./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS --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 e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:40:48,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:40:48,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:40:48,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:40:48,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:40:48,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:40:48,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:40:48,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:40:48,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:40:48,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:40:48,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:40:48,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:40:48,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:40:48,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:40:48,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:40:48,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:40:48,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:40:48,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:40:48,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:40:48,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:40:48,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:40:48,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:40:48,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:40:48,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:40:48,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:40:48,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:40:48,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:40:48,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:40:48,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:40:48,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:40:48,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:40:48,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:40:48,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:40:48,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:40:48,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:40:48,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:40:48,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:40:48,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:40:48,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:40:48,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:40:48,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:40:48,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-23 02:40:48,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:40:48,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:40:48,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:40:48,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:40:48,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:40:48,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:40:48,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:40:48,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:40:48,681 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:40:48,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:40:48,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:40:48,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:40:48,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:40:48,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:40:48,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:40:48,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:40:48,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:40:48,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:40:48,684 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 02:40:48,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:40:48,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:40:48,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:40:48,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:40:48,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:40:48,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:40:48,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:40:48,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:40:48,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:40:48,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:40:48,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:40:48,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:40:48,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:40:48,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:40:48,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:40:48,688 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:40:48,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:40:48,688 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-11-23 02:40:49,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:40:49,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:40:49,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:40:49,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:40:49,057 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:40:49,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-23 02:40:52,064 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:40:52,442 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:40:52,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-11-23 02:40:52,473 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/data/2ee14753a/6f8a2533e11046378e912e7722e4c58f/FLAG4c69de929 [2022-11-23 02:40:52,512 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/data/2ee14753a/6f8a2533e11046378e912e7722e4c58f [2022-11-23 02:40:52,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:40:52,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:40:52,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:40:52,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:40:52,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:40:52,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:40:52" (1/1) ... [2022-11-23 02:40:52,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f05b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:52, skipping insertion in model container [2022-11-23 02:40:52,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:40:52" (1/1) ... [2022-11-23 02:40:52,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:40:52,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:40:53,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:40:53,348 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:40:53,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:40:53,471 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:40:53,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53 WrapperNode [2022-11-23 02:40:53,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:40:53,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:40:53,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:40:53,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:40:53,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,552 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2022-11-23 02:40:53,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:40:53,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:40:53,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:40:53,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:40:53,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:40:53,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:40:53,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:40:53,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:40:53,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (1/1) ... [2022-11-23 02:40:53,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:40:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:40:53,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:40:53,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b842ff-873a-41dc-97ad-255ca28f61a4/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:40:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:40:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 02:40:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:40:53,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 02:40:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 02:40:53,667 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 02:40:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:40:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:40:53,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:40:53,669 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:40:53,821 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:40:53,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:40:54,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:40:54,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:40:54,567 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:40:54,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:40:54 BoogieIcfgContainer [2022-11-23 02:40:54,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:40:54,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:40:54,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:40:54,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:40:54,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:40:52" (1/3) ... [2022-11-23 02:40:54,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43801259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:40:54, skipping insertion in model container [2022-11-23 02:40:54,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:40:53" (2/3) ... [2022-11-23 02:40:54,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43801259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:40:54, skipping insertion in model container [2022-11-23 02:40:54,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:40:54" (3/3) ... [2022-11-23 02:40:54,599 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-11-23 02:40:54,615 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:40:54,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:40:54,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-23 02:40:54,625 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:40:54,721 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:40:54,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 248 transitions, 501 flow [2022-11-23 02:40:54,976 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-11-23 02:40:54,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:40:54,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 02:40:54,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 248 transitions, 501 flow [2022-11-23 02:40:54,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 247 transitions, 497 flow [2022-11-23 02:40:55,000 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:40:55,022 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 247 transitions, 497 flow [2022-11-23 02:40:55,025 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 247 transitions, 497 flow [2022-11-23 02:40:55,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 247 transitions, 497 flow [2022-11-23 02:40:55,115 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-11-23 02:40:55,115 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:40:55,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-23 02:40:55,121 INFO L119 LiptonReduction]: Number of co-enabled transitions 4828 [2022-11-23 02:41:30,915 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:41:36,373 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:41:42,322 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:41:47,534 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:42:10,487 WARN L233 SmtUtils]: Spent 22.93s on a formula simplification. DAG size of input: 164 DAG size of output: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:42:18,574 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:42:31,115 WARN L233 SmtUtils]: Spent 12.54s on a formula simplification. DAG size of input: 164 DAG size of output: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:42:48,988 WARN L233 SmtUtils]: Spent 13.89s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:42:57,304 WARN L233 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:43:27,360 WARN L233 SmtUtils]: Spent 23.13s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:43:38,134 WARN L233 SmtUtils]: Spent 10.77s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:43:50,123 WARN L233 SmtUtils]: Spent 11.99s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:43:56,029 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:45:52,911 WARN L233 SmtUtils]: Spent 1.95m on a formula simplification that was a NOOP. DAG size: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:46:08,396 WARN L233 SmtUtils]: Spent 15.48s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:47:40,029 WARN L233 SmtUtils]: Spent 1.53m on a formula simplification that was a NOOP. DAG size: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:48:46,399 WARN L233 SmtUtils]: Spent 1.11m on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 02:48:46,648 INFO L134 LiptonReduction]: Checked pairs total: 60962 [2022-11-23 02:48:46,649 INFO L136 LiptonReduction]: Total number of compositions: 270 [2022-11-23 02:48:46,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:48:46,684 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f072628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:48:46,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-23 02:48:46,688 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 02:48:46,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:48:46,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:46,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 02:48:46,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:48:46,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash 834, now seen corresponding path program 1 times [2022-11-23 02:48:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:46,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111808982] [2022-11-23 02:48:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:46,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111808982] [2022-11-23 02:48:46,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111808982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:46,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:46,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 02:48:46,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599688379] [2022-11-23 02:48:46,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:46,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:48:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:48:46,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:48:46,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 518 [2022-11-23 02:48:46,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 2 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:46,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:46,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 518 [2022-11-23 02:48:46,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:47,323 INFO L130 PetriNetUnfolder]: 105/419 cut-off events. [2022-11-23 02:48:47,323 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:48:47,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 419 events. 105/419 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1938 event pairs, 105 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 649. Up to 235 conditions per place. [2022-11-23 02:48:47,336 INFO L137 encePairwiseOnDemand]: 503/518 looper letters, 24 selfloop transitions, 0 changer transitions 0/56 dead transitions. [2022-11-23 02:48:47,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 163 flow [2022-11-23 02:48:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:48:47,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:48:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 533 transitions. [2022-11-23 02:48:47,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5144787644787645 [2022-11-23 02:48:47,363 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 533 transitions. [2022-11-23 02:48:47,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 533 transitions. [2022-11-23 02:48:47,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:47,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 533 transitions. [2022-11-23 02:48:47,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 518.0) internal successors, (1554), 3 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,391 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 518.0) internal successors, (1554), 3 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,393 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 2 states and 533 transitions. [2022-11-23 02:48:47,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 163 flow [2022-11-23 02:48:47,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:48:47,399 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 114 flow [2022-11-23 02:48:47,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2022-11-23 02:48:47,410 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, -15 predicate places. [2022-11-23 02:48:47,410 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 114 flow [2022-11-23 02:48:47,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:47,416 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:47,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:48:47,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:48:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash 794137908, now seen corresponding path program 1 times [2022-11-23 02:48:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:47,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887819590] [2022-11-23 02:48:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:48,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:48,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887819590] [2022-11-23 02:48:48,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887819590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:48,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:48,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:48:48,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702820121] [2022-11-23 02:48:48,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:48,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:48:48,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:48,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:48:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:48:48,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 518 [2022-11-23 02:48:48,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:48,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:48,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 518 [2022-11-23 02:48:48,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:49,717 INFO L130 PetriNetUnfolder]: 609/1538 cut-off events. [2022-11-23 02:48:49,717 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:48:49,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2852 conditions, 1538 events. 609/1538 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8744 event pairs, 78 based on Foata normal form. 0/1482 useless extension candidates. Maximal degree in co-relation 2849. Up to 646 conditions per place. [2022-11-23 02:48:49,725 INFO L137 encePairwiseOnDemand]: 490/518 looper letters, 128 selfloop transitions, 70 changer transitions 0/208 dead transitions. [2022-11-23 02:48:49,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 208 transitions, 814 flow [2022-11-23 02:48:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:48:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:48:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2022-11-23 02:48:49,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42567567567567566 [2022-11-23 02:48:49,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1323 transitions. [2022-11-23 02:48:49,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1323 transitions. [2022-11-23 02:48:49,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:49,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1323 transitions. [2022-11-23 02:48:49,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.5) internal successors, (1323), 6 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:49,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:49,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:49,743 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 114 flow. Second operand 6 states and 1323 transitions. [2022-11-23 02:48:49,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 208 transitions, 814 flow [2022-11-23 02:48:49,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 208 transitions, 814 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:48:49,750 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 592 flow [2022-11-23 02:48:49,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=592, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2022-11-23 02:48:49,751 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, -6 predicate places. [2022-11-23 02:48:49,751 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 592 flow [2022-11-23 02:48:49,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:49,753 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:49,753 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:49,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:48:49,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:48:49,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1653831706, now seen corresponding path program 1 times [2022-11-23 02:48:49,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:49,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897516525] [2022-11-23 02:48:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:49,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:50,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:50,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897516525] [2022-11-23 02:48:50,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897516525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:50,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:50,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:48:50,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910813328] [2022-11-23 02:48:50,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:50,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:48:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:48:50,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:48:50,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 518 [2022-11-23 02:48:50,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:50,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:50,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 518 [2022-11-23 02:48:50,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:52,282 INFO L130 PetriNetUnfolder]: 850/1980 cut-off events. [2022-11-23 02:48:52,282 INFO L131 PetriNetUnfolder]: For 690/702 co-relation queries the response was YES. [2022-11-23 02:48:52,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5202 conditions, 1980 events. 850/1980 cut-off events. For 690/702 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11032 event pairs, 417 based on Foata normal form. 0/1930 useless extension candidates. Maximal degree in co-relation 5194. Up to 1673 conditions per place. [2022-11-23 02:48:52,297 INFO L137 encePairwiseOnDemand]: 504/518 looper letters, 123 selfloop transitions, 44 changer transitions 0/193 dead transitions. [2022-11-23 02:48:52,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 193 transitions, 1134 flow [2022-11-23 02:48:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:48:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:48:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1244 transitions. [2022-11-23 02:48:52,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40025740025740025 [2022-11-23 02:48:52,301 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1244 transitions. [2022-11-23 02:48:52,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1244 transitions. [2022-11-23 02:48:52,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:52,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1244 transitions. [2022-11-23 02:48:52,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:52,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:52,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:52,313 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 592 flow. Second operand 6 states and 1244 transitions. [2022-11-23 02:48:52,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 193 transitions, 1134 flow [2022-11-23 02:48:52,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 193 transitions, 1134 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:48:52,328 INFO L231 Difference]: Finished difference. Result has 78 places, 165 transitions, 898 flow [2022-11-23 02:48:52,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=78, PETRI_TRANSITIONS=165} [2022-11-23 02:48:52,330 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 3 predicate places. [2022-11-23 02:48:52,330 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 165 transitions, 898 flow [2022-11-23 02:48:52,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:52,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:52,331 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:52,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:48:52,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:48:52,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:52,332 INFO L85 PathProgramCache]: Analyzing trace with hash 631939502, now seen corresponding path program 1 times [2022-11-23 02:48:52,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:52,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708752655] [2022-11-23 02:48:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:52,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:53,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:53,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708752655] [2022-11-23 02:48:53,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708752655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:53,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:53,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:48:53,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057772778] [2022-11-23 02:48:53,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:53,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:48:53,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:53,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:48:53,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:48:54,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 518 [2022-11-23 02:48:54,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 165 transitions, 898 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:54,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:54,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 518 [2022-11-23 02:48:54,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:48:57,816 INFO L130 PetriNetUnfolder]: 852/2071 cut-off events. [2022-11-23 02:48:57,816 INFO L131 PetriNetUnfolder]: For 1318/1326 co-relation queries the response was YES. [2022-11-23 02:48:57,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6189 conditions, 2071 events. 852/2071 cut-off events. For 1318/1326 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 12592 event pairs, 92 based on Foata normal form. 18/2056 useless extension candidates. Maximal degree in co-relation 6176. Up to 605 conditions per place. [2022-11-23 02:48:57,832 INFO L137 encePairwiseOnDemand]: 492/518 looper letters, 231 selfloop transitions, 88 changer transitions 0/345 dead transitions. [2022-11-23 02:48:57,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 345 transitions, 2364 flow [2022-11-23 02:48:57,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 02:48:57,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 02:48:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2239 transitions. [2022-11-23 02:48:57,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39294489294489293 [2022-11-23 02:48:57,839 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2239 transitions. [2022-11-23 02:48:57,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2239 transitions. [2022-11-23 02:48:57,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:48:57,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2239 transitions. [2022-11-23 02:48:57,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.54545454545453) internal successors, (2239), 11 states have internal predecessors, (2239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:57,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:57,858 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:57,859 INFO L175 Difference]: Start difference. First operand has 78 places, 165 transitions, 898 flow. Second operand 11 states and 2239 transitions. [2022-11-23 02:48:57,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 345 transitions, 2364 flow [2022-11-23 02:48:57,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 345 transitions, 2316 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-23 02:48:57,880 INFO L231 Difference]: Finished difference. Result has 93 places, 210 transitions, 1512 flow [2022-11-23 02:48:57,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1512, PETRI_PLACES=93, PETRI_TRANSITIONS=210} [2022-11-23 02:48:57,882 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 18 predicate places. [2022-11-23 02:48:57,882 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 210 transitions, 1512 flow [2022-11-23 02:48:57,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:57,884 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:48:57,884 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:48:57,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:48:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1495163116, now seen corresponding path program 2 times [2022-11-23 02:48:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:57,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412941703] [2022-11-23 02:48:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:57,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:58,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412941703] [2022-11-23 02:48:58,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412941703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:58,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:58,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:48:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768879376] [2022-11-23 02:48:58,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:58,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:48:58,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:58,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:48:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:48:59,742 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:48:59,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 210 transitions, 1512 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:59,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:48:59,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:48:59,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:02,482 INFO L130 PetriNetUnfolder]: 1149/2804 cut-off events. [2022-11-23 02:49:02,482 INFO L131 PetriNetUnfolder]: For 4093/4112 co-relation queries the response was YES. [2022-11-23 02:49:02,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9578 conditions, 2804 events. 1149/2804 cut-off events. For 4093/4112 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 19145 event pairs, 167 based on Foata normal form. 19/2773 useless extension candidates. Maximal degree in co-relation 9559. Up to 958 conditions per place. [2022-11-23 02:49:02,507 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 305 selfloop transitions, 127 changer transitions 2/460 dead transitions. [2022-11-23 02:49:02,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 460 transitions, 3759 flow [2022-11-23 02:49:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 02:49:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 02:49:02,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2502 transitions. [2022-11-23 02:49:02,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4025096525096525 [2022-11-23 02:49:02,515 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2502 transitions. [2022-11-23 02:49:02,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2502 transitions. [2022-11-23 02:49:02,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:02,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2502 transitions. [2022-11-23 02:49:02,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.5) internal successors, (2502), 12 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:02,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 518.0) internal successors, (6734), 13 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:02,531 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 518.0) internal successors, (6734), 13 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:02,531 INFO L175 Difference]: Start difference. First operand has 93 places, 210 transitions, 1512 flow. Second operand 12 states and 2502 transitions. [2022-11-23 02:49:02,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 460 transitions, 3759 flow [2022-11-23 02:49:02,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 460 transitions, 3741 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:49:02,568 INFO L231 Difference]: Finished difference. Result has 112 places, 266 transitions, 2546 flow [2022-11-23 02:49:02,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2546, PETRI_PLACES=112, PETRI_TRANSITIONS=266} [2022-11-23 02:49:02,572 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 37 predicate places. [2022-11-23 02:49:02,572 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 266 transitions, 2546 flow [2022-11-23 02:49:02,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:02,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:02,574 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:02,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:49:02,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1973404465, now seen corresponding path program 1 times [2022-11-23 02:49:02,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:02,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094783462] [2022-11-23 02:49:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:03,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:03,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:03,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094783462] [2022-11-23 02:49:03,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094783462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:03,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:03,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472547781] [2022-11-23 02:49:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:03,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:03,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:05,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 518 [2022-11-23 02:49:05,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 266 transitions, 2546 flow. Second operand has 10 states, 10 states have (on average 187.2) internal successors, (1872), 10 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:05,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:05,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 518 [2022-11-23 02:49:05,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:08,652 INFO L130 PetriNetUnfolder]: 1382/3218 cut-off events. [2022-11-23 02:49:08,653 INFO L131 PetriNetUnfolder]: For 8728/8748 co-relation queries the response was YES. [2022-11-23 02:49:08,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12712 conditions, 3218 events. 1382/3218 cut-off events. For 8728/8748 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 21253 event pairs, 514 based on Foata normal form. 0/3153 useless extension candidates. Maximal degree in co-relation 12684. Up to 2518 conditions per place. [2022-11-23 02:49:08,686 INFO L137 encePairwiseOnDemand]: 505/518 looper letters, 275 selfloop transitions, 63 changer transitions 0/379 dead transitions. [2022-11-23 02:49:08,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 379 transitions, 4048 flow [2022-11-23 02:49:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 02:49:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 02:49:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1814 transitions. [2022-11-23 02:49:08,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3891033891033891 [2022-11-23 02:49:08,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1814 transitions. [2022-11-23 02:49:08,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1814 transitions. [2022-11-23 02:49:08,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:08,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1814 transitions. [2022-11-23 02:49:08,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 201.55555555555554) internal successors, (1814), 9 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:08,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 518.0) internal successors, (5180), 10 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:08,711 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 518.0) internal successors, (5180), 10 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:08,711 INFO L175 Difference]: Start difference. First operand has 112 places, 266 transitions, 2546 flow. Second operand 9 states and 1814 transitions. [2022-11-23 02:49:08,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 379 transitions, 4048 flow [2022-11-23 02:49:08,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 379 transitions, 4042 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-23 02:49:08,826 INFO L231 Difference]: Finished difference. Result has 124 places, 279 transitions, 2847 flow [2022-11-23 02:49:08,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2847, PETRI_PLACES=124, PETRI_TRANSITIONS=279} [2022-11-23 02:49:08,827 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 49 predicate places. [2022-11-23 02:49:08,827 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 279 transitions, 2847 flow [2022-11-23 02:49:08,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 187.2) internal successors, (1872), 10 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:08,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:08,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:08,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 02:49:08,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:08,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:08,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1854442576, now seen corresponding path program 3 times [2022-11-23 02:49:08,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:08,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869113066] [2022-11-23 02:49:08,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:08,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:09,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869113066] [2022-11-23 02:49:09,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869113066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:09,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:09,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:09,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394559806] [2022-11-23 02:49:09,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:09,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:09,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:09,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:10,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:10,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 279 transitions, 2847 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:10,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:10,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:10,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:13,431 INFO L130 PetriNetUnfolder]: 1414/3478 cut-off events. [2022-11-23 02:49:13,431 INFO L131 PetriNetUnfolder]: For 11276/11321 co-relation queries the response was YES. [2022-11-23 02:49:13,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14521 conditions, 3478 events. 1414/3478 cut-off events. For 11276/11321 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 25457 event pairs, 236 based on Foata normal form. 28/3445 useless extension candidates. Maximal degree in co-relation 14488. Up to 949 conditions per place. [2022-11-23 02:49:13,461 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 342 selfloop transitions, 146 changer transitions 2/522 dead transitions. [2022-11-23 02:49:13,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 522 transitions, 5534 flow [2022-11-23 02:49:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 02:49:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 02:49:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2690 transitions. [2022-11-23 02:49:13,470 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39946539946539944 [2022-11-23 02:49:13,470 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2690 transitions. [2022-11-23 02:49:13,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2690 transitions. [2022-11-23 02:49:13,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:13,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2690 transitions. [2022-11-23 02:49:13,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 206.92307692307693) internal successors, (2690), 13 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:13,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 518.0) internal successors, (7252), 14 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:13,490 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 518.0) internal successors, (7252), 14 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:13,490 INFO L175 Difference]: Start difference. First operand has 124 places, 279 transitions, 2847 flow. Second operand 13 states and 2690 transitions. [2022-11-23 02:49:13,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 522 transitions, 5534 flow [2022-11-23 02:49:13,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 522 transitions, 5519 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-11-23 02:49:13,568 INFO L231 Difference]: Finished difference. Result has 145 places, 326 transitions, 4068 flow [2022-11-23 02:49:13,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=2842, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4068, PETRI_PLACES=145, PETRI_TRANSITIONS=326} [2022-11-23 02:49:13,570 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 70 predicate places. [2022-11-23 02:49:13,570 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 326 transitions, 4068 flow [2022-11-23 02:49:13,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:13,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:13,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:13,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 02:49:13,572 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:13,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:13,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1888787364, now seen corresponding path program 4 times [2022-11-23 02:49:13,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:13,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573124730] [2022-11-23 02:49:13,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:13,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:14,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:14,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573124730] [2022-11-23 02:49:14,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573124730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:14,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:14,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:14,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660103180] [2022-11-23 02:49:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:14,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:15,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:15,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 326 transitions, 4068 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:15,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:15,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:15,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:18,737 INFO L130 PetriNetUnfolder]: 2094/5158 cut-off events. [2022-11-23 02:49:18,737 INFO L131 PetriNetUnfolder]: For 24441/24502 co-relation queries the response was YES. [2022-11-23 02:49:18,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23776 conditions, 5158 events. 2094/5158 cut-off events. For 24441/24502 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 41868 event pairs, 173 based on Foata normal form. 53/5134 useless extension candidates. Maximal degree in co-relation 23734. Up to 1483 conditions per place. [2022-11-23 02:49:18,789 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 434 selfloop transitions, 262 changer transitions 3/731 dead transitions. [2022-11-23 02:49:18,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 731 transitions, 9377 flow [2022-11-23 02:49:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 02:49:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-23 02:49:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3257 transitions. [2022-11-23 02:49:18,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39297779922779924 [2022-11-23 02:49:18,799 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3257 transitions. [2022-11-23 02:49:18,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3257 transitions. [2022-11-23 02:49:18,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:18,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3257 transitions. [2022-11-23 02:49:18,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 203.5625) internal successors, (3257), 16 states have internal predecessors, (3257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:18,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 518.0) internal successors, (8806), 17 states have internal predecessors, (8806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:18,821 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 518.0) internal successors, (8806), 17 states have internal predecessors, (8806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:18,822 INFO L175 Difference]: Start difference. First operand has 145 places, 326 transitions, 4068 flow. Second operand 16 states and 3257 transitions. [2022-11-23 02:49:18,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 731 transitions, 9377 flow [2022-11-23 02:49:19,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 731 transitions, 9351 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-23 02:49:19,089 INFO L231 Difference]: Finished difference. Result has 169 places, 455 transitions, 7064 flow [2022-11-23 02:49:19,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=4054, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7064, PETRI_PLACES=169, PETRI_TRANSITIONS=455} [2022-11-23 02:49:19,092 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 94 predicate places. [2022-11-23 02:49:19,092 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 455 transitions, 7064 flow [2022-11-23 02:49:19,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:19,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:19,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:19,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 02:49:19,094 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:19,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1880814764, now seen corresponding path program 5 times [2022-11-23 02:49:19,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:19,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720232090] [2022-11-23 02:49:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:19,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:19,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720232090] [2022-11-23 02:49:19,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720232090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:19,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:19,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886081765] [2022-11-23 02:49:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:19,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:19,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:21,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:21,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 455 transitions, 7064 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:21,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:21,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:21,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:25,273 INFO L130 PetriNetUnfolder]: 2584/6357 cut-off events. [2022-11-23 02:49:25,273 INFO L131 PetriNetUnfolder]: For 47924/48056 co-relation queries the response was YES. [2022-11-23 02:49:25,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32591 conditions, 6357 events. 2584/6357 cut-off events. For 47924/48056 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 54169 event pairs, 499 based on Foata normal form. 95/6354 useless extension candidates. Maximal degree in co-relation 32539. Up to 1962 conditions per place. [2022-11-23 02:49:25,328 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 467 selfloop transitions, 281 changer transitions 2/782 dead transitions. [2022-11-23 02:49:25,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 782 transitions, 11917 flow [2022-11-23 02:49:25,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:49:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 02:49:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2874 transitions. [2022-11-23 02:49:25,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3963044677330392 [2022-11-23 02:49:25,336 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2874 transitions. [2022-11-23 02:49:25,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2874 transitions. [2022-11-23 02:49:25,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:25,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2874 transitions. [2022-11-23 02:49:25,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 205.28571428571428) internal successors, (2874), 14 states have internal predecessors, (2874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:25,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:25,355 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:25,355 INFO L175 Difference]: Start difference. First operand has 169 places, 455 transitions, 7064 flow. Second operand 14 states and 2874 transitions. [2022-11-23 02:49:25,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 782 transitions, 11917 flow [2022-11-23 02:49:25,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 782 transitions, 11806 flow, removed 52 selfloop flow, removed 1 redundant places. [2022-11-23 02:49:25,871 INFO L231 Difference]: Finished difference. Result has 193 places, 548 transitions, 9786 flow [2022-11-23 02:49:25,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=6983, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9786, PETRI_PLACES=193, PETRI_TRANSITIONS=548} [2022-11-23 02:49:25,872 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 118 predicate places. [2022-11-23 02:49:25,872 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 548 transitions, 9786 flow [2022-11-23 02:49:25,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:25,873 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:25,873 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:25,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 02:49:25,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:25,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1504701924, now seen corresponding path program 6 times [2022-11-23 02:49:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:25,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858980783] [2022-11-23 02:49:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:25,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:26,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:26,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858980783] [2022-11-23 02:49:26,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858980783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:26,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:26,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:26,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097910218] [2022-11-23 02:49:26,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:26,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:26,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:26,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:27,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:27,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 548 transitions, 9786 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:27,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:27,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:27,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:32,388 INFO L130 PetriNetUnfolder]: 2900/7115 cut-off events. [2022-11-23 02:49:32,388 INFO L131 PetriNetUnfolder]: For 71850/72000 co-relation queries the response was YES. [2022-11-23 02:49:32,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39633 conditions, 7115 events. 2900/7115 cut-off events. For 71850/72000 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 62177 event pairs, 290 based on Foata normal form. 116/7125 useless extension candidates. Maximal degree in co-relation 39569. Up to 2352 conditions per place. [2022-11-23 02:49:32,451 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 439 selfloop transitions, 392 changer transitions 3/866 dead transitions. [2022-11-23 02:49:32,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 866 transitions, 14680 flow [2022-11-23 02:49:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 02:49:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-23 02:49:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3654 transitions. [2022-11-23 02:49:32,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3918918918918919 [2022-11-23 02:49:32,461 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3654 transitions. [2022-11-23 02:49:32,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3654 transitions. [2022-11-23 02:49:32,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:32,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3654 transitions. [2022-11-23 02:49:32,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 203.0) internal successors, (3654), 18 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:32,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 518.0) internal successors, (9842), 19 states have internal predecessors, (9842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:32,483 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 518.0) internal successors, (9842), 19 states have internal predecessors, (9842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:32,483 INFO L175 Difference]: Start difference. First operand has 193 places, 548 transitions, 9786 flow. Second operand 18 states and 3654 transitions. [2022-11-23 02:49:32,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 866 transitions, 14680 flow [2022-11-23 02:49:33,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 866 transitions, 14628 flow, removed 26 selfloop flow, removed 0 redundant places. [2022-11-23 02:49:33,223 INFO L231 Difference]: Finished difference. Result has 222 places, 628 transitions, 12993 flow [2022-11-23 02:49:33,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=9746, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12993, PETRI_PLACES=222, PETRI_TRANSITIONS=628} [2022-11-23 02:49:33,225 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 147 predicate places. [2022-11-23 02:49:33,225 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 628 transitions, 12993 flow [2022-11-23 02:49:33,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:33,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:33,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:33,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 02:49:33,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:33,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:33,227 INFO L85 PathProgramCache]: Analyzing trace with hash -100204556, now seen corresponding path program 7 times [2022-11-23 02:49:33,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:33,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584064911] [2022-11-23 02:49:33,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:33,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:33,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:33,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584064911] [2022-11-23 02:49:33,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584064911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:33,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:33,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:33,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80422573] [2022-11-23 02:49:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:33,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:33,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:33,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:33,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:34,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:34,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 628 transitions, 12993 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:34,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:34,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:34,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:39,757 INFO L130 PetriNetUnfolder]: 3379/8317 cut-off events. [2022-11-23 02:49:39,757 INFO L131 PetriNetUnfolder]: For 115689/115793 co-relation queries the response was YES. [2022-11-23 02:49:39,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50558 conditions, 8317 events. 3379/8317 cut-off events. For 115689/115793 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 75485 event pairs, 803 based on Foata normal form. 73/8262 useless extension candidates. Maximal degree in co-relation 50481. Up to 2651 conditions per place. [2022-11-23 02:49:39,889 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 575 selfloop transitions, 357 changer transitions 2/966 dead transitions. [2022-11-23 02:49:39,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 966 transitions, 19326 flow [2022-11-23 02:49:39,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:49:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 02:49:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2859 transitions. [2022-11-23 02:49:39,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3942360728075014 [2022-11-23 02:49:39,897 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2859 transitions. [2022-11-23 02:49:39,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2859 transitions. [2022-11-23 02:49:39,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:39,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2859 transitions. [2022-11-23 02:49:39,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 204.21428571428572) internal successors, (2859), 14 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:39,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:39,917 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:39,917 INFO L175 Difference]: Start difference. First operand has 222 places, 628 transitions, 12993 flow. Second operand 14 states and 2859 transitions. [2022-11-23 02:49:39,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 966 transitions, 19326 flow [2022-11-23 02:49:41,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 966 transitions, 19248 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-11-23 02:49:41,168 INFO L231 Difference]: Finished difference. Result has 243 places, 717 transitions, 16543 flow [2022-11-23 02:49:41,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=12936, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16543, PETRI_PLACES=243, PETRI_TRANSITIONS=717} [2022-11-23 02:49:41,169 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 168 predicate places. [2022-11-23 02:49:41,169 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 717 transitions, 16543 flow [2022-11-23 02:49:41,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:41,170 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:41,170 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:41,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 02:49:41,170 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:41,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1770139734, now seen corresponding path program 8 times [2022-11-23 02:49:41,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:41,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820434622] [2022-11-23 02:49:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:41,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:41,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820434622] [2022-11-23 02:49:41,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820434622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:41,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:41,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:41,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190926131] [2022-11-23 02:49:41,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:41,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:41,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:41,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:42,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:49:42,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 717 transitions, 16543 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:42,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:42,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:49:42,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:48,582 INFO L130 PetriNetUnfolder]: 3637/8971 cut-off events. [2022-11-23 02:49:48,582 INFO L131 PetriNetUnfolder]: For 153632/153736 co-relation queries the response was YES. [2022-11-23 02:49:48,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57790 conditions, 8971 events. 3637/8971 cut-off events. For 153632/153736 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 83242 event pairs, 463 based on Foata normal form. 67/8905 useless extension candidates. Maximal degree in co-relation 57702. Up to 2641 conditions per place. [2022-11-23 02:49:48,733 INFO L137 encePairwiseOnDemand]: 486/518 looper letters, 538 selfloop transitions, 458 changer transitions 3/1031 dead transitions. [2022-11-23 02:49:48,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 1031 transitions, 22188 flow [2022-11-23 02:49:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 02:49:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-23 02:49:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3455 transitions. [2022-11-23 02:49:48,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3923461276402453 [2022-11-23 02:49:48,739 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3455 transitions. [2022-11-23 02:49:48,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3455 transitions. [2022-11-23 02:49:48,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:48,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3455 transitions. [2022-11-23 02:49:48,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 203.23529411764707) internal successors, (3455), 17 states have internal predecessors, (3455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:48,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 518.0) internal successors, (9324), 18 states have internal predecessors, (9324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:48,755 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 518.0) internal successors, (9324), 18 states have internal predecessors, (9324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:48,756 INFO L175 Difference]: Start difference. First operand has 243 places, 717 transitions, 16543 flow. Second operand 17 states and 3455 transitions. [2022-11-23 02:49:48,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 1031 transitions, 22188 flow [2022-11-23 02:49:50,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1031 transitions, 22108 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-23 02:49:50,735 INFO L231 Difference]: Finished difference. Result has 270 places, 781 transitions, 19990 flow [2022-11-23 02:49:50,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=16473, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19990, PETRI_PLACES=270, PETRI_TRANSITIONS=781} [2022-11-23 02:49:50,737 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 195 predicate places. [2022-11-23 02:49:50,737 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 781 transitions, 19990 flow [2022-11-23 02:49:50,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:50,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:49:50,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:49:50,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 02:49:50,738 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:49:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:49:50,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1865916916, now seen corresponding path program 9 times [2022-11-23 02:49:50,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:49:50,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229668729] [2022-11-23 02:49:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:49:50,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:49:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:49:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:49:51,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:49:51,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229668729] [2022-11-23 02:49:51,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229668729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:49:51,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:49:51,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:49:51,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272773601] [2022-11-23 02:49:51,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:49:51,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:49:51,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:49:51,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:49:51,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:49:52,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 518 [2022-11-23 02:49:52,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 781 transitions, 19990 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:52,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:49:52,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 518 [2022-11-23 02:49:52,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:49:58,749 INFO L130 PetriNetUnfolder]: 3763/9280 cut-off events. [2022-11-23 02:49:58,749 INFO L131 PetriNetUnfolder]: For 197241/197351 co-relation queries the response was YES. [2022-11-23 02:49:58,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63599 conditions, 9280 events. 3763/9280 cut-off events. For 197241/197351 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 86539 event pairs, 672 based on Foata normal form. 46/9191 useless extension candidates. Maximal degree in co-relation 63499. Up to 3967 conditions per place. [2022-11-23 02:49:58,945 INFO L137 encePairwiseOnDemand]: 488/518 looper letters, 439 selfloop transitions, 470 changer transitions 0/941 dead transitions. [2022-11-23 02:49:58,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 941 transitions, 23720 flow [2022-11-23 02:49:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 02:49:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 02:49:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2251 transitions. [2022-11-23 02:49:58,948 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.395050895050895 [2022-11-23 02:49:58,948 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2251 transitions. [2022-11-23 02:49:58,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2251 transitions. [2022-11-23 02:49:58,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:49:58,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2251 transitions. [2022-11-23 02:49:58,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 204.63636363636363) internal successors, (2251), 11 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:58,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:58,957 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:49:58,957 INFO L175 Difference]: Start difference. First operand has 270 places, 781 transitions, 19990 flow. Second operand 11 states and 2251 transitions. [2022-11-23 02:49:58,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 941 transitions, 23720 flow [2022-11-23 02:50:01,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 941 transitions, 23644 flow, removed 29 selfloop flow, removed 4 redundant places. [2022-11-23 02:50:01,268 INFO L231 Difference]: Finished difference. Result has 281 places, 808 transitions, 22239 flow [2022-11-23 02:50:01,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=19926, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=444, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22239, PETRI_PLACES=281, PETRI_TRANSITIONS=808} [2022-11-23 02:50:01,270 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 206 predicate places. [2022-11-23 02:50:01,270 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 808 transitions, 22239 flow [2022-11-23 02:50:01,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:01,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:50:01,271 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:50:01,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 02:50:01,271 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:50:01,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:50:01,271 INFO L85 PathProgramCache]: Analyzing trace with hash -736244754, now seen corresponding path program 10 times [2022-11-23 02:50:01,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:50:01,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456586883] [2022-11-23 02:50:01,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:50:01,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:50:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:50:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:50:02,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:50:02,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456586883] [2022-11-23 02:50:02,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456586883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:50:02,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:50:02,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:50:02,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528568577] [2022-11-23 02:50:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:50:02,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:50:02,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:50:02,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:50:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:50:02,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 518 [2022-11-23 02:50:02,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 808 transitions, 22239 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:02,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:50:02,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 518 [2022-11-23 02:50:02,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:50:09,093 INFO L130 PetriNetUnfolder]: 3879/9597 cut-off events. [2022-11-23 02:50:09,093 INFO L131 PetriNetUnfolder]: For 235911/236027 co-relation queries the response was YES. [2022-11-23 02:50:09,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68810 conditions, 9597 events. 3879/9597 cut-off events. For 235911/236027 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 90297 event pairs, 588 based on Foata normal form. 58/9530 useless extension candidates. Maximal degree in co-relation 68705. Up to 4096 conditions per place. [2022-11-23 02:50:09,270 INFO L137 encePairwiseOnDemand]: 490/518 looper letters, 467 selfloop transitions, 466 changer transitions 0/965 dead transitions. [2022-11-23 02:50:09,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 965 transitions, 26703 flow [2022-11-23 02:50:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 02:50:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 02:50:09,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2195 transitions. [2022-11-23 02:50:09,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3852228852228852 [2022-11-23 02:50:09,274 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2195 transitions. [2022-11-23 02:50:09,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2195 transitions. [2022-11-23 02:50:09,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:50:09,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2195 transitions. [2022-11-23 02:50:09,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 199.54545454545453) internal successors, (2195), 11 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:09,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:09,284 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 518.0) internal successors, (6216), 12 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:09,284 INFO L175 Difference]: Start difference. First operand has 281 places, 808 transitions, 22239 flow. Second operand 11 states and 2195 transitions. [2022-11-23 02:50:09,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 965 transitions, 26703 flow [2022-11-23 02:50:11,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 965 transitions, 26323 flow, removed 32 selfloop flow, removed 4 redundant places. [2022-11-23 02:50:11,870 INFO L231 Difference]: Finished difference. Result has 295 places, 849 transitions, 24658 flow [2022-11-23 02:50:11,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=21874, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=427, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=24658, PETRI_PLACES=295, PETRI_TRANSITIONS=849} [2022-11-23 02:50:11,871 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 220 predicate places. [2022-11-23 02:50:11,871 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 849 transitions, 24658 flow [2022-11-23 02:50:11,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:11,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:50:11,872 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:50:11,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 02:50:11,872 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:50:11,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:50:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1013156904, now seen corresponding path program 11 times [2022-11-23 02:50:11,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:50:11,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664761089] [2022-11-23 02:50:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:50:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:50:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:50:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:50:12,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:50:12,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664761089] [2022-11-23 02:50:12,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664761089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:50:12,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:50:12,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:50:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041327229] [2022-11-23 02:50:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:50:12,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:50:12,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:50:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:50:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:50:13,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:50:13,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 849 transitions, 24658 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:13,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:50:13,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:50:13,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:50:20,136 INFO L130 PetriNetUnfolder]: 4150/10251 cut-off events. [2022-11-23 02:50:20,136 INFO L131 PetriNetUnfolder]: For 289574/289793 co-relation queries the response was YES. [2022-11-23 02:50:20,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75840 conditions, 10251 events. 4150/10251 cut-off events. For 289574/289793 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 97796 event pairs, 607 based on Foata normal form. 136/10244 useless extension candidates. Maximal degree in co-relation 75727. Up to 3525 conditions per place. [2022-11-23 02:50:20,379 INFO L137 encePairwiseOnDemand]: 489/518 looper letters, 503 selfloop transitions, 531 changer transitions 2/1068 dead transitions. [2022-11-23 02:50:20,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1068 transitions, 30083 flow [2022-11-23 02:50:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 02:50:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 02:50:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2623 transitions. [2022-11-23 02:50:20,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3895158895158895 [2022-11-23 02:50:20,384 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2623 transitions. [2022-11-23 02:50:20,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2623 transitions. [2022-11-23 02:50:20,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:50:20,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2623 transitions. [2022-11-23 02:50:20,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 201.76923076923077) internal successors, (2623), 13 states have internal predecessors, (2623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:20,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 518.0) internal successors, (7252), 14 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:20,395 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 518.0) internal successors, (7252), 14 states have internal predecessors, (7252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:20,396 INFO L175 Difference]: Start difference. First operand has 295 places, 849 transitions, 24658 flow. Second operand 13 states and 2623 transitions. [2022-11-23 02:50:20,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1068 transitions, 30083 flow [2022-11-23 02:50:23,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1068 transitions, 29860 flow, removed 111 selfloop flow, removed 1 redundant places. [2022-11-23 02:50:23,800 INFO L231 Difference]: Finished difference. Result has 316 places, 895 transitions, 28283 flow [2022-11-23 02:50:23,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=24451, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=485, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28283, PETRI_PLACES=316, PETRI_TRANSITIONS=895} [2022-11-23 02:50:23,801 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 241 predicate places. [2022-11-23 02:50:23,801 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 895 transitions, 28283 flow [2022-11-23 02:50:23,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:23,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:50:23,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:50:23,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 02:50:23,802 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:50:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:50:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1001682564, now seen corresponding path program 12 times [2022-11-23 02:50:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:50:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938980736] [2022-11-23 02:50:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:50:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:50:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:50:24,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:50:24,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:50:24,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938980736] [2022-11-23 02:50:24,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938980736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:50:24,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:50:24,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:50:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024575502] [2022-11-23 02:50:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:50:24,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:50:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:50:24,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:50:24,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:50:25,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:50:25,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 895 transitions, 28283 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:25,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:50:25,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:50:25,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:50:34,983 INFO L130 PetriNetUnfolder]: 4429/10947 cut-off events. [2022-11-23 02:50:34,983 INFO L131 PetriNetUnfolder]: For 370941/371073 co-relation queries the response was YES. [2022-11-23 02:50:35,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85044 conditions, 10947 events. 4429/10947 cut-off events. For 370941/371073 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 106096 event pairs, 591 based on Foata normal form. 73/10861 useless extension candidates. Maximal degree in co-relation 84922. Up to 3487 conditions per place. [2022-11-23 02:50:35,276 INFO L137 encePairwiseOnDemand]: 488/518 looper letters, 555 selfloop transitions, 548 changer transitions 2/1137 dead transitions. [2022-11-23 02:50:35,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1137 transitions, 34391 flow [2022-11-23 02:50:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:50:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 02:50:35,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2824 transitions. [2022-11-23 02:50:35,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3894098179812466 [2022-11-23 02:50:35,283 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2824 transitions. [2022-11-23 02:50:35,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2824 transitions. [2022-11-23 02:50:35,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:50:35,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2824 transitions. [2022-11-23 02:50:35,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 201.71428571428572) internal successors, (2824), 14 states have internal predecessors, (2824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:35,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:35,297 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:35,297 INFO L175 Difference]: Start difference. First operand has 316 places, 895 transitions, 28283 flow. Second operand 14 states and 2824 transitions. [2022-11-23 02:50:35,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 1137 transitions, 34391 flow [2022-11-23 02:50:40,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1137 transitions, 34292 flow, removed 41 selfloop flow, removed 1 redundant places. [2022-11-23 02:50:40,987 INFO L231 Difference]: Finished difference. Result has 338 places, 947 transitions, 32443 flow [2022-11-23 02:50:40,988 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=28208, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=496, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=32443, PETRI_PLACES=338, PETRI_TRANSITIONS=947} [2022-11-23 02:50:40,988 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 263 predicate places. [2022-11-23 02:50:40,989 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 947 transitions, 32443 flow [2022-11-23 02:50:40,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:40,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:50:40,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:50:40,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 02:50:40,989 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:50:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:50:40,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1615376954, now seen corresponding path program 13 times [2022-11-23 02:50:40,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:50:40,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457291759] [2022-11-23 02:50:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:50:40,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:50:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:50:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:50:41,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:50:41,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457291759] [2022-11-23 02:50:41,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457291759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:50:41,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:50:41,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:50:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66826255] [2022-11-23 02:50:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:50:41,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:50:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:50:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:50:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:50:42,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:50:42,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 947 transitions, 32443 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:42,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:50:42,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:50:42,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:50:51,967 INFO L130 PetriNetUnfolder]: 4698/11640 cut-off events. [2022-11-23 02:50:51,967 INFO L131 PetriNetUnfolder]: For 461203/461350 co-relation queries the response was YES. [2022-11-23 02:50:52,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94737 conditions, 11640 events. 4698/11640 cut-off events. For 461203/461350 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 114433 event pairs, 491 based on Foata normal form. 64/11533 useless extension candidates. Maximal degree in co-relation 94605. Up to 4131 conditions per place. [2022-11-23 02:50:52,228 INFO L137 encePairwiseOnDemand]: 487/518 looper letters, 526 selfloop transitions, 655 changer transitions 2/1215 dead transitions. [2022-11-23 02:50:52,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 1215 transitions, 39008 flow [2022-11-23 02:50:52,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:50:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 02:50:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2858 transitions. [2022-11-23 02:50:52,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39409817981246553 [2022-11-23 02:50:52,232 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2858 transitions. [2022-11-23 02:50:52,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2858 transitions. [2022-11-23 02:50:52,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:50:52,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2858 transitions. [2022-11-23 02:50:52,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 204.14285714285714) internal successors, (2858), 14 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:52,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:52,244 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 518.0) internal successors, (7770), 15 states have internal predecessors, (7770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:52,244 INFO L175 Difference]: Start difference. First operand has 338 places, 947 transitions, 32443 flow. Second operand 14 states and 2858 transitions. [2022-11-23 02:50:52,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 1215 transitions, 39008 flow [2022-11-23 02:50:59,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1215 transitions, 38849 flow, removed 49 selfloop flow, removed 3 redundant places. [2022-11-23 02:50:59,090 INFO L231 Difference]: Finished difference. Result has 360 places, 1003 transitions, 37246 flow [2022-11-23 02:50:59,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=32316, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=601, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=37246, PETRI_PLACES=360, PETRI_TRANSITIONS=1003} [2022-11-23 02:50:59,092 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 285 predicate places. [2022-11-23 02:50:59,092 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 1003 transitions, 37246 flow [2022-11-23 02:50:59,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:59,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:50:59,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:50:59,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 02:50:59,093 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:50:59,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:50:59,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1747589609, now seen corresponding path program 1 times [2022-11-23 02:50:59,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:50:59,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584974614] [2022-11-23 02:50:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:50:59,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:50:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:50:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:50:59,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:50:59,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584974614] [2022-11-23 02:50:59,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584974614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:50:59,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:50:59,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:50:59,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650110562] [2022-11-23 02:50:59,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:50:59,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:50:59,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:50:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:50:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:50:59,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 518 [2022-11-23 02:50:59,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 1003 transitions, 37246 flow. Second operand has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:50:59,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:50:59,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 518 [2022-11-23 02:50:59,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:51:14,893 INFO L130 PetriNetUnfolder]: 9014/20886 cut-off events. [2022-11-23 02:51:14,893 INFO L131 PetriNetUnfolder]: For 956996/957579 co-relation queries the response was YES. [2022-11-23 02:51:15,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167013 conditions, 20886 events. 9014/20886 cut-off events. For 956996/957579 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 213977 event pairs, 1070 based on Foata normal form. 121/20477 useless extension candidates. Maximal degree in co-relation 166870. Up to 11766 conditions per place. [2022-11-23 02:51:15,410 INFO L137 encePairwiseOnDemand]: 496/518 looper letters, 954 selfloop transitions, 707 changer transitions 4/1892 dead transitions. [2022-11-23 02:51:15,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 1892 transitions, 77122 flow [2022-11-23 02:51:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:51:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:51:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1331 transitions. [2022-11-23 02:51:15,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42824967824967825 [2022-11-23 02:51:15,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1331 transitions. [2022-11-23 02:51:15,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1331 transitions. [2022-11-23 02:51:15,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:51:15,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1331 transitions. [2022-11-23 02:51:15,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.83333333333334) internal successors, (1331), 6 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:15,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:15,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:15,416 INFO L175 Difference]: Start difference. First operand has 360 places, 1003 transitions, 37246 flow. Second operand 6 states and 1331 transitions. [2022-11-23 02:51:15,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 1892 transitions, 77122 flow [2022-11-23 02:51:30,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 1892 transitions, 77006 flow, removed 58 selfloop flow, removed 0 redundant places. [2022-11-23 02:51:30,129 INFO L231 Difference]: Finished difference. Result has 370 places, 1552 transitions, 65072 flow [2022-11-23 02:51:30,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=37138, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1003, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=65072, PETRI_PLACES=370, PETRI_TRANSITIONS=1552} [2022-11-23 02:51:30,130 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 295 predicate places. [2022-11-23 02:51:30,130 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 1552 transitions, 65072 flow [2022-11-23 02:51:30,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:30,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:51:30,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:51:30,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 02:51:30,131 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:51:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:51:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1897403316, now seen corresponding path program 1 times [2022-11-23 02:51:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:51:30,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419225108] [2022-11-23 02:51:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:51:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:51:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:51:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:51:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:51:30,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419225108] [2022-11-23 02:51:30,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419225108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:51:30,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:51:30,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:51:30,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17784663] [2022-11-23 02:51:30,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:51:30,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:51:30,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:51:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:51:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:51:30,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 518 [2022-11-23 02:51:30,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 1552 transitions, 65072 flow. Second operand has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:30,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:51:30,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 518 [2022-11-23 02:51:30,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:51:53,932 INFO L130 PetriNetUnfolder]: 10819/24095 cut-off events. [2022-11-23 02:51:53,932 INFO L131 PetriNetUnfolder]: For 1011354/1011957 co-relation queries the response was YES. [2022-11-23 02:51:54,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200821 conditions, 24095 events. 10819/24095 cut-off events. For 1011354/1011957 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 240722 event pairs, 3471 based on Foata normal form. 3/23185 useless extension candidates. Maximal degree in co-relation 200673. Up to 20355 conditions per place. [2022-11-23 02:51:54,564 INFO L137 encePairwiseOnDemand]: 504/518 looper letters, 1258 selfloop transitions, 235 changer transitions 0/1799 dead transitions. [2022-11-23 02:51:54,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1799 transitions, 75852 flow [2022-11-23 02:51:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:51:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:51:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2022-11-23 02:51:54,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40057915057915056 [2022-11-23 02:51:54,568 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1245 transitions. [2022-11-23 02:51:54,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1245 transitions. [2022-11-23 02:51:54,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:51:54,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1245 transitions. [2022-11-23 02:51:54,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:54,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:54,573 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:51:54,574 INFO L175 Difference]: Start difference. First operand has 370 places, 1552 transitions, 65072 flow. Second operand 6 states and 1245 transitions. [2022-11-23 02:51:54,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1799 transitions, 75852 flow [2022-11-23 02:52:15,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1799 transitions, 75324 flow, removed 264 selfloop flow, removed 0 redundant places. [2022-11-23 02:52:15,455 INFO L231 Difference]: Finished difference. Result has 379 places, 1667 transitions, 68024 flow [2022-11-23 02:52:15,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=64544, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68024, PETRI_PLACES=379, PETRI_TRANSITIONS=1667} [2022-11-23 02:52:15,456 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 304 predicate places. [2022-11-23 02:52:15,456 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 1667 transitions, 68024 flow [2022-11-23 02:52:15,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:52:15,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:52:15,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:52:15,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 02:52:15,457 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-23 02:52:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:52:15,457 INFO L85 PathProgramCache]: Analyzing trace with hash 563892762, now seen corresponding path program 1 times [2022-11-23 02:52:15,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:52:15,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924649780] [2022-11-23 02:52:15,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:52:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:52:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:52:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:52:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:52:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924649780] [2022-11-23 02:52:16,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924649780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:52:16,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:52:16,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:52:16,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551978477] [2022-11-23 02:52:16,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:52:16,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:52:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:52:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:52:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:52:17,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 518 [2022-11-23 02:52:17,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1667 transitions, 68024 flow. Second operand has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:52:17,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:52:17,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 518 [2022-11-23 02:52:17,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand