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:49,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91990785] [2021-12-06 22:58:49,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:49,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:50,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:50,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91990785] [2021-12-06 22:58:50,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91990785] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:50,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:50,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:58:50,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472563481] [2021-12-06 22:58:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:50,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 22:58:50,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:50,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 22:58:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 22:58:50,221 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:58:50,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 1283 transitions, 31498 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:50,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:50,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:58:50,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:58:55,109 INFO L129 PetriNetUnfolder]: 2931/8150 cut-off events. [2021-12-06 22:58:55,109 INFO L130 PetriNetUnfolder]: For 202603/202707 co-relation queries the response was YES. [2021-12-06 22:58:55,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67433 conditions, 8150 events. 2931/8150 cut-off events. For 202603/202707 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 78265 event pairs, 362 based on Foata normal form. 61/8149 useless extension candidates. Maximal degree in co-relation 67124. Up to 4532 conditions per place. [2021-12-06 22:58:55,245 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1102 selfloop transitions, 287 changer transitions 8/1522 dead transitions. [2021-12-06 22:58:55,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 1522 transitions, 38635 flow [2021-12-06 22:58:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:58:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 22:58:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 932 transitions. [2021-12-06 22:58:55,246 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7327044025157232 [2021-12-06 22:58:55,246 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 932 transitions. [2021-12-06 22:58:55,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 932 transitions. [2021-12-06 22:58:55,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:58:55,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 932 transitions. [2021-12-06 22:58:55,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.66666666666667) internal successors, (932), 12 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:55,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:55,249 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:55,249 INFO L186 Difference]: Start difference. First operand has 514 places, 1283 transitions, 31498 flow. Second operand 12 states and 932 transitions. [2021-12-06 22:58:55,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 1522 transitions, 38635 flow [2021-12-06 22:58:56,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1522 transitions, 38542 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-12-06 22:58:56,826 INFO L242 Difference]: Finished difference. Result has 529 places, 1369 transitions, 35132 flow [2021-12-06 22:58:56,827 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=31418, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35132, PETRI_PLACES=529, PETRI_TRANSITIONS=1369} [2021-12-06 22:58:56,828 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 424 predicate places. [2021-12-06 22:58:56,828 INFO L470 AbstractCegarLoop]: Abstraction has has 529 places, 1369 transitions, 35132 flow [2021-12-06 22:58:56,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:56,828 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:58:56,829 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:58:56,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 22:58:56,829 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:58:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:58:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash 504538941, now seen corresponding path program 4 times [2021-12-06 22:58:56,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:58:56,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072354001] [2021-12-06 22:58:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:58:56,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:58:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:58:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:58:57,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:58:57,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072354001] [2021-12-06 22:58:57,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072354001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:58:57,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:58:57,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:58:57,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274520259] [2021-12-06 22:58:57,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:58:57,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:58:57,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:58:57,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:58:57,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:58:57,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:58:57,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 1369 transitions, 35132 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:58:57,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:58:57,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:58:57,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:02,559 INFO L129 PetriNetUnfolder]: 3096/8633 cut-off events. [2021-12-06 22:59:02,559 INFO L130 PetriNetUnfolder]: For 240040/240189 co-relation queries the response was YES. [2021-12-06 22:59:02,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72857 conditions, 8633 events. 3096/8633 cut-off events. For 240040/240189 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 83961 event pairs, 444 based on Foata normal form. 92/8661 useless extension candidates. Maximal degree in co-relation 72539. Up to 4516 conditions per place. [2021-12-06 22:59:02,734 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1154 selfloop transitions, 332 changer transitions 10/1621 dead transitions. [2021-12-06 22:59:02,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 1621 transitions, 42874 flow [2021-12-06 22:59:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:59:02,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 22:59:02,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 869 transitions. [2021-12-06 22:59:02,736 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2021-12-06 22:59:02,736 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 869 transitions. [2021-12-06 22:59:02,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 869 transitions. [2021-12-06 22:59:02,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:02,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 869 transitions. [2021-12-06 22:59:02,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:02,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:02,739 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:02,739 INFO L186 Difference]: Start difference. First operand has 529 places, 1369 transitions, 35132 flow. Second operand 11 states and 869 transitions. [2021-12-06 22:59:02,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 1621 transitions, 42874 flow [2021-12-06 22:59:04,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 1621 transitions, 42759 flow, removed 35 selfloop flow, removed 2 redundant places. [2021-12-06 22:59:04,777 INFO L242 Difference]: Finished difference. Result has 546 places, 1451 transitions, 39074 flow [2021-12-06 22:59:04,778 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=35024, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1061, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=39074, PETRI_PLACES=546, PETRI_TRANSITIONS=1451} [2021-12-06 22:59:04,779 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 441 predicate places. [2021-12-06 22:59:04,779 INFO L470 AbstractCegarLoop]: Abstraction has has 546 places, 1451 transitions, 39074 flow [2021-12-06 22:59:04,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:04,779 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:04,779 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:04,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 22:59:04,780 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash 77723189, now seen corresponding path program 5 times [2021-12-06 22:59:04,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:04,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250225126] [2021-12-06 22:59:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:04,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:05,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:05,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250225126] [2021-12-06 22:59:05,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250225126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:05,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:05,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:59:05,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490198672] [2021-12-06 22:59:05,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:05,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:59:05,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:05,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:59:05,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:59:05,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:05,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 1451 transitions, 39074 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:05,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:05,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:05,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:11,565 INFO L129 PetriNetUnfolder]: 3323/9207 cut-off events. [2021-12-06 22:59:11,565 INFO L130 PetriNetUnfolder]: For 300133/300317 co-relation queries the response was YES. [2021-12-06 22:59:11,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80169 conditions, 9207 events. 3323/9207 cut-off events. For 300133/300317 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 90691 event pairs, 377 based on Foata normal form. 119/9259 useless extension candidates. Maximal degree in co-relation 79842. Up to 4998 conditions per place. [2021-12-06 22:59:11,733 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1203 selfloop transitions, 401 changer transitions 13/1742 dead transitions. [2021-12-06 22:59:11,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 1742 transitions, 48831 flow [2021-12-06 22:59:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 22:59:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-06 22:59:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1215 transitions. [2021-12-06 22:59:11,735 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7163915094339622 [2021-12-06 22:59:11,735 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1215 transitions. [2021-12-06 22:59:11,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1215 transitions. [2021-12-06 22:59:11,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:11,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1215 transitions. [2021-12-06 22:59:11,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.9375) internal successors, (1215), 16 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:11,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:11,739 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:11,739 INFO L186 Difference]: Start difference. First operand has 546 places, 1451 transitions, 39074 flow. Second operand 16 states and 1215 transitions. [2021-12-06 22:59:11,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 1742 transitions, 48831 flow [2021-12-06 22:59:13,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 1742 transitions, 48710 flow, removed 49 selfloop flow, removed 1 redundant places. [2021-12-06 22:59:13,905 INFO L242 Difference]: Finished difference. Result has 568 places, 1561 transitions, 44690 flow [2021-12-06 22:59:13,906 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=38979, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=307, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=44690, PETRI_PLACES=568, PETRI_TRANSITIONS=1561} [2021-12-06 22:59:13,907 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 463 predicate places. [2021-12-06 22:59:13,907 INFO L470 AbstractCegarLoop]: Abstraction has has 568 places, 1561 transitions, 44690 flow [2021-12-06 22:59:13,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:13,907 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:13,907 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:13,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 22:59:13,907 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:13,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:13,907 INFO L85 PathProgramCache]: Analyzing trace with hash -405296499, now seen corresponding path program 6 times [2021-12-06 22:59:13,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:13,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591885006] [2021-12-06 22:59:13,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:13,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:14,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:14,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591885006] [2021-12-06 22:59:14,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591885006] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:14,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:14,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:59:14,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543715323] [2021-12-06 22:59:14,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:14,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 22:59:14,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 22:59:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-12-06 22:59:14,556 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:14,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1561 transitions, 44690 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:14,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:14,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:14,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:21,013 INFO L129 PetriNetUnfolder]: 3424/9528 cut-off events. [2021-12-06 22:59:21,013 INFO L130 PetriNetUnfolder]: For 343173/343373 co-relation queries the response was YES. [2021-12-06 22:59:21,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84877 conditions, 9528 events. 3424/9528 cut-off events. For 343173/343373 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 94744 event pairs, 410 based on Foata normal form. 114/9575 useless extension candidates. Maximal degree in co-relation 84542. Up to 4876 conditions per place. [2021-12-06 22:59:21,345 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1204 selfloop transitions, 482 changer transitions 9/1820 dead transitions. [2021-12-06 22:59:21,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 1820 transitions, 52828 flow [2021-12-06 22:59:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 22:59:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 22:59:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1167 transitions. [2021-12-06 22:59:21,347 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7339622641509433 [2021-12-06 22:59:21,347 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1167 transitions. [2021-12-06 22:59:21,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1167 transitions. [2021-12-06 22:59:21,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:21,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1167 transitions. [2021-12-06 22:59:21,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.8) internal successors, (1167), 15 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:21,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:21,350 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:21,350 INFO L186 Difference]: Start difference. First operand has 568 places, 1561 transitions, 44690 flow. Second operand 15 states and 1167 transitions. [2021-12-06 22:59:21,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 1820 transitions, 52828 flow [2021-12-06 22:59:23,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 1820 transitions, 52645 flow, removed 57 selfloop flow, removed 3 redundant places. [2021-12-06 22:59:24,021 INFO L242 Difference]: Finished difference. Result has 585 places, 1631 transitions, 48236 flow [2021-12-06 22:59:24,022 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=44517, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=419, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=48236, PETRI_PLACES=585, PETRI_TRANSITIONS=1631} [2021-12-06 22:59:24,022 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 480 predicate places. [2021-12-06 22:59:24,022 INFO L470 AbstractCegarLoop]: Abstraction has has 585 places, 1631 transitions, 48236 flow [2021-12-06 22:59:24,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:24,023 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:24,023 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:24,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 22:59:24,023 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:24,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:24,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1544493265, now seen corresponding path program 7 times [2021-12-06 22:59:24,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:24,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623581289] [2021-12-06 22:59:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:24,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:24,923 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:24,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:24,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623581289] [2021-12-06 22:59:24,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623581289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:24,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:24,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:59:24,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835843341] [2021-12-06 22:59:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:24,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:59:24,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:24,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:59:24,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:59:24,925 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:24,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 1631 transitions, 48236 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:24,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:24,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:24,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:32,100 INFO L129 PetriNetUnfolder]: 3492/9714 cut-off events. [2021-12-06 22:59:32,100 INFO L130 PetriNetUnfolder]: For 373323/373518 co-relation queries the response was YES. [2021-12-06 22:59:32,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88115 conditions, 9714 events. 3492/9714 cut-off events. For 373323/373518 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 96991 event pairs, 411 based on Foata normal form. 100/9745 useless extension candidates. Maximal degree in co-relation 87774. Up to 4689 conditions per place. [2021-12-06 22:59:32,297 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1176 selfloop transitions, 568 changer transitions 12/1881 dead transitions. [2021-12-06 22:59:32,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1881 transitions, 56118 flow [2021-12-06 22:59:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 22:59:32,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 22:59:32,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1296 transitions. [2021-12-06 22:59:32,299 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7192008879023307 [2021-12-06 22:59:32,299 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1296 transitions. [2021-12-06 22:59:32,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1296 transitions. [2021-12-06 22:59:32,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:32,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1296 transitions. [2021-12-06 22:59:32,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 76.23529411764706) internal successors, (1296), 17 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:32,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:32,302 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:32,302 INFO L186 Difference]: Start difference. First operand has 585 places, 1631 transitions, 48236 flow. Second operand 17 states and 1296 transitions. [2021-12-06 22:59:32,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1881 transitions, 56118 flow [2021-12-06 22:59:35,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 1881 transitions, 54982 flow, removed 56 selfloop flow, removed 6 redundant places. [2021-12-06 22:59:35,184 INFO L242 Difference]: Finished difference. Result has 606 places, 1688 transitions, 50775 flow [2021-12-06 22:59:35,186 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=47179, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1092, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=50775, PETRI_PLACES=606, PETRI_TRANSITIONS=1688} [2021-12-06 22:59:35,186 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 501 predicate places. [2021-12-06 22:59:35,186 INFO L470 AbstractCegarLoop]: Abstraction has has 606 places, 1688 transitions, 50775 flow [2021-12-06 22:59:35,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:35,186 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:35,186 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:35,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 22:59:35,186 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:35,187 INFO L85 PathProgramCache]: Analyzing trace with hash 196866331, now seen corresponding path program 8 times [2021-12-06 22:59:35,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:35,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134192935] [2021-12-06 22:59:35,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:35,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:35,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:35,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134192935] [2021-12-06 22:59:35,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134192935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:35,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:35,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:59:35,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996885225] [2021-12-06 22:59:35,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:35,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:59:35,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:59:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:59:35,831 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:35,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1688 transitions, 50775 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:35,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:35,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:35,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:43,011 INFO L129 PetriNetUnfolder]: 3510/9726 cut-off events. [2021-12-06 22:59:43,011 INFO L130 PetriNetUnfolder]: For 382946/383141 co-relation queries the response was YES. [2021-12-06 22:59:43,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90220 conditions, 9726 events. 3510/9726 cut-off events. For 382946/383141 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 97094 event pairs, 428 based on Foata normal form. 135/9788 useless extension candidates. Maximal degree in co-relation 89869. Up to 5216 conditions per place. [2021-12-06 22:59:43,224 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1256 selfloop transitions, 472 changer transitions 8/1861 dead transitions. [2021-12-06 22:59:43,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1861 transitions, 57021 flow [2021-12-06 22:59:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 22:59:43,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 22:59:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1068 transitions. [2021-12-06 22:59:43,226 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7196765498652291 [2021-12-06 22:59:43,226 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1068 transitions. [2021-12-06 22:59:43,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1068 transitions. [2021-12-06 22:59:43,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:43,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1068 transitions. [2021-12-06 22:59:43,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.28571428571429) internal successors, (1068), 14 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:43,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:43,229 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:43,229 INFO L186 Difference]: Start difference. First operand has 606 places, 1688 transitions, 50775 flow. Second operand 14 states and 1068 transitions. [2021-12-06 22:59:43,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 1861 transitions, 57021 flow [2021-12-06 22:59:46,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 1861 transitions, 55895 flow, removed 74 selfloop flow, removed 5 redundant places. [2021-12-06 22:59:46,579 INFO L242 Difference]: Finished difference. Result has 618 places, 1707 transitions, 51566 flow [2021-12-06 22:59:46,580 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=49669, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=454, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=51566, PETRI_PLACES=618, PETRI_TRANSITIONS=1707} [2021-12-06 22:59:46,580 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 513 predicate places. [2021-12-06 22:59:46,581 INFO L470 AbstractCegarLoop]: Abstraction has has 618 places, 1707 transitions, 51566 flow [2021-12-06 22:59:46,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:46,581 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:46,581 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:46,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 22:59:46,581 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:46,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1539165743, now seen corresponding path program 9 times [2021-12-06 22:59:46,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:46,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947528841] [2021-12-06 22:59:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:46,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:47,561 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:47,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:47,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947528841] [2021-12-06 22:59:47,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947528841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:47,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:47,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:59:47,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136753578] [2021-12-06 22:59:47,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:47,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:59:47,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:47,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:59:47,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:59:47,563 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:47,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 1707 transitions, 51566 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:47,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:47,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:47,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:59:55,544 INFO L129 PetriNetUnfolder]: 3561/9919 cut-off events. [2021-12-06 22:59:55,545 INFO L130 PetriNetUnfolder]: For 392912/393100 co-relation queries the response was YES. [2021-12-06 22:59:55,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92542 conditions, 9919 events. 3561/9919 cut-off events. For 392912/393100 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 99707 event pairs, 411 based on Foata normal form. 108/9953 useless extension candidates. Maximal degree in co-relation 92188. Up to 4993 conditions per place. [2021-12-06 22:59:55,749 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1243 selfloop transitions, 557 changer transitions 8/1933 dead transitions. [2021-12-06 22:59:55,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 1933 transitions, 59474 flow [2021-12-06 22:59:55,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 22:59:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 22:59:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1292 transitions. [2021-12-06 22:59:55,751 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2021-12-06 22:59:55,751 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1292 transitions. [2021-12-06 22:59:55,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1292 transitions. [2021-12-06 22:59:55,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:59:55,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1292 transitions. [2021-12-06 22:59:55,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 76.0) internal successors, (1292), 17 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:55,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:55,754 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:55,754 INFO L186 Difference]: Start difference. First operand has 618 places, 1707 transitions, 51566 flow. Second operand 17 states and 1292 transitions. [2021-12-06 22:59:55,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 1933 transitions, 59474 flow [2021-12-06 22:59:58,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 1933 transitions, 58839 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-12-06 22:59:58,936 INFO L242 Difference]: Finished difference. Result has 636 places, 1754 transitions, 54273 flow [2021-12-06 22:59:58,937 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=50972, PETRI_DIFFERENCE_MINUEND_PLACES=613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=511, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=54273, PETRI_PLACES=636, PETRI_TRANSITIONS=1754} [2021-12-06 22:59:58,938 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 531 predicate places. [2021-12-06 22:59:58,938 INFO L470 AbstractCegarLoop]: Abstraction has has 636 places, 1754 transitions, 54273 flow [2021-12-06 22:59:58,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:58,938 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:59:58,938 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:59:58,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 22:59:58,938 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 22:59:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:59:58,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1708014443, now seen corresponding path program 10 times [2021-12-06 22:59:58,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:59:58,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777954883] [2021-12-06 22:59:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:59:58,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:59:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:59:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 22:59:59,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:59:59,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777954883] [2021-12-06 22:59:59,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777954883] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:59:59,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:59:59,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 22:59:59,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79532298] [2021-12-06 22:59:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:59:59,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:59:59,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:59:59,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:59:59,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:59:59,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 22:59:59,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 1754 transitions, 54273 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:59:59,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:59:59,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 22:59:59,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:00:08,027 INFO L129 PetriNetUnfolder]: 3713/10328 cut-off events. [2021-12-06 23:00:08,028 INFO L130 PetriNetUnfolder]: For 425186/425406 co-relation queries the response was YES. [2021-12-06 23:00:08,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98388 conditions, 10328 events. 3713/10328 cut-off events. For 425186/425406 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 104549 event pairs, 413 based on Foata normal form. 145/10395 useless extension candidates. Maximal degree in co-relation 98027. Up to 4784 conditions per place. [2021-12-06 23:00:08,260 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1231 selfloop transitions, 664 changer transitions 5/2025 dead transitions. [2021-12-06 23:00:08,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 2025 transitions, 63697 flow [2021-12-06 23:00:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 23:00:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-06 23:00:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1307 transitions. [2021-12-06 23:00:08,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7253052164261932 [2021-12-06 23:00:08,262 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1307 transitions. [2021-12-06 23:00:08,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1307 transitions. [2021-12-06 23:00:08,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:00:08,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1307 transitions. [2021-12-06 23:00:08,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 76.88235294117646) internal successors, (1307), 17 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:08,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:08,265 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:08,265 INFO L186 Difference]: Start difference. First operand has 636 places, 1754 transitions, 54273 flow. Second operand 17 states and 1307 transitions. [2021-12-06 23:00:08,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 2025 transitions, 63697 flow [2021-12-06 23:00:12,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 2025 transitions, 62838 flow, removed 53 selfloop flow, removed 6 redundant places. [2021-12-06 23:00:12,163 INFO L242 Difference]: Finished difference. Result has 654 places, 1828 transitions, 58299 flow [2021-12-06 23:00:12,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=53494, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=591, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=58299, PETRI_PLACES=654, PETRI_TRANSITIONS=1828} [2021-12-06 23:00:12,165 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 549 predicate places. [2021-12-06 23:00:12,165 INFO L470 AbstractCegarLoop]: Abstraction has has 654 places, 1828 transitions, 58299 flow [2021-12-06 23:00:12,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:12,165 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:00:12,166 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:00:12,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 23:00:12,166 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:00:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:00:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1432364191, now seen corresponding path program 11 times [2021-12-06 23:00:12,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:00:12,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198398379] [2021-12-06 23:00:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:00:12,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:00:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:00:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:00:12,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:00:12,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198398379] [2021-12-06 23:00:12,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198398379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:00:12,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:00:12,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:00:12,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074965884] [2021-12-06 23:00:12,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:00:12,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:00:12,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:00:12,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:00:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:00:12,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:00:12,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1828 transitions, 58299 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:12,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:00:12,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:00:12,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:00:21,318 INFO L129 PetriNetUnfolder]: 3775/10510 cut-off events. [2021-12-06 23:00:21,318 INFO L130 PetriNetUnfolder]: For 465562/465811 co-relation queries the response was YES. [2021-12-06 23:00:21,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102168 conditions, 10510 events. 3775/10510 cut-off events. For 465562/465811 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 106827 event pairs, 459 based on Foata normal form. 166/10594 useless extension candidates. Maximal degree in co-relation 101799. Up to 4822 conditions per place. [2021-12-06 23:00:21,560 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1253 selfloop transitions, 673 changer transitions 8/2059 dead transitions. [2021-12-06 23:00:21,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 2059 transitions, 66659 flow [2021-12-06 23:00:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 23:00:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 23:00:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1102 transitions. [2021-12-06 23:00:21,562 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7425876010781671 [2021-12-06 23:00:21,562 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1102 transitions. [2021-12-06 23:00:21,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1102 transitions. [2021-12-06 23:00:21,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:00:21,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1102 transitions. [2021-12-06 23:00:21,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.71428571428571) internal successors, (1102), 14 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:21,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:21,565 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:21,565 INFO L186 Difference]: Start difference. First operand has 654 places, 1828 transitions, 58299 flow. Second operand 14 states and 1102 transitions. [2021-12-06 23:00:21,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 2059 transitions, 66659 flow [2021-12-06 23:00:25,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 2059 transitions, 65668 flow, removed 33 selfloop flow, removed 10 redundant places. [2021-12-06 23:00:25,574 INFO L242 Difference]: Finished difference. Result has 664 places, 1874 transitions, 61188 flow [2021-12-06 23:00:25,575 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=57358, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1828, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=627, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=61188, PETRI_PLACES=664, PETRI_TRANSITIONS=1874} [2021-12-06 23:00:25,575 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 559 predicate places. [2021-12-06 23:00:25,575 INFO L470 AbstractCegarLoop]: Abstraction has has 664 places, 1874 transitions, 61188 flow [2021-12-06 23:00:25,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:25,575 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:00:25,576 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:00:25,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 23:00:25,576 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:00:25,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:00:25,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1464921171, now seen corresponding path program 12 times [2021-12-06 23:00:25,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:00:25,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31467578] [2021-12-06 23:00:25,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:00:25,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:00:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:00:25,794 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:00:25,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:00:25,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31467578] [2021-12-06 23:00:25,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31467578] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:00:25,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:00:25,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:00:25,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938282428] [2021-12-06 23:00:25,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:00:25,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:00:25,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:00:25,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:00:25,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:00:25,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:00:25,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 664 places, 1874 transitions, 61188 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:25,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:00:25,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:00:25,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:00:33,938 INFO L129 PetriNetUnfolder]: 3817/10624 cut-off events. [2021-12-06 23:00:33,938 INFO L130 PetriNetUnfolder]: For 487660/487933 co-relation queries the response was YES. [2021-12-06 23:00:34,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104438 conditions, 10624 events. 3817/10624 cut-off events. For 487660/487933 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 107666 event pairs, 515 based on Foata normal form. 175/10720 useless extension candidates. Maximal degree in co-relation 104064. Up to 5207 conditions per place. [2021-12-06 23:00:34,176 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1434 selfloop transitions, 486 changer transitions 17/2062 dead transitions. [2021-12-06 23:00:34,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 675 places, 2062 transitions, 67610 flow [2021-12-06 23:00:34,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:00:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:00:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 952 transitions. [2021-12-06 23:00:34,177 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7484276729559748 [2021-12-06 23:00:34,177 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 952 transitions. [2021-12-06 23:00:34,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 952 transitions. [2021-12-06 23:00:34,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:00:34,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 952 transitions. [2021-12-06 23:00:34,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.33333333333333) internal successors, (952), 12 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:34,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:34,179 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:34,179 INFO L186 Difference]: Start difference. First operand has 664 places, 1874 transitions, 61188 flow. Second operand 12 states and 952 transitions. [2021-12-06 23:00:34,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 675 places, 2062 transitions, 67610 flow [2021-12-06 23:00:38,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 670 places, 2062 transitions, 66767 flow, removed 87 selfloop flow, removed 5 redundant places. [2021-12-06 23:00:38,390 INFO L242 Difference]: Finished difference. Result has 675 places, 1905 transitions, 62726 flow [2021-12-06 23:00:38,391 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=60382, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1874, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=457, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=62726, PETRI_PLACES=675, PETRI_TRANSITIONS=1905} [2021-12-06 23:00:38,391 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 570 predicate places. [2021-12-06 23:00:38,391 INFO L470 AbstractCegarLoop]: Abstraction has has 675 places, 1905 transitions, 62726 flow [2021-12-06 23:00:38,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:38,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:00:38,392 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:00:38,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 23:00:38,392 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:00:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:00:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash 239494753, now seen corresponding path program 13 times [2021-12-06 23:00:38,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:00:38,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736829923] [2021-12-06 23:00:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:00:38,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:00:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:00:39,297 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:00:39,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:00:39,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736829923] [2021-12-06 23:00:39,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736829923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:00:39,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:00:39,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:00:39,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132385525] [2021-12-06 23:00:39,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:00:39,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:00:39,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:00:39,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:00:39,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:00:39,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:00:39,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 675 places, 1905 transitions, 62726 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:39,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:00:39,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:00:39,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:00:48,704 INFO L129 PetriNetUnfolder]: 3966/10997 cut-off events. [2021-12-06 23:00:48,705 INFO L130 PetriNetUnfolder]: For 546590/546855 co-relation queries the response was YES. [2021-12-06 23:00:48,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110030 conditions, 10997 events. 3966/10997 cut-off events. For 546590/546855 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 112545 event pairs, 452 based on Foata normal form. 171/11086 useless extension candidates. Maximal degree in co-relation 109727. Up to 4258 conditions per place. [2021-12-06 23:00:48,989 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1344 selfloop transitions, 724 changer transitions 8/2201 dead transitions. [2021-12-06 23:00:48,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 2201 transitions, 72908 flow [2021-12-06 23:00:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 23:00:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 23:00:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1059 transitions. [2021-12-06 23:00:48,991 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7685050798258345 [2021-12-06 23:00:48,991 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1059 transitions. [2021-12-06 23:00:48,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1059 transitions. [2021-12-06 23:00:48,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:00:48,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1059 transitions. [2021-12-06 23:00:48,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:48,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:48,995 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:48,995 INFO L186 Difference]: Start difference. First operand has 675 places, 1905 transitions, 62726 flow. Second operand 13 states and 1059 transitions. [2021-12-06 23:00:48,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 2201 transitions, 72908 flow [2021-12-06 23:00:53,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 683 places, 2201 transitions, 72665 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-12-06 23:00:53,688 INFO L242 Difference]: Finished difference. Result has 689 places, 1973 transitions, 67367 flow [2021-12-06 23:00:53,689 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=62524, PETRI_DIFFERENCE_MINUEND_PLACES=671, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1905, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=657, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=67367, PETRI_PLACES=689, PETRI_TRANSITIONS=1973} [2021-12-06 23:00:53,689 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 584 predicate places. [2021-12-06 23:00:53,689 INFO L470 AbstractCegarLoop]: Abstraction has has 689 places, 1973 transitions, 67367 flow [2021-12-06 23:00:53,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:53,690 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:00:53,690 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:00:53,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 23:00:53,690 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:00:53,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:00:53,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1327384409, now seen corresponding path program 1 times [2021-12-06 23:00:53,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:00:53,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53347494] [2021-12-06 23:00:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:00:53,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:00:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:00:53,942 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:00:53,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:00:53,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53347494] [2021-12-06 23:00:53,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53347494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:00:53,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:00:53,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:00:53,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165573640] [2021-12-06 23:00:53,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:00:53,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:00:53,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:00:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:00:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:00:53,944 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 106 [2021-12-06 23:00:53,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 1973 transitions, 67367 flow. Second operand has 11 states, 11 states have (on average 59.63636363636363) internal successors, (656), 11 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:00:53,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:00:53,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 106 [2021-12-06 23:00:53,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:01:04,714 INFO L129 PetriNetUnfolder]: 4722/12367 cut-off events. [2021-12-06 23:01:04,714 INFO L130 PetriNetUnfolder]: For 664393/664598 co-relation queries the response was YES. [2021-12-06 23:01:04,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126053 conditions, 12367 events. 4722/12367 cut-off events. For 664393/664598 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 123423 event pairs, 1131 based on Foata normal form. 193/12503 useless extension candidates. Maximal degree in co-relation 125625. Up to 6113 conditions per place. [2021-12-06 23:01:04,998 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 1646 selfloop transitions, 405 changer transitions 80/2249 dead transitions. [2021-12-06 23:01:04,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 704 places, 2249 transitions, 77919 flow [2021-12-06 23:01:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 23:01:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-06 23:01:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1139 transitions. [2021-12-06 23:01:05,000 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6715801886792453 [2021-12-06 23:01:05,000 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1139 transitions. [2021-12-06 23:01:05,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1139 transitions. [2021-12-06 23:01:05,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:01:05,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1139 transitions. [2021-12-06 23:01:05,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 71.1875) internal successors, (1139), 16 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:05,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:05,002 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:05,003 INFO L186 Difference]: Start difference. First operand has 689 places, 1973 transitions, 67367 flow. Second operand 16 states and 1139 transitions. [2021-12-06 23:01:05,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 704 places, 2249 transitions, 77919 flow [2021-12-06 23:01:10,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 699 places, 2249 transitions, 77141 flow, removed 28 selfloop flow, removed 5 redundant places. [2021-12-06 23:01:10,940 INFO L242 Difference]: Finished difference. Result has 710 places, 2035 transitions, 69379 flow [2021-12-06 23:01:10,941 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=66670, PETRI_DIFFERENCE_MINUEND_PLACES=684, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=69379, PETRI_PLACES=710, PETRI_TRANSITIONS=2035} [2021-12-06 23:01:10,942 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 605 predicate places. [2021-12-06 23:01:10,942 INFO L470 AbstractCegarLoop]: Abstraction has has 710 places, 2035 transitions, 69379 flow [2021-12-06 23:01:10,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 59.63636363636363) internal successors, (656), 11 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:10,942 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:01:10,942 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:01:10,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 23:01:10,942 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:01:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:01:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1432989959, now seen corresponding path program 14 times [2021-12-06 23:01:10,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:01:10,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856800117] [2021-12-06 23:01:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:01:10,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:01:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:01:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:01:11,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:01:11,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856800117] [2021-12-06 23:01:11,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856800117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:01:11,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:01:11,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:01:11,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155231188] [2021-12-06 23:01:11,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:01:11,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:01:11,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:01:11,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:01:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:01:11,800 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:01:11,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 2035 transitions, 69379 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:11,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:01:11,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:01:11,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:01:22,260 INFO L129 PetriNetUnfolder]: 4084/11367 cut-off events. [2021-12-06 23:01:22,260 INFO L130 PetriNetUnfolder]: For 634106/634401 co-relation queries the response was YES. [2021-12-06 23:01:22,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121577 conditions, 11367 events. 4084/11367 cut-off events. For 634106/634401 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 117217 event pairs, 470 based on Foata normal form. 185/11470 useless extension candidates. Maximal degree in co-relation 121296. Up to 4303 conditions per place. [2021-12-06 23:01:22,570 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1410 selfloop transitions, 777 changer transitions 8/2321 dead transitions. [2021-12-06 23:01:22,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 2321 transitions, 80430 flow [2021-12-06 23:01:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 23:01:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 23:01:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1059 transitions. [2021-12-06 23:01:22,572 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7685050798258345 [2021-12-06 23:01:22,572 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1059 transitions. [2021-12-06 23:01:22,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1059 transitions. [2021-12-06 23:01:22,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:01:22,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1059 transitions. [2021-12-06 23:01:22,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 81.46153846153847) internal successors, (1059), 13 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:22,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:22,574 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:22,574 INFO L186 Difference]: Start difference. First operand has 710 places, 2035 transitions, 69379 flow. Second operand 13 states and 1059 transitions. [2021-12-06 23:01:22,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 2321 transitions, 80430 flow [2021-12-06 23:01:28,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 713 places, 2321 transitions, 80206 flow, removed 78 selfloop flow, removed 4 redundant places. [2021-12-06 23:01:28,978 INFO L242 Difference]: Finished difference. Result has 720 places, 2111 transitions, 74589 flow [2021-12-06 23:01:28,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=69167, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2035, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=702, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=74589, PETRI_PLACES=720, PETRI_TRANSITIONS=2111} [2021-12-06 23:01:28,980 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 615 predicate places. [2021-12-06 23:01:28,980 INFO L470 AbstractCegarLoop]: Abstraction has has 720 places, 2111 transitions, 74589 flow [2021-12-06 23:01:28,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:28,980 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:01:28,980 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:01:28,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 23:01:28,980 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:01:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:01:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash 411712873, now seen corresponding path program 15 times [2021-12-06 23:01:28,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:01:28,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159200954] [2021-12-06 23:01:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:01:28,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:01:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:01:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:01:29,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:01:29,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159200954] [2021-12-06 23:01:29,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159200954] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:01:29,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:01:29,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:01:29,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969489176] [2021-12-06 23:01:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:01:29,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:01:29,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:01:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:01:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:01:29,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:01:29,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 720 places, 2111 transitions, 74589 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:29,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:01:29,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:01:29,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:01:40,504 INFO L129 PetriNetUnfolder]: 4240/11790 cut-off events. [2021-12-06 23:01:40,504 INFO L130 PetriNetUnfolder]: For 718639/718962 co-relation queries the response was YES. [2021-12-06 23:01:40,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130107 conditions, 11790 events. 4240/11790 cut-off events. For 718639/718962 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 122603 event pairs, 549 based on Foata normal form. 210/11914 useless extension candidates. Maximal degree in co-relation 129779. Up to 4357 conditions per place. [2021-12-06 23:01:40,873 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1456 selfloop transitions, 816 changer transitions 9/2407 dead transitions. [2021-12-06 23:01:40,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 2407 transitions, 86389 flow [2021-12-06 23:01:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 23:01:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 23:01:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1061 transitions. [2021-12-06 23:01:40,874 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7699564586357039 [2021-12-06 23:01:40,874 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1061 transitions. [2021-12-06 23:01:40,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1061 transitions. [2021-12-06 23:01:40,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:01:40,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1061 transitions. [2021-12-06 23:01:40,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 81.61538461538461) internal successors, (1061), 13 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:40,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:40,876 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:40,877 INFO L186 Difference]: Start difference. First operand has 720 places, 2111 transitions, 74589 flow. Second operand 13 states and 1061 transitions. [2021-12-06 23:01:40,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 732 places, 2407 transitions, 86389 flow [2021-12-06 23:01:48,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 728 places, 2407 transitions, 85596 flow, removed 33 selfloop flow, removed 4 redundant places. [2021-12-06 23:01:48,361 INFO L242 Difference]: Finished difference. Result has 736 places, 2191 transitions, 79664 flow [2021-12-06 23:01:48,362 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=73854, PETRI_DIFFERENCE_MINUEND_PLACES=716, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=737, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=79664, PETRI_PLACES=736, PETRI_TRANSITIONS=2191} [2021-12-06 23:01:48,362 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 631 predicate places. [2021-12-06 23:01:48,362 INFO L470 AbstractCegarLoop]: Abstraction has has 736 places, 2191 transitions, 79664 flow [2021-12-06 23:01:48,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:48,363 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:01:48,363 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:01:48,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 23:01:48,363 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:01:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:01:48,363 INFO L85 PathProgramCache]: Analyzing trace with hash -274390563, now seen corresponding path program 16 times [2021-12-06 23:01:48,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:01:48,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105484153] [2021-12-06 23:01:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:01:48,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:01:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:01:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:01:49,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:01:49,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105484153] [2021-12-06 23:01:49,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105484153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:01:49,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:01:49,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:01:49,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61548586] [2021-12-06 23:01:49,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:01:49,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:01:49,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:01:49,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:01:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:01:49,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:01:49,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 736 places, 2191 transitions, 79664 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:01:49,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:01:49,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:01:49,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:02:00,555 INFO L129 PetriNetUnfolder]: 4260/11821 cut-off events. [2021-12-06 23:02:00,555 INFO L130 PetriNetUnfolder]: For 771255/771565 co-relation queries the response was YES. [2021-12-06 23:02:00,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133732 conditions, 11821 events. 4260/11821 cut-off events. For 771255/771565 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 122923 event pairs, 529 based on Foata normal form. 203/11942 useless extension candidates. Maximal degree in co-relation 133396. Up to 4357 conditions per place. [2021-12-06 23:02:00,944 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1438 selfloop transitions, 822 changer transitions 8/2394 dead transitions. [2021-12-06 23:02:00,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 747 places, 2394 transitions, 88131 flow [2021-12-06 23:02:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:02:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:02:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 980 transitions. [2021-12-06 23:02:00,946 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7704402515723271 [2021-12-06 23:02:00,946 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 980 transitions. [2021-12-06 23:02:00,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 980 transitions. [2021-12-06 23:02:00,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:02:00,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 980 transitions. [2021-12-06 23:02:00,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.66666666666667) internal successors, (980), 12 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:00,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:00,948 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:00,948 INFO L186 Difference]: Start difference. First operand has 736 places, 2191 transitions, 79664 flow. Second operand 12 states and 980 transitions. [2021-12-06 23:02:00,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 747 places, 2394 transitions, 88131 flow [2021-12-06 23:02:08,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 743 places, 2394 transitions, 87323 flow, removed 44 selfloop flow, removed 4 redundant places. [2021-12-06 23:02:08,717 INFO L242 Difference]: Finished difference. Result has 746 places, 2206 transitions, 81265 flow [2021-12-06 23:02:08,719 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=78856, PETRI_DIFFERENCE_MINUEND_PLACES=732, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=807, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=81265, PETRI_PLACES=746, PETRI_TRANSITIONS=2206} [2021-12-06 23:02:08,719 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 641 predicate places. [2021-12-06 23:02:08,719 INFO L470 AbstractCegarLoop]: Abstraction has has 746 places, 2206 transitions, 81265 flow [2021-12-06 23:02:08,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:08,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:02:08,719 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:02:08,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 23:02:08,719 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:02:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:02:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1811819993, now seen corresponding path program 17 times [2021-12-06 23:02:08,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:02:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034828541] [2021-12-06 23:02:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:02:08,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:02:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:02:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:02:09,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:02:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034828541] [2021-12-06 23:02:09,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034828541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:02:09,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:02:09,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:02:09,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046481491] [2021-12-06 23:02:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:02:09,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:02:09,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:02:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:02:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:02:09,311 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:02:09,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 2206 transitions, 81265 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:09,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:02:09,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:02:09,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:02:20,644 INFO L129 PetriNetUnfolder]: 4289/11875 cut-off events. [2021-12-06 23:02:20,644 INFO L130 PetriNetUnfolder]: For 813170/813492 co-relation queries the response was YES. [2021-12-06 23:02:20,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136175 conditions, 11875 events. 4289/11875 cut-off events. For 813170/813492 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 123252 event pairs, 563 based on Foata normal form. 214/11998 useless extension candidates. Maximal degree in co-relation 135836. Up to 4357 conditions per place. [2021-12-06 23:02:20,955 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1455 selfloop transitions, 821 changer transitions 6/2408 dead transitions. [2021-12-06 23:02:20,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 757 places, 2408 transitions, 89953 flow [2021-12-06 23:02:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:02:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:02:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 961 transitions. [2021-12-06 23:02:20,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7555031446540881 [2021-12-06 23:02:20,957 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 961 transitions. [2021-12-06 23:02:20,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 961 transitions. [2021-12-06 23:02:20,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:02:20,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 961 transitions. [2021-12-06 23:02:20,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.08333333333333) internal successors, (961), 12 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:20,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:20,959 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:20,959 INFO L186 Difference]: Start difference. First operand has 746 places, 2206 transitions, 81265 flow. Second operand 12 states and 961 transitions. [2021-12-06 23:02:20,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 757 places, 2408 transitions, 89953 flow [2021-12-06 23:02:28,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 750 places, 2408 transitions, 88590 flow, removed 21 selfloop flow, removed 7 redundant places. [2021-12-06 23:02:28,888 INFO L242 Difference]: Finished difference. Result has 755 places, 2240 transitions, 83056 flow [2021-12-06 23:02:28,889 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=79919, PETRI_DIFFERENCE_MINUEND_PLACES=739, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=794, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=83056, PETRI_PLACES=755, PETRI_TRANSITIONS=2240} [2021-12-06 23:02:28,889 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 650 predicate places. [2021-12-06 23:02:28,890 INFO L470 AbstractCegarLoop]: Abstraction has has 755 places, 2240 transitions, 83056 flow [2021-12-06 23:02:28,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:28,890 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:02:28,890 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:02:28,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 23:02:28,890 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:02:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:02:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 546244171, now seen corresponding path program 18 times [2021-12-06 23:02:28,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:02:28,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900118994] [2021-12-06 23:02:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:02:28,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:02:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:02:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:02:29,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:02:29,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900118994] [2021-12-06 23:02:29,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900118994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:02:29,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:02:29,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:02:29,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804974711] [2021-12-06 23:02:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:02:29,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:02:29,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:02:29,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:02:29,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:02:29,649 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:02:29,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 2240 transitions, 83056 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:29,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:02:29,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:02:29,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:02:41,486 INFO L129 PetriNetUnfolder]: 4301/11896 cut-off events. [2021-12-06 23:02:41,487 INFO L130 PetriNetUnfolder]: For 833974/834277 co-relation queries the response was YES. [2021-12-06 23:02:41,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137695 conditions, 11896 events. 4301/11896 cut-off events. For 833974/834277 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 123636 event pairs, 532 based on Foata normal form. 195/12004 useless extension candidates. Maximal degree in co-relation 137351. Up to 4357 conditions per place. [2021-12-06 23:02:41,815 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1447 selfloop transitions, 850 changer transitions 6/2429 dead transitions. [2021-12-06 23:02:41,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 766 places, 2429 transitions, 91450 flow [2021-12-06 23:02:41,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:02:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:02:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 966 transitions. [2021-12-06 23:02:41,817 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7594339622641509 [2021-12-06 23:02:41,817 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 966 transitions. [2021-12-06 23:02:41,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 966 transitions. [2021-12-06 23:02:41,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:02:41,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 966 transitions. [2021-12-06 23:02:41,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.5) internal successors, (966), 12 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:41,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:41,819 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:41,819 INFO L186 Difference]: Start difference. First operand has 755 places, 2240 transitions, 83056 flow. Second operand 12 states and 966 transitions. [2021-12-06 23:02:41,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 766 places, 2429 transitions, 91450 flow [2021-12-06 23:02:49,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 758 places, 2429 transitions, 90025 flow, removed 76 selfloop flow, removed 8 redundant places. [2021-12-06 23:02:49,714 INFO L242 Difference]: Finished difference. Result has 762 places, 2263 transitions, 84522 flow [2021-12-06 23:02:49,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=81689, PETRI_DIFFERENCE_MINUEND_PLACES=747, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=830, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=84522, PETRI_PLACES=762, PETRI_TRANSITIONS=2263} [2021-12-06 23:02:49,716 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 657 predicate places. [2021-12-06 23:02:49,716 INFO L470 AbstractCegarLoop]: Abstraction has has 762 places, 2263 transitions, 84522 flow [2021-12-06 23:02:49,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:49,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:02:49,717 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:02:49,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 23:02:49,717 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:02:49,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:02:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1853577661, now seen corresponding path program 19 times [2021-12-06 23:02:49,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:02:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967892054] [2021-12-06 23:02:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:02:49,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:02:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:02:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:02:50,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:02:50,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967892054] [2021-12-06 23:02:50,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967892054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:02:50,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:02:50,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:02:50,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933875633] [2021-12-06 23:02:50,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:02:50,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:02:50,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:02:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:02:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:02:50,326 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:02:50,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 2263 transitions, 84522 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:02:50,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:02:50,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:02:50,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:03:02,244 INFO L129 PetriNetUnfolder]: 4328/11969 cut-off events. [2021-12-06 23:03:02,244 INFO L130 PetriNetUnfolder]: For 853662/853972 co-relation queries the response was YES. [2021-12-06 23:03:02,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139248 conditions, 11969 events. 4328/11969 cut-off events. For 853662/853972 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 124473 event pairs, 545 based on Foata normal form. 200/12083 useless extension candidates. Maximal degree in co-relation 138900. Up to 4357 conditions per place. [2021-12-06 23:03:02,563 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1504 selfloop transitions, 834 changer transitions 9/2473 dead transitions. [2021-12-06 23:03:02,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 773 places, 2473 transitions, 93446 flow [2021-12-06 23:03:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:03:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:03:02,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 982 transitions. [2021-12-06 23:03:02,565 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7720125786163522 [2021-12-06 23:03:02,565 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 982 transitions. [2021-12-06 23:03:02,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 982 transitions. [2021-12-06 23:03:02,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:03:02,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 982 transitions. [2021-12-06 23:03:02,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.83333333333333) internal successors, (982), 12 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:02,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:02,567 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:02,567 INFO L186 Difference]: Start difference. First operand has 762 places, 2263 transitions, 84522 flow. Second operand 12 states and 982 transitions. [2021-12-06 23:03:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 773 places, 2473 transitions, 93446 flow [2021-12-06 23:03:10,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 766 places, 2473 transitions, 92083 flow, removed 14 selfloop flow, removed 7 redundant places. [2021-12-06 23:03:10,710 INFO L242 Difference]: Finished difference. Result has 769 places, 2288 transitions, 86056 flow [2021-12-06 23:03:10,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=83177, PETRI_DIFFERENCE_MINUEND_PLACES=755, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=809, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=86056, PETRI_PLACES=769, PETRI_TRANSITIONS=2288} [2021-12-06 23:03:10,712 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 664 predicate places. [2021-12-06 23:03:10,712 INFO L470 AbstractCegarLoop]: Abstraction has has 769 places, 2288 transitions, 86056 flow [2021-12-06 23:03:10,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:10,712 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:03:10,712 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:03:10,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 23:03:10,712 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:03:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:03:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 362003575, now seen corresponding path program 20 times [2021-12-06 23:03:10,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:03:10,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644912567] [2021-12-06 23:03:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:03:10,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:03:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:03:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:03:11,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:03:11,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644912567] [2021-12-06 23:03:11,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644912567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:03:11,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:03:11,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:03:11,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26326584] [2021-12-06 23:03:11,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:03:11,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:03:11,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:03:11,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:03:11,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:03:11,480 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:03:11,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 769 places, 2288 transitions, 86056 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:11,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:03:11,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:03:11,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:03:23,712 INFO L129 PetriNetUnfolder]: 4335/11975 cut-off events. [2021-12-06 23:03:23,712 INFO L130 PetriNetUnfolder]: For 875920/876223 co-relation queries the response was YES. [2021-12-06 23:03:24,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140132 conditions, 11975 events. 4335/11975 cut-off events. For 875920/876223 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 124446 event pairs, 513 based on Foata normal form. 201/12095 useless extension candidates. Maximal degree in co-relation 139781. Up to 4357 conditions per place. [2021-12-06 23:03:24,133 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1465 selfloop transitions, 870 changer transitions 6/2467 dead transitions. [2021-12-06 23:03:24,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 2467 transitions, 94099 flow [2021-12-06 23:03:24,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:03:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:03:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 971 transitions. [2021-12-06 23:03:24,134 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7633647798742138 [2021-12-06 23:03:24,134 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 971 transitions. [2021-12-06 23:03:24,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 971 transitions. [2021-12-06 23:03:24,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:03:24,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 971 transitions. [2021-12-06 23:03:24,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 80.91666666666667) internal successors, (971), 12 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:24,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:24,136 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:24,136 INFO L186 Difference]: Start difference. First operand has 769 places, 2288 transitions, 86056 flow. Second operand 12 states and 971 transitions. [2021-12-06 23:03:24,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 780 places, 2467 transitions, 94099 flow [2021-12-06 23:03:32,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 2467 transitions, 92790 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-12-06 23:03:32,420 INFO L242 Difference]: Finished difference. Result has 777 places, 2295 transitions, 87040 flow [2021-12-06 23:03:32,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=84767, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=864, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=87040, PETRI_PLACES=777, PETRI_TRANSITIONS=2295} [2021-12-06 23:03:32,422 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 672 predicate places. [2021-12-06 23:03:32,422 INFO L470 AbstractCegarLoop]: Abstraction has has 777 places, 2295 transitions, 87040 flow [2021-12-06 23:03:32,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:32,422 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:03:32,423 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:03:32,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 23:03:32,423 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:03:32,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:03:32,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1244432379, now seen corresponding path program 21 times [2021-12-06 23:03:32,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:03:32,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648373925] [2021-12-06 23:03:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:03:32,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:03:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:03:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:03:33,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:03:33,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648373925] [2021-12-06 23:03:33,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648373925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:03:33,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:03:33,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:03:33,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429714676] [2021-12-06 23:03:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:03:33,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:03:33,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:03:33,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:03:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:03:33,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:03:33,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 777 places, 2295 transitions, 87040 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:33,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:03:33,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:03:33,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:03:45,459 INFO L129 PetriNetUnfolder]: 4361/12026 cut-off events. [2021-12-06 23:03:45,459 INFO L130 PetriNetUnfolder]: For 899851/900155 co-relation queries the response was YES. [2021-12-06 23:03:45,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141894 conditions, 12026 events. 4361/12026 cut-off events. For 899851/900155 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 124900 event pairs, 514 based on Foata normal form. 194/12131 useless extension candidates. Maximal degree in co-relation 141540. Up to 4357 conditions per place. [2021-12-06 23:03:45,973 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1519 selfloop transitions, 858 changer transitions 9/2512 dead transitions. [2021-12-06 23:03:45,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 2512 transitions, 96417 flow [2021-12-06 23:03:45,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:03:45,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:03:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 976 transitions. [2021-12-06 23:03:45,976 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2021-12-06 23:03:45,976 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 976 transitions. [2021-12-06 23:03:45,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 976 transitions. [2021-12-06 23:03:45,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:03:45,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 976 transitions. [2021-12-06 23:03:45,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.33333333333333) internal successors, (976), 12 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) [2021-12-06 23:03:45,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:45,978 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:45,978 INFO L186 Difference]: Start difference. First operand has 777 places, 2295 transitions, 87040 flow. Second operand 12 states and 976 transitions. [2021-12-06 23:03:45,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 2512 transitions, 96417 flow [2021-12-06 23:03:54,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 2512 transitions, 94816 flow, removed 40 selfloop flow, removed 9 redundant places. [2021-12-06 23:03:54,455 INFO L242 Difference]: Finished difference. Result has 783 places, 2333 transitions, 88891 flow [2021-12-06 23:03:54,457 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=85485, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=820, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=88891, PETRI_PLACES=783, PETRI_TRANSITIONS=2333} [2021-12-06 23:03:54,457 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 678 predicate places. [2021-12-06 23:03:54,457 INFO L470 AbstractCegarLoop]: Abstraction has has 783 places, 2333 transitions, 88891 flow [2021-12-06 23:03:54,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:54,457 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:03:54,457 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:03:54,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 23:03:54,457 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:03:54,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:03:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1519693021, now seen corresponding path program 18 times [2021-12-06 23:03:54,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:03:54,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286928478] [2021-12-06 23:03:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:03:54,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:03:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:03:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:03:54,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:03:54,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286928478] [2021-12-06 23:03:54,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286928478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:03:54,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:03:54,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:03:54,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037313283] [2021-12-06 23:03:54,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:03:54,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:03:54,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:03:54,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:03:54,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:03:54,714 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 23:03:54,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 2333 transitions, 88891 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:03:54,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:03:54,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 23:03:54,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:04:08,825 INFO L129 PetriNetUnfolder]: 5157/13627 cut-off events. [2021-12-06 23:04:08,826 INFO L130 PetriNetUnfolder]: For 975842/976105 co-relation queries the response was YES. [2021-12-06 23:04:09,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156366 conditions, 13627 events. 5157/13627 cut-off events. For 975842/976105 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 141267 event pairs, 1412 based on Foata normal form. 120/13623 useless extension candidates. Maximal degree in co-relation 156008. Up to 8822 conditions per place. [2021-12-06 23:04:09,216 INFO L132 encePairwiseOnDemand]: 88/106 looper letters, 1989 selfloop transitions, 356 changer transitions 17/2469 dead transitions. [2021-12-06 23:04:09,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 2469 transitions, 95545 flow [2021-12-06 23:04:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:04:09,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:04:09,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 799 transitions. [2021-12-06 23:04:09,218 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7537735849056604 [2021-12-06 23:04:09,218 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 799 transitions. [2021-12-06 23:04:09,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 799 transitions. [2021-12-06 23:04:09,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:04:09,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 799 transitions. [2021-12-06 23:04:09,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.9) internal successors, (799), 10 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:09,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:09,220 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:09,220 INFO L186 Difference]: Start difference. First operand has 783 places, 2333 transitions, 88891 flow. Second operand 10 states and 799 transitions. [2021-12-06 23:04:09,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 2469 transitions, 95545 flow [2021-12-06 23:04:18,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 2469 transitions, 94245 flow, removed 21 selfloop flow, removed 7 redundant places. [2021-12-06 23:04:18,308 INFO L242 Difference]: Finished difference. Result has 791 places, 2360 transitions, 89226 flow [2021-12-06 23:04:18,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=87601, PETRI_DIFFERENCE_MINUEND_PLACES=776, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=329, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=89226, PETRI_PLACES=791, PETRI_TRANSITIONS=2360} [2021-12-06 23:04:18,310 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 686 predicate places. [2021-12-06 23:04:18,310 INFO L470 AbstractCegarLoop]: Abstraction has has 791 places, 2360 transitions, 89226 flow [2021-12-06 23:04:18,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:18,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:04:18,310 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:04:18,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 23:04:18,310 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:04:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:04:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1046416848, now seen corresponding path program 2 times [2021-12-06 23:04:18,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:04:18,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183982002] [2021-12-06 23:04:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:04:18,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:04:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:04:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:04:19,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:04:19,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183982002] [2021-12-06 23:04:19,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183982002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:04:19,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:04:19,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:04:19,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168356397] [2021-12-06 23:04:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:04:19,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:04:19,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:04:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:04:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:04:19,002 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:04:19,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 791 places, 2360 transitions, 89226 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:19,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:04:19,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:04:19,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:04:32,025 INFO L129 PetriNetUnfolder]: 4440/12268 cut-off events. [2021-12-06 23:04:32,025 INFO L130 PetriNetUnfolder]: For 906855/907150 co-relation queries the response was YES. [2021-12-06 23:04:32,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145543 conditions, 12268 events. 4440/12268 cut-off events. For 906855/907150 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 127838 event pairs, 470 based on Foata normal form. 137/12297 useless extension candidates. Maximal degree in co-relation 145177. Up to 5483 conditions per place. [2021-12-06 23:04:32,369 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2009 selfloop transitions, 696 changer transitions 25/2856 dead transitions. [2021-12-06 23:04:32,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 2856 transitions, 109176 flow [2021-12-06 23:04:32,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:04:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 23:04:32,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 869 transitions. [2021-12-06 23:04:32,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2021-12-06 23:04:32,371 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 869 transitions. [2021-12-06 23:04:32,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 869 transitions. [2021-12-06 23:04:32,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:04:32,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 869 transitions. [2021-12-06 23:04:32,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.0) internal successors, (869), 11 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:32,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:32,372 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:32,373 INFO L186 Difference]: Start difference. First operand has 791 places, 2360 transitions, 89226 flow. Second operand 11 states and 869 transitions. [2021-12-06 23:04:32,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 2856 transitions, 109176 flow [2021-12-06 23:04:40,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 795 places, 2856 transitions, 107293 flow, removed 210 selfloop flow, removed 6 redundant places. [2021-12-06 23:04:40,136 INFO L242 Difference]: Finished difference. Result has 800 places, 2469 transitions, 94942 flow [2021-12-06 23:04:40,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=87704, PETRI_DIFFERENCE_MINUEND_PLACES=785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=587, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=94942, PETRI_PLACES=800, PETRI_TRANSITIONS=2469} [2021-12-06 23:04:40,138 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 695 predicate places. [2021-12-06 23:04:40,139 INFO L470 AbstractCegarLoop]: Abstraction has has 800 places, 2469 transitions, 94942 flow [2021-12-06 23:04:40,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:40,139 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:04:40,139 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:04:40,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 23:04:40,139 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:04:40,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:04:40,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2034176594, now seen corresponding path program 3 times [2021-12-06 23:04:40,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:04:40,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220359628] [2021-12-06 23:04:40,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:04:40,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:04:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:04:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:04:40,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:04:40,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220359628] [2021-12-06 23:04:40,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220359628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:04:40,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:04:40,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:04:40,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656277651] [2021-12-06 23:04:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:04:40,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:04:40,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:04:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:04:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:04:40,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-12-06 23:04:40,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 800 places, 2469 transitions, 94942 flow. Second operand has 10 states, 10 states have (on average 61.8) internal successors, (618), 10 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:40,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:04:40,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-12-06 23:04:40,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:04:55,723 INFO L129 PetriNetUnfolder]: 5281/14470 cut-off events. [2021-12-06 23:04:55,723 INFO L130 PetriNetUnfolder]: For 1035398/1035613 co-relation queries the response was YES. [2021-12-06 23:04:56,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166492 conditions, 14470 events. 5281/14470 cut-off events. For 1035398/1035613 co-relation queries the response was YES. Maximal size of possible extension queue 710. Compared 153002 event pairs, 641 based on Foata normal form. 162/14597 useless extension candidates. Maximal degree in co-relation 166011. Up to 8301 conditions per place. [2021-12-06 23:04:56,155 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 2511 selfloop transitions, 324 changer transitions 29/2986 dead transitions. [2021-12-06 23:04:56,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 2986 transitions, 114433 flow [2021-12-06 23:04:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:04:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:04:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 774 transitions. [2021-12-06 23:04:56,157 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.730188679245283 [2021-12-06 23:04:56,157 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 774 transitions. [2021-12-06 23:04:56,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 774 transitions. [2021-12-06 23:04:56,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:04:56,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 774 transitions. [2021-12-06 23:04:56,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.4) internal successors, (774), 10 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:56,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:56,159 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:04:56,159 INFO L186 Difference]: Start difference. First operand has 800 places, 2469 transitions, 94942 flow. Second operand 10 states and 774 transitions. [2021-12-06 23:04:56,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 808 places, 2986 transitions, 114433 flow [2021-12-06 23:05:05,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 804 places, 2986 transitions, 114223 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-12-06 23:05:05,514 INFO L242 Difference]: Finished difference. Result has 813 places, 2551 transitions, 98757 flow [2021-12-06 23:05:05,515 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=94756, PETRI_DIFFERENCE_MINUEND_PLACES=795, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=98757, PETRI_PLACES=813, PETRI_TRANSITIONS=2551} [2021-12-06 23:05:05,516 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 708 predicate places. [2021-12-06 23:05:05,516 INFO L470 AbstractCegarLoop]: Abstraction has has 813 places, 2551 transitions, 98757 flow [2021-12-06 23:05:05,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.8) internal successors, (618), 10 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:05,516 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:05:05,516 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:05:05,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 23:05:05,516 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:05:05,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:05:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash -990632886, now seen corresponding path program 4 times [2021-12-06 23:05:05,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:05:05,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467907091] [2021-12-06 23:05:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:05:05,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:05:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:05:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:05:05,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:05:05,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467907091] [2021-12-06 23:05:05,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467907091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:05:05,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:05:05,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:05:05,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546458298] [2021-12-06 23:05:05,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:05:05,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:05:05,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:05:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:05:05,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:05:05,824 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-12-06 23:05:05,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 2551 transitions, 98757 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:05,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:05:05,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-12-06 23:05:05,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:05:22,246 INFO L129 PetriNetUnfolder]: 5314/14581 cut-off events. [2021-12-06 23:05:22,246 INFO L130 PetriNetUnfolder]: For 1066678/1066896 co-relation queries the response was YES. [2021-12-06 23:05:22,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169781 conditions, 14581 events. 5314/14581 cut-off events. For 1066678/1066896 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 154314 event pairs, 586 based on Foata normal form. 165/14708 useless extension candidates. Maximal degree in co-relation 169294. Up to 6964 conditions per place. [2021-12-06 23:05:22,697 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2273 selfloop transitions, 418 changer transitions 25/2838 dead transitions. [2021-12-06 23:05:22,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 2838 transitions, 112198 flow [2021-12-06 23:05:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:05:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 23:05:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 854 transitions. [2021-12-06 23:05:22,699 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324185248713551 [2021-12-06 23:05:22,699 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 854 transitions. [2021-12-06 23:05:22,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 854 transitions. [2021-12-06 23:05:22,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:05:22,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 854 transitions. [2021-12-06 23:05:22,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.63636363636364) internal successors, (854), 11 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:22,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:22,701 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:22,701 INFO L186 Difference]: Start difference. First operand has 813 places, 2551 transitions, 98757 flow. Second operand 11 states and 854 transitions. [2021-12-06 23:05:22,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 2838 transitions, 112198 flow [2021-12-06 23:05:32,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 2838 transitions, 111986 flow, removed 43 selfloop flow, removed 2 redundant places. [2021-12-06 23:05:32,279 INFO L242 Difference]: Finished difference. Result has 826 places, 2571 transitions, 100094 flow [2021-12-06 23:05:32,281 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=98545, PETRI_DIFFERENCE_MINUEND_PLACES=811, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=100094, PETRI_PLACES=826, PETRI_TRANSITIONS=2571} [2021-12-06 23:05:32,281 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 721 predicate places. [2021-12-06 23:05:32,281 INFO L470 AbstractCegarLoop]: Abstraction has has 826 places, 2571 transitions, 100094 flow [2021-12-06 23:05:32,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:32,281 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:05:32,281 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:05:32,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 23:05:32,281 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:05:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:05:32,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1316811755, now seen corresponding path program 22 times [2021-12-06 23:05:32,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:05:32,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950431288] [2021-12-06 23:05:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:05:32,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:05:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:05:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:05:33,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:05:33,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950431288] [2021-12-06 23:05:33,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950431288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:05:33,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:05:33,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:05:33,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933809915] [2021-12-06 23:05:33,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:05:33,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:05:33,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:05:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:05:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:05:33,025 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:05:33,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 2571 transitions, 100094 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:33,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:05:33,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:05:33,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:05:48,930 INFO L129 PetriNetUnfolder]: 5121/14256 cut-off events. [2021-12-06 23:05:48,930 INFO L130 PetriNetUnfolder]: For 1076499/1076860 co-relation queries the response was YES. [2021-12-06 23:05:49,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169331 conditions, 14256 events. 5121/14256 cut-off events. For 1076499/1076860 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 152711 event pairs, 631 based on Foata normal form. 220/14382 useless extension candidates. Maximal degree in co-relation 168942. Up to 6253 conditions per place. [2021-12-06 23:05:49,374 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1974 selfloop transitions, 749 changer transitions 8/2858 dead transitions. [2021-12-06 23:05:49,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 839 places, 2858 transitions, 111548 flow [2021-12-06 23:05:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 23:05:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 23:05:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1095 transitions. [2021-12-06 23:05:49,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7378706199460916 [2021-12-06 23:05:49,376 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1095 transitions. [2021-12-06 23:05:49,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1095 transitions. [2021-12-06 23:05:49,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:05:49,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1095 transitions. [2021-12-06 23:05:49,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.21428571428571) internal successors, (1095), 14 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:49,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:49,378 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:49,378 INFO L186 Difference]: Start difference. First operand has 826 places, 2571 transitions, 100094 flow. Second operand 14 states and 1095 transitions. [2021-12-06 23:05:49,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 839 places, 2858 transitions, 111548 flow [2021-12-06 23:05:59,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 836 places, 2858 transitions, 111157 flow, removed 104 selfloop flow, removed 3 redundant places. [2021-12-06 23:05:59,596 INFO L242 Difference]: Finished difference. Result has 843 places, 2635 transitions, 103092 flow [2021-12-06 23:05:59,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=99802, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=687, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=103092, PETRI_PLACES=843, PETRI_TRANSITIONS=2635} [2021-12-06 23:05:59,597 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 738 predicate places. [2021-12-06 23:05:59,597 INFO L470 AbstractCegarLoop]: Abstraction has has 843 places, 2635 transitions, 103092 flow [2021-12-06 23:05:59,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:59,597 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:05:59,597 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:05:59,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 23:05:59,598 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:05:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:05:59,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1081505395, now seen corresponding path program 23 times [2021-12-06 23:05:59,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:05:59,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060898564] [2021-12-06 23:05:59,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:05:59,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:05:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:05:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:05:59,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:05:59,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060898564] [2021-12-06 23:05:59,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060898564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:05:59,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:05:59,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:05:59,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615436603] [2021-12-06 23:05:59,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:05:59,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:05:59,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:05:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:05:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:05:59,881 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:05:59,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 2635 transitions, 103092 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:05:59,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:05:59,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:05:59,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:06:16,398 INFO L129 PetriNetUnfolder]: 5121/14249 cut-off events. [2021-12-06 23:06:16,398 INFO L130 PetriNetUnfolder]: For 1123245/1123604 co-relation queries the response was YES. [2021-12-06 23:06:16,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171530 conditions, 14249 events. 5121/14249 cut-off events. For 1123245/1123604 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 152706 event pairs, 617 based on Foata normal form. 217/14369 useless extension candidates. Maximal degree in co-relation 171050. Up to 6253 conditions per place. [2021-12-06 23:06:16,835 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 1940 selfloop transitions, 729 changer transitions 10/2806 dead transitions. [2021-12-06 23:06:16,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 2806 transitions, 111781 flow [2021-12-06 23:06:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:06:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 23:06:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 940 transitions. [2021-12-06 23:06:16,837 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2021-12-06 23:06:16,837 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 940 transitions. [2021-12-06 23:06:16,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 940 transitions. [2021-12-06 23:06:16,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:06:16,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 940 transitions. [2021-12-06 23:06:16,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.33333333333333) internal successors, (940), 12 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:16,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:16,839 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:16,839 INFO L186 Difference]: Start difference. First operand has 843 places, 2635 transitions, 103092 flow. Second operand 12 states and 940 transitions. [2021-12-06 23:06:16,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 854 places, 2806 transitions, 111781 flow [2021-12-06 23:06:27,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 852 places, 2806 transitions, 111332 flow, removed 144 selfloop flow, removed 2 redundant places. [2021-12-06 23:06:27,453 INFO L242 Difference]: Finished difference. Result has 856 places, 2646 transitions, 104509 flow [2021-12-06 23:06:27,454 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=102677, PETRI_DIFFERENCE_MINUEND_PLACES=841, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=719, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=104509, PETRI_PLACES=856, PETRI_TRANSITIONS=2646} [2021-12-06 23:06:27,454 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 751 predicate places. [2021-12-06 23:06:27,454 INFO L470 AbstractCegarLoop]: Abstraction has has 856 places, 2646 transitions, 104509 flow [2021-12-06 23:06:27,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:27,454 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:06:27,455 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:06:27,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 23:06:27,455 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:06:27,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:06:27,455 INFO L85 PathProgramCache]: Analyzing trace with hash 32418937, now seen corresponding path program 2 times [2021-12-06 23:06:27,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:06:27,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892739396] [2021-12-06 23:06:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:06:27,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:06:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:06:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:06:27,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:06:27,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892739396] [2021-12-06 23:06:27,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892739396] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:06:27,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:06:27,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:06:27,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757252250] [2021-12-06 23:06:27,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:06:27,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:06:27,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:06:27,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:06:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:06:27,686 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 23:06:27,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 2646 transitions, 104509 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:27,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:06:27,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 23:06:27,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:06:45,648 INFO L129 PetriNetUnfolder]: 5732/15261 cut-off events. [2021-12-06 23:06:45,649 INFO L130 PetriNetUnfolder]: For 1246508/1246846 co-relation queries the response was YES. [2021-12-06 23:06:46,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183113 conditions, 15261 events. 5732/15261 cut-off events. For 1246508/1246846 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 161369 event pairs, 1258 based on Foata normal form. 223/15355 useless extension candidates. Maximal degree in co-relation 182710. Up to 8181 conditions per place. [2021-12-06 23:06:46,173 INFO L132 encePairwiseOnDemand]: 86/106 looper letters, 2375 selfloop transitions, 302 changer transitions 105/2905 dead transitions. [2021-12-06 23:06:46,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 2905 transitions, 118902 flow [2021-12-06 23:06:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:06:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:06:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 804 transitions. [2021-12-06 23:06:46,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7584905660377359 [2021-12-06 23:06:46,175 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 804 transitions. [2021-12-06 23:06:46,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 804 transitions. [2021-12-06 23:06:46,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:06:46,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 804 transitions. [2021-12-06 23:06:46,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.4) internal successors, (804), 10 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:46,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:46,178 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:46,178 INFO L186 Difference]: Start difference. First operand has 856 places, 2646 transitions, 104509 flow. Second operand 10 states and 804 transitions. [2021-12-06 23:06:46,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 865 places, 2905 transitions, 118902 flow [2021-12-06 23:06:57,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 859 places, 2905 transitions, 117467 flow, removed 37 selfloop flow, removed 6 redundant places. [2021-12-06 23:06:57,415 INFO L242 Difference]: Finished difference. Result has 865 places, 2701 transitions, 105377 flow [2021-12-06 23:06:57,416 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=103142, PETRI_DIFFERENCE_MINUEND_PLACES=850, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=105377, PETRI_PLACES=865, PETRI_TRANSITIONS=2701} [2021-12-06 23:06:57,416 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 760 predicate places. [2021-12-06 23:06:57,416 INFO L470 AbstractCegarLoop]: Abstraction has has 865 places, 2701 transitions, 105377 flow [2021-12-06 23:06:57,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:57,417 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:06:57,417 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:06:57,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 23:06:57,417 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:06:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:06:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash -871243197, now seen corresponding path program 19 times [2021-12-06 23:06:57,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:06:57,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988298346] [2021-12-06 23:06:57,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:06:57,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:06:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:06:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:06:57,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:06:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988298346] [2021-12-06 23:06:57,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988298346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:06:57,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:06:57,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:06:57,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021347344] [2021-12-06 23:06:57,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:06:57,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:06:57,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:06:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:06:57,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:06:57,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2021-12-06 23:06:57,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 865 places, 2701 transitions, 105377 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:06:57,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:06:57,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2021-12-06 23:06:57,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:07:16,477 INFO L129 PetriNetUnfolder]: 5959/15957 cut-off events. [2021-12-06 23:07:16,477 INFO L130 PetriNetUnfolder]: For 1194463/1194787 co-relation queries the response was YES. [2021-12-06 23:07:16,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188623 conditions, 15957 events. 5959/15957 cut-off events. For 1194463/1194787 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 170236 event pairs, 1522 based on Foata normal form. 149/15981 useless extension candidates. Maximal degree in co-relation 188214. Up to 9705 conditions per place. [2021-12-06 23:07:17,036 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1292 selfloop transitions, 1384 changer transitions 23/2807 dead transitions. [2021-12-06 23:07:17,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 874 places, 2807 transitions, 112645 flow [2021-12-06 23:07:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:07:17,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:07:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 778 transitions. [2021-12-06 23:07:17,038 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7339622641509433 [2021-12-06 23:07:17,038 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 778 transitions. [2021-12-06 23:07:17,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 778 transitions. [2021-12-06 23:07:17,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:07:17,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 778 transitions. [2021-12-06 23:07:17,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.8) internal successors, (778), 10 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:17,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:17,040 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:17,040 INFO L186 Difference]: Start difference. First operand has 865 places, 2701 transitions, 105377 flow. Second operand 10 states and 778 transitions. [2021-12-06 23:07:17,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 874 places, 2807 transitions, 112645 flow [2021-12-06 23:07:28,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 871 places, 2807 transitions, 111905 flow, removed 159 selfloop flow, removed 3 redundant places. [2021-12-06 23:07:28,969 INFO L242 Difference]: Finished difference. Result has 876 places, 2716 transitions, 109015 flow [2021-12-06 23:07:28,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=104645, PETRI_DIFFERENCE_MINUEND_PLACES=862, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=109015, PETRI_PLACES=876, PETRI_TRANSITIONS=2716} [2021-12-06 23:07:28,971 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 771 predicate places. [2021-12-06 23:07:28,971 INFO L470 AbstractCegarLoop]: Abstraction has has 876 places, 2716 transitions, 109015 flow [2021-12-06 23:07:28,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:28,971 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:07:28,971 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:07:28,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 23:07:28,971 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:07:28,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:07:28,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1974441035, now seen corresponding path program 24 times [2021-12-06 23:07:28,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:07:28,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225107434] [2021-12-06 23:07:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:07:28,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:07:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:07:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:07:29,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:07:29,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225107434] [2021-12-06 23:07:29,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225107434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:07:29,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:07:29,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 23:07:29,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046690283] [2021-12-06 23:07:29,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:07:29,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 23:07:29,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:07:29,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 23:07:29,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:07:29,801 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:07:29,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 876 places, 2716 transitions, 109015 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:29,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:07:29,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:07:29,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:07:47,515 INFO L129 PetriNetUnfolder]: 5207/14643 cut-off events. [2021-12-06 23:07:47,516 INFO L130 PetriNetUnfolder]: For 1215506/1215873 co-relation queries the response was YES. [2021-12-06 23:07:47,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180451 conditions, 14643 events. 5207/14643 cut-off events. For 1215506/1215873 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 158476 event pairs, 572 based on Foata normal form. 222/14767 useless extension candidates. Maximal degree in co-relation 180036. Up to 6378 conditions per place. [2021-12-06 23:07:48,076 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 1811 selfloop transitions, 1077 changer transitions 16/3031 dead transitions. [2021-12-06 23:07:48,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 889 places, 3031 transitions, 122893 flow [2021-12-06 23:07:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 23:07:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 23:07:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1091 transitions. [2021-12-06 23:07:48,078 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7351752021563343 [2021-12-06 23:07:48,078 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1091 transitions. [2021-12-06 23:07:48,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1091 transitions. [2021-12-06 23:07:48,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:07:48,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1091 transitions. [2021-12-06 23:07:48,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.92857142857143) internal successors, (1091), 14 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:48,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:48,080 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:48,081 INFO L186 Difference]: Start difference. First operand has 876 places, 2716 transitions, 109015 flow. Second operand 14 states and 1091 transitions. [2021-12-06 23:07:48,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 889 places, 3031 transitions, 122893 flow [2021-12-06 23:07:59,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 887 places, 3031 transitions, 122726 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-12-06 23:07:59,718 INFO L242 Difference]: Finished difference. Result has 896 places, 2800 transitions, 115919 flow [2021-12-06 23:07:59,719 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=108859, PETRI_DIFFERENCE_MINUEND_PLACES=874, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2716, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=996, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=115919, PETRI_PLACES=896, PETRI_TRANSITIONS=2800} [2021-12-06 23:07:59,719 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 791 predicate places. [2021-12-06 23:07:59,720 INFO L470 AbstractCegarLoop]: Abstraction has has 896 places, 2800 transitions, 115919 flow [2021-12-06 23:07:59,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:07:59,720 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:07:59,720 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:07:59,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 23:07:59,720 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:07:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:07:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1377508562, now seen corresponding path program 5 times [2021-12-06 23:07:59,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:07:59,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969836475] [2021-12-06 23:07:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:07:59,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:07:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:08:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:08:00,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:08:00,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969836475] [2021-12-06 23:08:00,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969836475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:08:00,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:08:00,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:08:00,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661247528] [2021-12-06 23:08:00,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:08:00,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:08:00,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:08:00,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:08:00,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:08:00,313 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:08:00,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 896 places, 2800 transitions, 115919 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:00,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:08:00,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:08:00,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:08:19,278 INFO L129 PetriNetUnfolder]: 5370/15029 cut-off events. [2021-12-06 23:08:19,278 INFO L130 PetriNetUnfolder]: For 1322682/1323015 co-relation queries the response was YES. [2021-12-06 23:08:19,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189061 conditions, 15029 events. 5370/15029 cut-off events. For 1322682/1323015 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 162997 event pairs, 586 based on Foata normal form. 173/15081 useless extension candidates. Maximal degree in co-relation 188549. Up to 6555 conditions per place. [2021-12-06 23:08:19,804 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 2543 selfloop transitions, 474 changer transitions 21/3165 dead transitions. [2021-12-06 23:08:19,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 905 places, 3165 transitions, 132134 flow [2021-12-06 23:08:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:08:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:08:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2021-12-06 23:08:19,806 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7594339622641509 [2021-12-06 23:08:19,806 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2021-12-06 23:08:19,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2021-12-06 23:08:19,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:08:19,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2021-12-06 23:08:19,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:19,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:19,808 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:19,808 INFO L186 Difference]: Start difference. First operand has 896 places, 2800 transitions, 115919 flow. Second operand 10 states and 805 transitions. [2021-12-06 23:08:19,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 905 places, 3165 transitions, 132134 flow [2021-12-06 23:08:31,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 901 places, 3165 transitions, 131680 flow, removed 142 selfloop flow, removed 4 redundant places. [2021-12-06 23:08:32,054 INFO L242 Difference]: Finished difference. Result has 907 places, 2865 transitions, 119306 flow [2021-12-06 23:08:32,056 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=115586, PETRI_DIFFERENCE_MINUEND_PLACES=892, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=119306, PETRI_PLACES=907, PETRI_TRANSITIONS=2865} [2021-12-06 23:08:32,056 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 802 predicate places. [2021-12-06 23:08:32,056 INFO L470 AbstractCegarLoop]: Abstraction has has 907 places, 2865 transitions, 119306 flow [2021-12-06 23:08:32,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:32,056 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:08:32,056 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:08:32,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-06 23:08:32,057 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:08:32,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:08:32,057 INFO L85 PathProgramCache]: Analyzing trace with hash 216142364, now seen corresponding path program 6 times [2021-12-06 23:08:32,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:08:32,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442668455] [2021-12-06 23:08:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:08:32,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:08:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:08:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:08:32,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:08:32,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442668455] [2021-12-06 23:08:32,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442668455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:08:32,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:08:32,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:08:32,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345399948] [2021-12-06 23:08:32,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:08:32,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:08:32,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:08:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:08:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:08:32,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2021-12-06 23:08:32,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 907 places, 2865 transitions, 119306 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:32,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:08:32,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2021-12-06 23:08:32,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:08:52,379 INFO L129 PetriNetUnfolder]: 5474/15353 cut-off events. [2021-12-06 23:08:52,379 INFO L130 PetriNetUnfolder]: For 1377093/1377436 co-relation queries the response was YES. [2021-12-06 23:08:52,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195166 conditions, 15353 events. 5474/15353 cut-off events. For 1377093/1377436 co-relation queries the response was YES. Maximal size of possible extension queue 801. Compared 167456 event pairs, 575 based on Foata normal form. 179/15414 useless extension candidates. Maximal degree in co-relation 194731. Up to 6598 conditions per place. [2021-12-06 23:08:53,053 INFO L132 encePairwiseOnDemand]: 90/106 looper letters, 2344 selfloop transitions, 798 changer transitions 17/3286 dead transitions. [2021-12-06 23:08:53,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 916 places, 3286 transitions, 137344 flow [2021-12-06 23:08:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:08:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 23:08:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 801 transitions. [2021-12-06 23:08:53,055 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7556603773584906 [2021-12-06 23:08:53,055 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 801 transitions. [2021-12-06 23:08:53,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 801 transitions. [2021-12-06 23:08:53,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:08:53,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 801 transitions. [2021-12-06 23:08:53,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.1) internal successors, (801), 10 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:53,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:53,056 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:08:53,056 INFO L186 Difference]: Start difference. First operand has 907 places, 2865 transitions, 119306 flow. Second operand 10 states and 801 transitions. [2021-12-06 23:08:53,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 916 places, 3286 transitions, 137344 flow [2021-12-06 23:09:06,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 914 places, 3286 transitions, 137198 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-12-06 23:09:06,272 INFO L242 Difference]: Finished difference. Result has 918 places, 2910 transitions, 123104 flow [2021-12-06 23:09:06,273 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=119160, PETRI_DIFFERENCE_MINUEND_PLACES=905, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2865, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=754, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2087, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=123104, PETRI_PLACES=918, PETRI_TRANSITIONS=2910} [2021-12-06 23:09:06,273 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 813 predicate places. [2021-12-06 23:09:06,273 INFO L470 AbstractCegarLoop]: Abstraction has has 918 places, 2910 transitions, 123104 flow [2021-12-06 23:09:06,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:06,274 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:09:06,274 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:09:06,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-06 23:09:06,274 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:09:06,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1177509670, now seen corresponding path program 7 times [2021-12-06 23:09:06,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:06,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068510986] [2021-12-06 23:09:06,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:06,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:09:07,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:09:07,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068510986] [2021-12-06 23:09:07,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068510986] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:09:07,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:09:07,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:09:07,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211586109] [2021-12-06 23:09:07,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:09:07,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:09:07,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:09:07,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:09:07,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:09:07,052 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2021-12-06 23:09:07,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 918 places, 2910 transitions, 123104 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:07,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:09:07,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2021-12-06 23:09:07,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:09:28,681 INFO L129 PetriNetUnfolder]: 5889/16327 cut-off events. [2021-12-06 23:09:28,681 INFO L130 PetriNetUnfolder]: For 1517586/1517827 co-relation queries the response was YES. [2021-12-06 23:09:29,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208517 conditions, 16327 events. 5889/16327 cut-off events. For 1517586/1517827 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 177500 event pairs, 627 based on Foata normal form. 201/16499 useless extension candidates. Maximal degree in co-relation 207985. Up to 6755 conditions per place. [2021-12-06 23:09:29,289 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2510 selfloop transitions, 751 changer transitions 33/3416 dead transitions. [2021-12-06 23:09:29,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 928 places, 3416 transitions, 145390 flow [2021-12-06 23:09:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:09:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-06 23:09:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 842 transitions. [2021-12-06 23:09:29,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7221269296740995 [2021-12-06 23:09:29,291 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 842 transitions. [2021-12-06 23:09:29,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 842 transitions. [2021-12-06 23:09:29,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:09:29,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 842 transitions. [2021-12-06 23:09:29,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.54545454545455) internal successors, (842), 11 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:29,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:29,292 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:29,293 INFO L186 Difference]: Start difference. First operand has 918 places, 2910 transitions, 123104 flow. Second operand 11 states and 842 transitions. [2021-12-06 23:09:29,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 928 places, 3416 transitions, 145390 flow [2021-12-06 23:09:43,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 3416 transitions, 144642 flow, removed 22 selfloop flow, removed 4 redundant places. [2021-12-06 23:09:43,471 INFO L242 Difference]: Finished difference. Result has 929 places, 2950 transitions, 126383 flow [2021-12-06 23:09:43,473 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=122380, PETRI_DIFFERENCE_MINUEND_PLACES=914, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2910, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=708, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=126383, PETRI_PLACES=929, PETRI_TRANSITIONS=2950} [2021-12-06 23:09:43,473 INFO L334 CegarLoopForPetriNet]: 105 programPoint places, 824 predicate places. [2021-12-06 23:09:43,473 INFO L470 AbstractCegarLoop]: Abstraction has has 929 places, 2950 transitions, 126383 flow [2021-12-06 23:09:43,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:43,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:09:43,473 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:09:43,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-06 23:09:43,473 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-06 23:09:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:09:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 293658819, now seen corresponding path program 3 times [2021-12-06 23:09:43,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:09:43,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995052303] [2021-12-06 23:09:43,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:09:43,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:09:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:09:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-12-06 23:09:43,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:09:43,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995052303] [2021-12-06 23:09:43,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995052303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:09:43,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:09:43,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:09:43,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841798766] [2021-12-06 23:09:43,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:09:43,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 23:09:43,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:09:43,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 23:09:43,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:09:43,841 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 106 [2021-12-06 23:09:43,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 2950 transitions, 126383 flow. Second operand has 11 states, 11 states have (on average 59.63636363636363) internal successors, (656), 11 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:09:43,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:09:43,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 106 [2021-12-06 23:09:43,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand