./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8 --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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- 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-2329fc7 [2022-12-13 20:22:50,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:22:50,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:22:50,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:22:50,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:22:50,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:22:50,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:22:50,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:22:50,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:22:50,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:22:50,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:22:50,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:22:50,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:22:50,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:22:50,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:22:50,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:22:50,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:22:50,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:22:50,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:22:50,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:22:50,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:22:50,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:22:50,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:22:50,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:22:50,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:22:50,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:22:50,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:22:50,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:22:50,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:22:50,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:22:50,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:22:50,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:22:50,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:22:50,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:22:50,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:22:50,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:22:50,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:22:50,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:22:50,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:22:50,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:22:50,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:22:50,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:22:50,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:22:50,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:22:50,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:22:50,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:22:50,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:22:50,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:22:50,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:22:50,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:22:50,318 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:22:50,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:22:50,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:22:50,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:22:50,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:22:50,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:22:50,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:22:50,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:22:50,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:22:50,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:22:50,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:22:50,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:22:50,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:22:50,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:22:50,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:22:50,323 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:22:50,323 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_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2022-12-13 20:22:50,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:22:50,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:22:50,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:22:50,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:22:50,535 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:22:50,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-12-13 20:22:53,077 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:22:53,257 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:22:53,258 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-12-13 20:22:53,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/data/322ce31ea/ce8b2668282d4aa6b66064199c1669de/FLAGef1d3de6c [2022-12-13 20:22:53,631 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/data/322ce31ea/ce8b2668282d4aa6b66064199c1669de [2022-12-13 20:22:53,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:22:53,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:22:53,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:22:53,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:22:53,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:22:53,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:22:53" (1/1) ... [2022-12-13 20:22:53,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf47dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:53, skipping insertion in model container [2022-12-13 20:22:53,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:22:53" (1/1) ... [2022-12-13 20:22:53,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:22:53,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:22:54,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:22:54,087 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:22:54,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:22:54,169 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:22:54,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54 WrapperNode [2022-12-13 20:22:54,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:22:54,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:22:54,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:22:54,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:22:54,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,209 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2022-12-13 20:22:54,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:22:54,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:22:54,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:22:54,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:22:54,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:22:54,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:22:54,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:22:54,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:22:54,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (1/1) ... [2022-12-13 20:22:54,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:22:54,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:22:54,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:22:54,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f8586e8-da53-48e6-978b-83790d3c8228/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:22:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:22:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 20:22:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 20:22:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 20:22:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:22:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:22:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:22:54,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:22:54,439 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:22:54,441 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:22:54,795 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:22:54,803 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:22:54,803 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:22:54,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:22:54 BoogieIcfgContainer [2022-12-13 20:22:54,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:22:54,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:22:54,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:22:54,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:22:54,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:22:53" (1/3) ... [2022-12-13 20:22:54,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606bca49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:22:54, skipping insertion in model container [2022-12-13 20:22:54,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:22:54" (2/3) ... [2022-12-13 20:22:54,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606bca49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:22:54, skipping insertion in model container [2022-12-13 20:22:54,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:22:54" (3/3) ... [2022-12-13 20:22:54,811 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2022-12-13 20:22:54,818 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:22:54,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:22:54,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 20:22:54,826 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:22:54,879 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:22:54,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 202 transitions, 409 flow [2022-12-13 20:22:54,961 INFO L130 PetriNetUnfolder]: 0/201 cut-off events. [2022-12-13 20:22:54,961 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:22:54,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 20:22:54,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 202 transitions, 409 flow [2022-12-13 20:22:54,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 201 transitions, 405 flow [2022-12-13 20:22:54,971 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:22:54,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 201 transitions, 405 flow [2022-12-13 20:22:54,982 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 201 transitions, 405 flow [2022-12-13 20:22:54,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 201 transitions, 405 flow [2022-12-13 20:22:55,017 INFO L130 PetriNetUnfolder]: 0/201 cut-off events. [2022-12-13 20:22:55,018 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:22:55,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 20:22:55,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2022-12-13 20:23:20,585 WARN L233 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:23:29,903 WARN L233 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:23:38,601 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:23:43,796 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:06,610 WARN L233 SmtUtils]: Spent 22.80s on a formula simplification that was a NOOP. DAG size: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:12,045 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:23,032 WARN L233 SmtUtils]: Spent 10.98s on a formula simplification that was a NOOP. DAG size: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:32,469 WARN L233 SmtUtils]: Spent 9.43s on a formula simplification that was a NOOP. DAG size: 230 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:42,884 WARN L233 SmtUtils]: Spent 10.40s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:24:54,997 WARN L233 SmtUtils]: Spent 12.11s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:25:29,591 WARN L233 SmtUtils]: Spent 34.59s on a formula simplification that was a NOOP. DAG size: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:25:46,428 WARN L233 SmtUtils]: Spent 16.83s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 20:25:46,436 INFO L134 LiptonReduction]: Checked pairs total: 35140 [2022-12-13 20:25:46,436 INFO L136 LiptonReduction]: Total number of compositions: 165 [2022-12-13 20:25:46,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:25:46,453 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;@70a91bfc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:25:46,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-13 20:25:46,455 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 20:25:46,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:25:46,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:46,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:25:46,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash 663, now seen corresponding path program 1 times [2022-12-13 20:25:46,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:46,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588851785] [2022-12-13 20:25:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:46,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:46,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588851785] [2022-12-13 20:25:46,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588851785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:46,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:46,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:25:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796864431] [2022-12-13 20:25:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:46,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:25:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:46,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:25:46,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:25:46,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 367 [2022-12-13 20:25:46,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 201.5) internal successors, (403), 2 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:46,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 367 [2022-12-13 20:25:46,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:46,730 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2022-12-13 20:25:46,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:25:46,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1921 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2022-12-13 20:25:46,735 INFO L137 encePairwiseOnDemand]: 359/367 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2022-12-13 20:25:46,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2022-12-13 20:25:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:25:46,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:25:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 431 transitions. [2022-12-13 20:25:46,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5871934604904632 [2022-12-13 20:25:46,748 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 431 transitions. [2022-12-13 20:25:46,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 431 transitions. [2022-12-13 20:25:46,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:46,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 431 transitions. [2022-12-13 20:25:46,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 215.5) internal successors, (431), 2 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,763 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,765 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 431 transitions. [2022-12-13 20:25:46,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2022-12-13 20:25:46,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:25:46,770 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2022-12-13 20:25:46,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-12-13 20:25:46,775 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2022-12-13 20:25:46,776 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2022-12-13 20:25:46,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 201.5) internal successors, (403), 2 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:46,776 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:25:46,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:25:46,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:46,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:46,777 INFO L85 PathProgramCache]: Analyzing trace with hash 633460034, now seen corresponding path program 1 times [2022-12-13 20:25:46,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:46,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024190453] [2022-12-13 20:25:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:46,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:46,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:46,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:46,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024190453] [2022-12-13 20:25:46,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024190453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:46,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:46,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:25:46,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224913020] [2022-12-13 20:25:46,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:46,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:25:46,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:46,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:25:46,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:25:46,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 367 [2022-12-13 20:25:46,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:46,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:46,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 367 [2022-12-13 20:25:46,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:47,137 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2022-12-13 20:25:47,138 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:25:47,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2338 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2022-12-13 20:25:47,141 INFO L137 encePairwiseOnDemand]: 363/367 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2022-12-13 20:25:47,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2022-12-13 20:25:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:25:47,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:25:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2022-12-13 20:25:47,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5304268846503178 [2022-12-13 20:25:47,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2022-12-13 20:25:47,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2022-12-13 20:25:47,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:47,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2022-12-13 20:25:47,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:47,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:47,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:47,151 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 584 transitions. [2022-12-13 20:25:47,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2022-12-13 20:25:47,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:25:47,152 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2022-12-13 20:25:47,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 20:25:47,153 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2022-12-13 20:25:47,153 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2022-12-13 20:25:47,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:47,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:47,153 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:47,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:25:47,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1215003854, now seen corresponding path program 1 times [2022-12-13 20:25:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:47,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572321114] [2022-12-13 20:25:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:47,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:47,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572321114] [2022-12-13 20:25:47,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572321114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:47,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:47,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:25:47,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413349876] [2022-12-13 20:25:47,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:47,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:25:47,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:47,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:25:47,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:25:47,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 367 [2022-12-13 20:25:47,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:47,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:47,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 367 [2022-12-13 20:25:47,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:48,182 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2022-12-13 20:25:48,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:25:48,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5343 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2022-12-13 20:25:48,186 INFO L137 encePairwiseOnDemand]: 353/367 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2022-12-13 20:25:48,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2022-12-13 20:25:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:25:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:25:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1010 transitions. [2022-12-13 20:25:48,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4586739327883742 [2022-12-13 20:25:48,188 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1010 transitions. [2022-12-13 20:25:48,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1010 transitions. [2022-12-13 20:25:48,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:48,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1010 transitions. [2022-12-13 20:25:48,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:48,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:48,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:48,193 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1010 transitions. [2022-12-13 20:25:48,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2022-12-13 20:25:48,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:25:48,195 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2022-12-13 20:25:48,195 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2022-12-13 20:25:48,196 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2022-12-13 20:25:48,196 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2022-12-13 20:25:48,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:48,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:48,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:48,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:25:48,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:48,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:48,197 INFO L85 PathProgramCache]: Analyzing trace with hash 365616502, now seen corresponding path program 1 times [2022-12-13 20:25:48,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:48,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873964734] [2022-12-13 20:25:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:48,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:48,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:48,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873964734] [2022-12-13 20:25:48,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873964734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:48,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:48,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:25:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943446075] [2022-12-13 20:25:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:48,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:25:48,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:25:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:25:48,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 367 [2022-12-13 20:25:48,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:48,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:48,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 367 [2022-12-13 20:25:48,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:49,440 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2022-12-13 20:25:49,440 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2022-12-13 20:25:49,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9984 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2022-12-13 20:25:49,450 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2022-12-13 20:25:49,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2022-12-13 20:25:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:25:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:25:49,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1084 transitions. [2022-12-13 20:25:49,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49227974568574023 [2022-12-13 20:25:49,453 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1084 transitions. [2022-12-13 20:25:49,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1084 transitions. [2022-12-13 20:25:49,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:49,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1084 transitions. [2022-12-13 20:25:49,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:49,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:49,458 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:49,458 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1084 transitions. [2022-12-13 20:25:49,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2022-12-13 20:25:49,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:25:49,463 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2022-12-13 20:25:49,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2022-12-13 20:25:49,464 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2022-12-13 20:25:49,464 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2022-12-13 20:25:49,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:49,465 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:49,465 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:49,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:25:49,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1268116662, now seen corresponding path program 1 times [2022-12-13 20:25:49,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:49,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836757045] [2022-12-13 20:25:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:49,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:49,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:49,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836757045] [2022-12-13 20:25:49,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836757045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:49,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:49,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:25:49,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265164945] [2022-12-13 20:25:49,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:49,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:25:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:25:49,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:25:50,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 367 [2022-12-13 20:25:50,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:50,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:50,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 367 [2022-12-13 20:25:50,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:51,257 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2022-12-13 20:25:51,257 INFO L131 PetriNetUnfolder]: For 1437/1445 co-relation queries the response was YES. [2022-12-13 20:25:51,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1437/1445 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11365 event pairs, 245 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 5641. Up to 1219 conditions per place. [2022-12-13 20:25:51,266 INFO L137 encePairwiseOnDemand]: 353/367 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2022-12-13 20:25:51,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2022-12-13 20:25:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:25:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:25:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2393 transitions. [2022-12-13 20:25:51,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4346957311534968 [2022-12-13 20:25:51,283 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2393 transitions. [2022-12-13 20:25:51,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2393 transitions. [2022-12-13 20:25:51,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:51,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2393 transitions. [2022-12-13 20:25:51,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 159.53333333333333) internal successors, (2393), 15 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:51,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 367.0) internal successors, (5872), 16 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:51,300 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 367.0) internal successors, (5872), 16 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:51,300 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2393 transitions. [2022-12-13 20:25:51,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2022-12-13 20:25:51,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2289 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-12-13 20:25:51,315 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2022-12-13 20:25:51,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2022-12-13 20:25:51,316 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2022-12-13 20:25:51,316 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2022-12-13 20:25:51,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:51,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:51,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:51,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:25:51,317 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:51,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:51,317 INFO L85 PathProgramCache]: Analyzing trace with hash 54000125, now seen corresponding path program 1 times [2022-12-13 20:25:51,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:51,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139532655] [2022-12-13 20:25:51,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:51,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:51,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139532655] [2022-12-13 20:25:51,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139532655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:51,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:51,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:25:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445207602] [2022-12-13 20:25:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:51,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:25:51,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:25:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:25:52,266 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:25:52,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:52,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:52,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:25:52,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:53,320 INFO L130 PetriNetUnfolder]: 774/2147 cut-off events. [2022-12-13 20:25:53,321 INFO L131 PetriNetUnfolder]: For 2127/2161 co-relation queries the response was YES. [2022-12-13 20:25:53,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6870 conditions, 2147 events. 774/2147 cut-off events. For 2127/2161 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14281 event pairs, 93 based on Foata normal form. 19/2088 useless extension candidates. Maximal degree in co-relation 6851. Up to 622 conditions per place. [2022-12-13 20:25:53,329 INFO L137 encePairwiseOnDemand]: 335/367 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2022-12-13 20:25:53,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2022-12-13 20:25:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:25:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:25:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2032 transitions. [2022-12-13 20:25:53,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46139872842870117 [2022-12-13 20:25:53,333 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2032 transitions. [2022-12-13 20:25:53,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2032 transitions. [2022-12-13 20:25:53,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:53,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2032 transitions. [2022-12-13 20:25:53,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 169.33333333333334) internal successors, (2032), 12 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:53,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 367.0) internal successors, (4771), 13 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:53,341 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 367.0) internal successors, (4771), 13 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:53,341 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 2032 transitions. [2022-12-13 20:25:53,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2022-12-13 20:25:53,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 424 transitions, 3157 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 20:25:53,353 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2022-12-13 20:25:53,353 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2022-12-13 20:25:53,354 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2022-12-13 20:25:53,354 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2022-12-13 20:25:53,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:53,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:53,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:53,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:25:53,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:53,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1528508151, now seen corresponding path program 2 times [2022-12-13 20:25:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:53,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047181773] [2022-12-13 20:25:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:53,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:53,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047181773] [2022-12-13 20:25:53,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047181773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:53,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:53,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:25:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974000268] [2022-12-13 20:25:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:53,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:25:53,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:25:53,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:25:54,269 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:25:54,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:54,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:54,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:25:54,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:55,430 INFO L130 PetriNetUnfolder]: 866/2397 cut-off events. [2022-12-13 20:25:55,431 INFO L131 PetriNetUnfolder]: For 4863/4903 co-relation queries the response was YES. [2022-12-13 20:25:55,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8953 conditions, 2397 events. 866/2397 cut-off events. For 4863/4903 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 16222 event pairs, 109 based on Foata normal form. 36/2325 useless extension candidates. Maximal degree in co-relation 8924. Up to 809 conditions per place. [2022-12-13 20:25:55,453 INFO L137 encePairwiseOnDemand]: 346/367 looper letters, 372 selfloop transitions, 95 changer transitions 3/510 dead transitions. [2022-12-13 20:25:55,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 510 transitions, 4681 flow [2022-12-13 20:25:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:25:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:25:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2887 transitions. [2022-12-13 20:25:55,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4370269452013321 [2022-12-13 20:25:55,457 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2887 transitions. [2022-12-13 20:25:55,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2887 transitions. [2022-12-13 20:25:55,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:55,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2887 transitions. [2022-12-13 20:25:55,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 160.38888888888889) internal successors, (2887), 18 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:55,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:55,468 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:55,469 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2887 transitions. [2022-12-13 20:25:55,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 510 transitions, 4681 flow [2022-12-13 20:25:55,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 510 transitions, 4669 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 20:25:55,513 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2901 flow [2022-12-13 20:25:55,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2901, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2022-12-13 20:25:55,514 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2022-12-13 20:25:55,514 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2901 flow [2022-12-13 20:25:55,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:55,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:55,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:55,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:25:55,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2146154193, now seen corresponding path program 3 times [2022-12-13 20:25:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:55,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441357404] [2022-12-13 20:25:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:55,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:55,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:55,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441357404] [2022-12-13 20:25:55,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441357404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:55,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:55,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:25:55,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368396580] [2022-12-13 20:25:55,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:55,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:25:55,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:25:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:25:56,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:25:56,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2901 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:56,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:56,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:25:56,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:57,738 INFO L130 PetriNetUnfolder]: 1149/3189 cut-off events. [2022-12-13 20:25:57,739 INFO L131 PetriNetUnfolder]: For 9814/9888 co-relation queries the response was YES. [2022-12-13 20:25:57,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13251 conditions, 3189 events. 1149/3189 cut-off events. For 9814/9888 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23818 event pairs, 83 based on Foata normal form. 37/3095 useless extension candidates. Maximal degree in co-relation 13216. Up to 853 conditions per place. [2022-12-13 20:25:57,769 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 354 selfloop transitions, 190 changer transitions 3/587 dead transitions. [2022-12-13 20:25:57,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 587 transitions, 6005 flow [2022-12-13 20:25:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:25:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:25:57,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2792 transitions. [2022-12-13 20:25:57,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4475076133995833 [2022-12-13 20:25:57,772 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2792 transitions. [2022-12-13 20:25:57,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2792 transitions. [2022-12-13 20:25:57,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:57,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2792 transitions. [2022-12-13 20:25:57,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.23529411764707) internal successors, (2792), 17 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:57,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:57,781 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:57,781 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2901 flow. Second operand 17 states and 2792 transitions. [2022-12-13 20:25:57,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 587 transitions, 6005 flow [2022-12-13 20:25:57,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 587 transitions, 5995 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 20:25:57,827 INFO L231 Difference]: Finished difference. Result has 174 places, 386 transitions, 4744 flow [2022-12-13 20:25:57,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=2891, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4744, PETRI_PLACES=174, PETRI_TRANSITIONS=386} [2022-12-13 20:25:57,828 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 97 predicate places. [2022-12-13 20:25:57,828 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 386 transitions, 4744 flow [2022-12-13 20:25:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:57,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:57,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:57,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:25:57,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:25:57,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:57,829 INFO L85 PathProgramCache]: Analyzing trace with hash 289570055, now seen corresponding path program 4 times [2022-12-13 20:25:57,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:57,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243023687] [2022-12-13 20:25:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:57,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:58,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:58,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243023687] [2022-12-13 20:25:58,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243023687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:25:58,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:25:58,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:25:58,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460707212] [2022-12-13 20:25:58,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:25:58,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:25:58,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:58,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:25:58,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:25:58,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:25:58,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 386 transitions, 4744 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:25:58,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:58,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:25:58,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:00,607 INFO L130 PetriNetUnfolder]: 1447/4001 cut-off events. [2022-12-13 20:26:00,607 INFO L131 PetriNetUnfolder]: For 20261/20406 co-relation queries the response was YES. [2022-12-13 20:26:00,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18510 conditions, 4001 events. 1447/4001 cut-off events. For 20261/20406 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 32008 event pairs, 256 based on Foata normal form. 80/3919 useless extension candidates. Maximal degree in co-relation 18463. Up to 966 conditions per place. [2022-12-13 20:26:00,628 INFO L137 encePairwiseOnDemand]: 335/367 looper letters, 368 selfloop transitions, 240 changer transitions 2/650 dead transitions. [2022-12-13 20:26:00,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 650 transitions, 8272 flow [2022-12-13 20:26:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2342 transitions. [2022-12-13 20:26:00,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4558193849746983 [2022-12-13 20:26:00,642 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2342 transitions. [2022-12-13 20:26:00,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2342 transitions. [2022-12-13 20:26:00,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:00,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2342 transitions. [2022-12-13 20:26:00,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.28571428571428) internal successors, (2342), 14 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:00,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:00,650 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:00,650 INFO L175 Difference]: Start difference. First operand has 174 places, 386 transitions, 4744 flow. Second operand 14 states and 2342 transitions. [2022-12-13 20:26:00,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 650 transitions, 8272 flow [2022-12-13 20:26:00,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 650 transitions, 8182 flow, removed 36 selfloop flow, removed 4 redundant places. [2022-12-13 20:26:00,743 INFO L231 Difference]: Finished difference. Result has 195 places, 465 transitions, 6910 flow [2022-12-13 20:26:00,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=4673, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6910, PETRI_PLACES=195, PETRI_TRANSITIONS=465} [2022-12-13 20:26:00,744 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 118 predicate places. [2022-12-13 20:26:00,744 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 465 transitions, 6910 flow [2022-12-13 20:26:00,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:00,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:00,744 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:00,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:26:00,744 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash -404467611, now seen corresponding path program 5 times [2022-12-13 20:26:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:00,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139361510] [2022-12-13 20:26:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:01,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:01,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139361510] [2022-12-13 20:26:01,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139361510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:01,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:01,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:01,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200496523] [2022-12-13 20:26:01,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:01,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:01,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:01,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:01,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:01,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 465 transitions, 6910 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:01,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:01,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:01,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:04,015 INFO L130 PetriNetUnfolder]: 1780/4916 cut-off events. [2022-12-13 20:26:04,015 INFO L131 PetriNetUnfolder]: For 36245/36470 co-relation queries the response was YES. [2022-12-13 20:26:04,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24960 conditions, 4916 events. 1780/4916 cut-off events. For 36245/36470 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 41289 event pairs, 199 based on Foata normal form. 125/4837 useless extension candidates. Maximal degree in co-relation 24902. Up to 1111 conditions per place. [2022-12-13 20:26:04,044 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 489 selfloop transitions, 284 changer transitions 3/816 dead transitions. [2022-12-13 20:26:04,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 816 transitions, 12048 flow [2022-12-13 20:26:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:26:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:26:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2638 transitions. [2022-12-13 20:26:04,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4492506811989101 [2022-12-13 20:26:04,049 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2638 transitions. [2022-12-13 20:26:04,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2638 transitions. [2022-12-13 20:26:04,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:04,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2638 transitions. [2022-12-13 20:26:04,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 164.875) internal successors, (2638), 16 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:04,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 367.0) internal successors, (6239), 17 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:04,056 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 367.0) internal successors, (6239), 17 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:04,056 INFO L175 Difference]: Start difference. First operand has 195 places, 465 transitions, 6910 flow. Second operand 16 states and 2638 transitions. [2022-12-13 20:26:04,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 816 transitions, 12048 flow [2022-12-13 20:26:04,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 816 transitions, 12001 flow, removed 14 selfloop flow, removed 1 redundant places. [2022-12-13 20:26:04,262 INFO L231 Difference]: Finished difference. Result has 219 places, 559 transitions, 9763 flow [2022-12-13 20:26:04,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=6874, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9763, PETRI_PLACES=219, PETRI_TRANSITIONS=559} [2022-12-13 20:26:04,262 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 142 predicate places. [2022-12-13 20:26:04,262 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 559 transitions, 9763 flow [2022-12-13 20:26:04,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:04,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:04,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:04,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:26:04,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash -282712707, now seen corresponding path program 6 times [2022-12-13 20:26:04,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:04,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436926034] [2022-12-13 20:26:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:04,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:04,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:04,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436926034] [2022-12-13 20:26:04,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436926034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:04,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:04,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:04,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082985438] [2022-12-13 20:26:04,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:04,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:04,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:05,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:05,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 559 transitions, 9763 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:05,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:05,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:05,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:07,667 INFO L130 PetriNetUnfolder]: 2164/5948 cut-off events. [2022-12-13 20:26:07,667 INFO L131 PetriNetUnfolder]: For 61168/61469 co-relation queries the response was YES. [2022-12-13 20:26:07,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32972 conditions, 5948 events. 2164/5948 cut-off events. For 61168/61469 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 52182 event pairs, 356 based on Foata normal form. 154/5855 useless extension candidates. Maximal degree in co-relation 32904. Up to 1344 conditions per place. [2022-12-13 20:26:07,700 INFO L137 encePairwiseOnDemand]: 335/367 looper letters, 470 selfloop transitions, 364 changer transitions 2/876 dead transitions. [2022-12-13 20:26:07,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 876 transitions, 15211 flow [2022-12-13 20:26:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2330 transitions. [2022-12-13 20:26:07,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4534838458544181 [2022-12-13 20:26:07,703 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2330 transitions. [2022-12-13 20:26:07,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2330 transitions. [2022-12-13 20:26:07,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:07,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2330 transitions. [2022-12-13 20:26:07,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.42857142857142) internal successors, (2330), 14 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:07,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:07,709 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:07,709 INFO L175 Difference]: Start difference. First operand has 219 places, 559 transitions, 9763 flow. Second operand 14 states and 2330 transitions. [2022-12-13 20:26:07,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 876 transitions, 15211 flow [2022-12-13 20:26:08,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 876 transitions, 15145 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-12-13 20:26:08,063 INFO L231 Difference]: Finished difference. Result has 240 places, 662 transitions, 13338 flow [2022-12-13 20:26:08,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=9713, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13338, PETRI_PLACES=240, PETRI_TRANSITIONS=662} [2022-12-13 20:26:08,063 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 163 predicate places. [2022-12-13 20:26:08,064 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 662 transitions, 13338 flow [2022-12-13 20:26:08,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:08,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:08,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:26:08,064 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash -898171577, now seen corresponding path program 7 times [2022-12-13 20:26:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548598735] [2022-12-13 20:26:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:08,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:08,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548598735] [2022-12-13 20:26:08,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548598735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:08,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:08,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:08,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911288840] [2022-12-13 20:26:08,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:08,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:08,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:08,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:08,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:09,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:09,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 662 transitions, 13338 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:09,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:09,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:09,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:11,875 INFO L130 PetriNetUnfolder]: 2378/6478 cut-off events. [2022-12-13 20:26:11,875 INFO L131 PetriNetUnfolder]: For 88523/88901 co-relation queries the response was YES. [2022-12-13 20:26:11,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39003 conditions, 6478 events. 2378/6478 cut-off events. For 88523/88901 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 58030 event pairs, 262 based on Foata normal form. 239/6457 useless extension candidates. Maximal degree in co-relation 38924. Up to 1701 conditions per place. [2022-12-13 20:26:11,931 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 497 selfloop transitions, 414 changer transitions 3/954 dead transitions. [2022-12-13 20:26:11,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 954 transitions, 18214 flow [2022-12-13 20:26:11,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:26:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:26:11,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2955 transitions. [2022-12-13 20:26:11,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44732061762034514 [2022-12-13 20:26:11,936 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2955 transitions. [2022-12-13 20:26:11,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2955 transitions. [2022-12-13 20:26:11,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:11,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2955 transitions. [2022-12-13 20:26:11,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 164.16666666666666) internal successors, (2955), 18 states have internal predecessors, (2955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:11,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:11,946 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:11,947 INFO L175 Difference]: Start difference. First operand has 240 places, 662 transitions, 13338 flow. Second operand 18 states and 2955 transitions. [2022-12-13 20:26:11,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 954 transitions, 18214 flow [2022-12-13 20:26:12,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 954 transitions, 18148 flow, removed 33 selfloop flow, removed 0 redundant places. [2022-12-13 20:26:12,575 INFO L231 Difference]: Finished difference. Result has 269 places, 723 transitions, 16462 flow [2022-12-13 20:26:12,576 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=13284, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=354, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16462, PETRI_PLACES=269, PETRI_TRANSITIONS=723} [2022-12-13 20:26:12,576 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 192 predicate places. [2022-12-13 20:26:12,576 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 723 transitions, 16462 flow [2022-12-13 20:26:12,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:12,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:12,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:12,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:26:12,577 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:12,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:12,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1632206265, now seen corresponding path program 8 times [2022-12-13 20:26:12,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:12,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220102692] [2022-12-13 20:26:12,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:12,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:12,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:12,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220102692] [2022-12-13 20:26:12,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220102692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:12,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:12,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138895970] [2022-12-13 20:26:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:12,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:12,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:13,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:13,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 723 transitions, 16462 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:13,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:13,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:13,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:16,624 INFO L130 PetriNetUnfolder]: 2698/7433 cut-off events. [2022-12-13 20:26:16,624 INFO L131 PetriNetUnfolder]: For 129842/130306 co-relation queries the response was YES. [2022-12-13 20:26:16,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47587 conditions, 7433 events. 2698/7433 cut-off events. For 129842/130306 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 69031 event pairs, 457 based on Foata normal form. 254/7372 useless extension candidates. Maximal degree in co-relation 47495. Up to 1761 conditions per place. [2022-12-13 20:26:16,687 INFO L137 encePairwiseOnDemand]: 335/367 looper letters, 561 selfloop transitions, 443 changer transitions 2/1046 dead transitions. [2022-12-13 20:26:16,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1046 transitions, 23121 flow [2022-12-13 20:26:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:16,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2317 transitions. [2022-12-13 20:26:16,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45095367847411444 [2022-12-13 20:26:16,690 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2317 transitions. [2022-12-13 20:26:16,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2317 transitions. [2022-12-13 20:26:16,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:16,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2317 transitions. [2022-12-13 20:26:16,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.5) internal successors, (2317), 14 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:16,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:16,696 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:16,696 INFO L175 Difference]: Start difference. First operand has 269 places, 723 transitions, 16462 flow. Second operand 14 states and 2317 transitions. [2022-12-13 20:26:16,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1046 transitions, 23121 flow [2022-12-13 20:26:17,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1046 transitions, 22985 flow, removed 37 selfloop flow, removed 3 redundant places. [2022-12-13 20:26:17,672 INFO L231 Difference]: Finished difference. Result has 291 places, 816 transitions, 20661 flow [2022-12-13 20:26:17,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=16350, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=354, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20661, PETRI_PLACES=291, PETRI_TRANSITIONS=816} [2022-12-13 20:26:17,673 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2022-12-13 20:26:17,673 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 816 transitions, 20661 flow [2022-12-13 20:26:17,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:17,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:17,674 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:17,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:26:17,674 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:17,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1650626315, now seen corresponding path program 9 times [2022-12-13 20:26:17,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:17,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251486502] [2022-12-13 20:26:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:17,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:17,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251486502] [2022-12-13 20:26:17,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251486502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:17,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:17,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:17,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134303264] [2022-12-13 20:26:17,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:17,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:17,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:17,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:18,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:18,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 816 transitions, 20661 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:18,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:18,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:18,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:22,980 INFO L130 PetriNetUnfolder]: 2865/7876 cut-off events. [2022-12-13 20:26:22,980 INFO L131 PetriNetUnfolder]: For 167423/168029 co-relation queries the response was YES. [2022-12-13 20:26:23,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53333 conditions, 7876 events. 2865/7876 cut-off events. For 167423/168029 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 74450 event pairs, 303 based on Foata normal form. 384/7923 useless extension candidates. Maximal degree in co-relation 53231. Up to 1827 conditions per place. [2022-12-13 20:26:23,067 INFO L137 encePairwiseOnDemand]: 339/367 looper letters, 583 selfloop transitions, 495 changer transitions 3/1121 dead transitions. [2022-12-13 20:26:23,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1121 transitions, 26569 flow [2022-12-13 20:26:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:26:23,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:26:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2796 transitions. [2022-12-13 20:26:23,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44814874178554254 [2022-12-13 20:26:23,072 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2796 transitions. [2022-12-13 20:26:23,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2796 transitions. [2022-12-13 20:26:23,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:23,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2796 transitions. [2022-12-13 20:26:23,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.47058823529412) internal successors, (2796), 17 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:23,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:23,083 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:23,083 INFO L175 Difference]: Start difference. First operand has 291 places, 816 transitions, 20661 flow. Second operand 17 states and 2796 transitions. [2022-12-13 20:26:23,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1121 transitions, 26569 flow [2022-12-13 20:26:24,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1121 transitions, 26487 flow, removed 41 selfloop flow, removed 0 redundant places. [2022-12-13 20:26:24,309 INFO L231 Difference]: Finished difference. Result has 318 places, 881 transitions, 24483 flow [2022-12-13 20:26:24,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=20591, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24483, PETRI_PLACES=318, PETRI_TRANSITIONS=881} [2022-12-13 20:26:24,310 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 241 predicate places. [2022-12-13 20:26:24,310 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 881 transitions, 24483 flow [2022-12-13 20:26:24,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:24,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:24,310 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:24,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:26:24,310 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash -570493767, now seen corresponding path program 10 times [2022-12-13 20:26:24,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:24,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136158876] [2022-12-13 20:26:24,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:24,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:24,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:24,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136158876] [2022-12-13 20:26:24,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136158876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:24,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:24,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991822296] [2022-12-13 20:26:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:24,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:24,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:24,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:25,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:25,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 881 transitions, 24483 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:25,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:25,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:25,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:30,818 INFO L130 PetriNetUnfolder]: 3013/8331 cut-off events. [2022-12-13 20:26:30,818 INFO L131 PetriNetUnfolder]: For 210387/210968 co-relation queries the response was YES. [2022-12-13 20:26:30,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59305 conditions, 8331 events. 3013/8331 cut-off events. For 210387/210968 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 79882 event pairs, 351 based on Foata normal form. 339/8312 useless extension candidates. Maximal degree in co-relation 59191. Up to 2504 conditions per place. [2022-12-13 20:26:30,922 INFO L137 encePairwiseOnDemand]: 336/367 looper letters, 473 selfloop transitions, 615 changer transitions 2/1130 dead transitions. [2022-12-13 20:26:30,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1130 transitions, 30161 flow [2022-12-13 20:26:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:30,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2314 transitions. [2022-12-13 20:26:30,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4503697936940444 [2022-12-13 20:26:30,927 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2314 transitions. [2022-12-13 20:26:30,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2314 transitions. [2022-12-13 20:26:30,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:30,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2314 transitions. [2022-12-13 20:26:30,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.28571428571428) internal successors, (2314), 14 states have internal predecessors, (2314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:30,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:30,935 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:30,935 INFO L175 Difference]: Start difference. First operand has 318 places, 881 transitions, 24483 flow. Second operand 14 states and 2314 transitions. [2022-12-13 20:26:30,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1130 transitions, 30161 flow [2022-12-13 20:26:32,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1130 transitions, 30050 flow, removed 45 selfloop flow, removed 5 redundant places. [2022-12-13 20:26:32,561 INFO L231 Difference]: Finished difference. Result has 338 places, 944 transitions, 28854 flow [2022-12-13 20:26:32,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=24388, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=554, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=28854, PETRI_PLACES=338, PETRI_TRANSITIONS=944} [2022-12-13 20:26:32,562 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 261 predicate places. [2022-12-13 20:26:32,562 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 944 transitions, 28854 flow [2022-12-13 20:26:32,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:32,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:32,562 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:32,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:26:32,562 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:32,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1128821267, now seen corresponding path program 11 times [2022-12-13 20:26:32,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:32,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108862143] [2022-12-13 20:26:32,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:32,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:32,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:32,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108862143] [2022-12-13 20:26:32,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108862143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:32,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:32,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:32,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056133328] [2022-12-13 20:26:32,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:32,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:32,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:33,343 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:33,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 944 transitions, 28854 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:33,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:33,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:33,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:37,759 INFO L130 PetriNetUnfolder]: 3221/8921 cut-off events. [2022-12-13 20:26:37,760 INFO L131 PetriNetUnfolder]: For 278449/279257 co-relation queries the response was YES. [2022-12-13 20:26:37,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67401 conditions, 8921 events. 3221/8921 cut-off events. For 278449/279257 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 86899 event pairs, 400 based on Foata normal form. 516/9050 useless extension candidates. Maximal degree in co-relation 67276. Up to 2577 conditions per place. [2022-12-13 20:26:37,839 INFO L137 encePairwiseOnDemand]: 337/367 looper letters, 496 selfloop transitions, 636 changer transitions 2/1174 dead transitions. [2022-12-13 20:26:37,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 1174 transitions, 34943 flow [2022-12-13 20:26:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2282 transitions. [2022-12-13 20:26:37,842 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.444141689373297 [2022-12-13 20:26:37,842 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2282 transitions. [2022-12-13 20:26:37,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2282 transitions. [2022-12-13 20:26:37,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:37,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2282 transitions. [2022-12-13 20:26:37,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 163.0) internal successors, (2282), 14 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:37,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:37,847 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:37,847 INFO L175 Difference]: Start difference. First operand has 338 places, 944 transitions, 28854 flow. Second operand 14 states and 2282 transitions. [2022-12-13 20:26:37,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 1174 transitions, 34943 flow [2022-12-13 20:26:40,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1174 transitions, 34841 flow, removed 51 selfloop flow, removed 0 redundant places. [2022-12-13 20:26:40,274 INFO L231 Difference]: Finished difference. Result has 363 places, 1006 transitions, 33652 flow [2022-12-13 20:26:40,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=28760, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=575, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33652, PETRI_PLACES=363, PETRI_TRANSITIONS=1006} [2022-12-13 20:26:40,275 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 286 predicate places. [2022-12-13 20:26:40,275 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 1006 transitions, 33652 flow [2022-12-13 20:26:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:40,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:40,275 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:26:40,275 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1416602327, now seen corresponding path program 12 times [2022-12-13 20:26:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:40,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857933928] [2022-12-13 20:26:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:40,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:40,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:40,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857933928] [2022-12-13 20:26:40,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857933928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:40,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:40,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:26:40,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748068501] [2022-12-13 20:26:40,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:40,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:26:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:40,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:26:40,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:26:41,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 367 [2022-12-13 20:26:41,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 1006 transitions, 33652 flow. Second operand has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:41,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:41,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 367 [2022-12-13 20:26:41,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:46,457 INFO L130 PetriNetUnfolder]: 3359/9330 cut-off events. [2022-12-13 20:26:46,457 INFO L131 PetriNetUnfolder]: For 345600/346371 co-relation queries the response was YES. [2022-12-13 20:26:46,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74287 conditions, 9330 events. 3359/9330 cut-off events. For 345600/346371 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 92068 event pairs, 443 based on Foata normal form. 478/9391 useless extension candidates. Maximal degree in co-relation 74150. Up to 2467 conditions per place. [2022-12-13 20:26:46,618 INFO L137 encePairwiseOnDemand]: 336/367 looper letters, 549 selfloop transitions, 659 changer transitions 2/1250 dead transitions. [2022-12-13 20:26:46,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1250 transitions, 40049 flow [2022-12-13 20:26:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:26:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 20:26:46,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2301 transitions. [2022-12-13 20:26:46,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44783962631374075 [2022-12-13 20:26:46,621 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2301 transitions. [2022-12-13 20:26:46,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2301 transitions. [2022-12-13 20:26:46,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:46,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2301 transitions. [2022-12-13 20:26:46,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 164.35714285714286) internal successors, (2301), 14 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:46,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:46,630 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 367.0) internal successors, (5505), 15 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:46,630 INFO L175 Difference]: Start difference. First operand has 363 places, 1006 transitions, 33652 flow. Second operand 14 states and 2301 transitions. [2022-12-13 20:26:46,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1250 transitions, 40049 flow [2022-12-13 20:26:49,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1250 transitions, 39881 flow, removed 84 selfloop flow, removed 0 redundant places. [2022-12-13 20:26:49,866 INFO L231 Difference]: Finished difference. Result has 387 places, 1060 transitions, 38359 flow [2022-12-13 20:26:49,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=33514, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1006, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=605, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38359, PETRI_PLACES=387, PETRI_TRANSITIONS=1060} [2022-12-13 20:26:49,867 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 310 predicate places. [2022-12-13 20:26:49,867 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 1060 transitions, 38359 flow [2022-12-13 20:26:49,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.2) internal successors, (1462), 10 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:49,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:49,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:49,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 20:26:49,868 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:26:49,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1769510008, now seen corresponding path program 1 times [2022-12-13 20:26:49,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:49,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704778241] [2022-12-13 20:26:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:49,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:26:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704778241] [2022-12-13 20:26:50,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704778241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:50,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:50,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:26:50,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107258361] [2022-12-13 20:26:50,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:50,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:26:50,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:50,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:26:50,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:26:50,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 367 [2022-12-13 20:26:50,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 1060 transitions, 38359 flow. Second operand has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:50,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:50,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 367 [2022-12-13 20:26:50,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:57,195 INFO L130 PetriNetUnfolder]: 5415/13630 cut-off events. [2022-12-13 20:26:57,195 INFO L131 PetriNetUnfolder]: For 518776/519182 co-relation queries the response was YES. [2022-12-13 20:26:57,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102335 conditions, 13630 events. 5415/13630 cut-off events. For 518776/519182 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 132649 event pairs, 2098 based on Foata normal form. 35/12995 useless extension candidates. Maximal degree in co-relation 102187. Up to 10078 conditions per place. [2022-12-13 20:26:57,338 INFO L137 encePairwiseOnDemand]: 353/367 looper letters, 980 selfloop transitions, 165 changer transitions 0/1324 dead transitions. [2022-12-13 20:26:57,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1324 transitions, 49063 flow [2022-12-13 20:26:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:26:57,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:26:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1011 transitions. [2022-12-13 20:26:57,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4591280653950954 [2022-12-13 20:26:57,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1011 transitions. [2022-12-13 20:26:57,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1011 transitions. [2022-12-13 20:26:57,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:57,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1011 transitions. [2022-12-13 20:26:57,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:57,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:57,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:26:57,343 INFO L175 Difference]: Start difference. First operand has 387 places, 1060 transitions, 38359 flow. Second operand 6 states and 1011 transitions. [2022-12-13 20:26:57,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1324 transitions, 49063 flow [2022-12-13 20:27:02,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1324 transitions, 48856 flow, removed 90 selfloop flow, removed 2 redundant places. [2022-12-13 20:27:02,972 INFO L231 Difference]: Finished difference. Result has 394 places, 1196 transitions, 41782 flow [2022-12-13 20:27:02,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=38224, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=41782, PETRI_PLACES=394, PETRI_TRANSITIONS=1196} [2022-12-13 20:27:02,973 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 317 predicate places. [2022-12-13 20:27:02,973 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 1196 transitions, 41782 flow [2022-12-13 20:27:02,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:02,973 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:27:02,973 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:27:02,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 20:27:02,973 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:27:02,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:27:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash 371052811, now seen corresponding path program 1 times [2022-12-13 20:27:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:27:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927239846] [2022-12-13 20:27:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:27:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:27:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:27:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:27:03,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:27:03,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927239846] [2022-12-13 20:27:03,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927239846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:27:03,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:27:03,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:27:03,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623118491] [2022-12-13 20:27:03,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:27:03,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:27:03,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:27:03,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:27:03,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:27:03,335 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 367 [2022-12-13 20:27:03,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 1196 transitions, 41782 flow. Second operand has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:03,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:27:03,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 367 [2022-12-13 20:27:03,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:27:13,093 INFO L130 PetriNetUnfolder]: 7630/18163 cut-off events. [2022-12-13 20:27:13,093 INFO L131 PetriNetUnfolder]: For 763775/764696 co-relation queries the response was YES. [2022-12-13 20:27:13,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145519 conditions, 18163 events. 7630/18163 cut-off events. For 763775/764696 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 179903 event pairs, 803 based on Foata normal form. 113/17770 useless extension candidates. Maximal degree in co-relation 145366. Up to 10387 conditions per place. [2022-12-13 20:27:13,376 INFO L137 encePairwiseOnDemand]: 345/367 looper letters, 1076 selfloop transitions, 701 changer transitions 4/2099 dead transitions. [2022-12-13 20:27:13,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 2099 transitions, 80983 flow [2022-12-13 20:27:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:27:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:27:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1092 transitions. [2022-12-13 20:27:13,379 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49591280653950953 [2022-12-13 20:27:13,379 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1092 transitions. [2022-12-13 20:27:13,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1092 transitions. [2022-12-13 20:27:13,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:27:13,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1092 transitions. [2022-12-13 20:27:13,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:13,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:13,383 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 367.0) internal successors, (2569), 7 states have internal predecessors, (2569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:13,384 INFO L175 Difference]: Start difference. First operand has 394 places, 1196 transitions, 41782 flow. Second operand 6 states and 1092 transitions. [2022-12-13 20:27:13,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 2099 transitions, 80983 flow [2022-12-13 20:27:22,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 2099 transitions, 80615 flow, removed 184 selfloop flow, removed 0 redundant places. [2022-12-13 20:27:22,660 INFO L231 Difference]: Finished difference. Result has 404 places, 1733 transitions, 66707 flow [2022-12-13 20:27:22,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=41414, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=906, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=66707, PETRI_PLACES=404, PETRI_TRANSITIONS=1733} [2022-12-13 20:27:22,661 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 327 predicate places. [2022-12-13 20:27:22,662 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 1733 transitions, 66707 flow [2022-12-13 20:27:22,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:22,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:27:22,662 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:27:22,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:27:22,662 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:27:22,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:27:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1050270858, now seen corresponding path program 1 times [2022-12-13 20:27:22,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:27:22,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767020029] [2022-12-13 20:27:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:27:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:27:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:27:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:27:22,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:27:22,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767020029] [2022-12-13 20:27:22,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767020029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:27:22,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:27:22,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 20:27:22,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638176108] [2022-12-13 20:27:22,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:27:22,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:27:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:27:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:27:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:27:23,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 367 [2022-12-13 20:27:23,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 1733 transitions, 66707 flow. Second operand has 10 states, 10 states have (on average 148.5) internal successors, (1485), 10 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:23,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:27:23,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 367 [2022-12-13 20:27:23,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:27:37,409 INFO L130 PetriNetUnfolder]: 7855/18909 cut-off events. [2022-12-13 20:27:37,409 INFO L131 PetriNetUnfolder]: For 789788/790555 co-relation queries the response was YES. [2022-12-13 20:27:37,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161042 conditions, 18909 events. 7855/18909 cut-off events. For 789788/790555 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 188213 event pairs, 1779 based on Foata normal form. 252/18709 useless extension candidates. Maximal degree in co-relation 160884. Up to 11378 conditions per place. [2022-12-13 20:27:37,697 INFO L137 encePairwiseOnDemand]: 353/367 looper letters, 1232 selfloop transitions, 465 changer transitions 2/2005 dead transitions. [2022-12-13 20:27:37,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 2005 transitions, 77410 flow [2022-12-13 20:27:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 20:27:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 20:27:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2396 transitions. [2022-12-13 20:27:37,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4352406902815622 [2022-12-13 20:27:37,701 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2396 transitions. [2022-12-13 20:27:37,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2396 transitions. [2022-12-13 20:27:37,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:27:37,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2396 transitions. [2022-12-13 20:27:37,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 159.73333333333332) internal successors, (2396), 15 states have internal predecessors, (2396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:37,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 367.0) internal successors, (5872), 16 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:37,711 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 367.0) internal successors, (5872), 16 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:37,711 INFO L175 Difference]: Start difference. First operand has 404 places, 1733 transitions, 66707 flow. Second operand 15 states and 2396 transitions. [2022-12-13 20:27:37,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 2005 transitions, 77410 flow [2022-12-13 20:27:48,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 2005 transitions, 76648 flow, removed 381 selfloop flow, removed 0 redundant places. [2022-12-13 20:27:48,683 INFO L231 Difference]: Finished difference. Result has 422 places, 1819 transitions, 70437 flow [2022-12-13 20:27:48,684 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=65969, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=385, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=70437, PETRI_PLACES=422, PETRI_TRANSITIONS=1819} [2022-12-13 20:27:48,684 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 345 predicate places. [2022-12-13 20:27:48,684 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 1819 transitions, 70437 flow [2022-12-13 20:27:48,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.5) internal successors, (1485), 10 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:48,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:27:48,685 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:27:48,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:27:48,685 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:27:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:27:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 163196443, now seen corresponding path program 1 times [2022-12-13 20:27:48,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:27:48,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286255767] [2022-12-13 20:27:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:27:48,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:27:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:27:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:27:49,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:27:49,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286255767] [2022-12-13 20:27:49,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286255767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:27:49,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:27:49,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:27:49,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973478489] [2022-12-13 20:27:49,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:27:49,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:27:49,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:27:49,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:27:49,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:27:50,436 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:27:50,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 1819 transitions, 70437 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:27:50,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:27:50,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:27:50,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:05,481 INFO L130 PetriNetUnfolder]: 8358/20043 cut-off events. [2022-12-13 20:28:05,481 INFO L131 PetriNetUnfolder]: For 881470/881953 co-relation queries the response was YES. [2022-12-13 20:28:05,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174587 conditions, 20043 events. 8358/20043 cut-off events. For 881470/881953 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 199697 event pairs, 1891 based on Foata normal form. 54/19599 useless extension candidates. Maximal degree in co-relation 174424. Up to 11203 conditions per place. [2022-12-13 20:28:05,779 INFO L137 encePairwiseOnDemand]: 352/367 looper letters, 1441 selfloop transitions, 317 changer transitions 0/2146 dead transitions. [2022-12-13 20:28:05,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 2146 transitions, 82550 flow [2022-12-13 20:28:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:28:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:28:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2445 transitions. [2022-12-13 20:28:05,782 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.391889725917615 [2022-12-13 20:28:05,782 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2445 transitions. [2022-12-13 20:28:05,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2445 transitions. [2022-12-13 20:28:05,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:05,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2445 transitions. [2022-12-13 20:28:05,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 143.8235294117647) internal successors, (2445), 17 states have internal predecessors, (2445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:05,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:05,789 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:05,789 INFO L175 Difference]: Start difference. First operand has 422 places, 1819 transitions, 70437 flow. Second operand 17 states and 2445 transitions. [2022-12-13 20:28:05,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 2146 transitions, 82550 flow [2022-12-13 20:28:18,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 2146 transitions, 82473 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-12-13 20:28:18,800 INFO L231 Difference]: Finished difference. Result has 444 places, 1896 transitions, 73872 flow [2022-12-13 20:28:18,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=70360, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=250, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=73872, PETRI_PLACES=444, PETRI_TRANSITIONS=1896} [2022-12-13 20:28:18,801 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 367 predicate places. [2022-12-13 20:28:18,801 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 1896 transitions, 73872 flow [2022-12-13 20:28:18,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:18,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:18,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:18,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 20:28:18,802 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:28:18,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash 670653995, now seen corresponding path program 2 times [2022-12-13 20:28:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:18,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856483447] [2022-12-13 20:28:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:18,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:28:19,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:19,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856483447] [2022-12-13 20:28:19,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856483447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:19,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:19,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:28:19,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125117257] [2022-12-13 20:28:19,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:19,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:28:19,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:19,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:28:19,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:28:20,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:28:20,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1896 transitions, 73872 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:20,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:28:20,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:28:20,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:39,711 INFO L130 PetriNetUnfolder]: 10620/25379 cut-off events. [2022-12-13 20:28:39,711 INFO L131 PetriNetUnfolder]: For 1179510/1180502 co-relation queries the response was YES. [2022-12-13 20:28:40,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231622 conditions, 25379 events. 10620/25379 cut-off events. For 1179510/1180502 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 263083 event pairs, 1993 based on Foata normal form. 229/25090 useless extension candidates. Maximal degree in co-relation 231449. Up to 10159 conditions per place. [2022-12-13 20:28:40,121 INFO L137 encePairwiseOnDemand]: 351/367 looper letters, 2024 selfloop transitions, 273 changer transitions 0/2685 dead transitions. [2022-12-13 20:28:40,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 2685 transitions, 102220 flow [2022-12-13 20:28:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:28:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:28:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2464 transitions. [2022-12-13 20:28:40,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3949350857509216 [2022-12-13 20:28:40,124 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2464 transitions. [2022-12-13 20:28:40,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2464 transitions. [2022-12-13 20:28:40,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:40,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2464 transitions. [2022-12-13 20:28:40,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 144.94117647058823) internal successors, (2464), 17 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:40,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:40,130 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:40,130 INFO L175 Difference]: Start difference. First operand has 444 places, 1896 transitions, 73872 flow. Second operand 17 states and 2464 transitions. [2022-12-13 20:28:40,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 2685 transitions, 102220 flow [2022-12-13 20:28:58,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 2685 transitions, 102200 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-13 20:28:58,512 INFO L231 Difference]: Finished difference. Result has 472 places, 2082 transitions, 83145 flow [2022-12-13 20:28:58,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=73852, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=83145, PETRI_PLACES=472, PETRI_TRANSITIONS=2082} [2022-12-13 20:28:58,513 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 395 predicate places. [2022-12-13 20:28:58,513 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 2082 transitions, 83145 flow [2022-12-13 20:28:58,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:28:58,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:28:58,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:58,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:28:58,514 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:28:58,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:58,514 INFO L85 PathProgramCache]: Analyzing trace with hash -991979813, now seen corresponding path program 3 times [2022-12-13 20:28:58,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:58,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490531499] [2022-12-13 20:28:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:58,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:28:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:28:59,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:28:59,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490531499] [2022-12-13 20:28:59,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490531499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:28:59,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:28:59,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:28:59,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068786932] [2022-12-13 20:28:59,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:28:59,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:28:59,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:28:59,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:28:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:29:00,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:29:00,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 2082 transitions, 83145 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:00,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:29:00,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:29:00,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:29:27,195 INFO L130 PetriNetUnfolder]: 14486/34454 cut-off events. [2022-12-13 20:29:27,195 INFO L131 PetriNetUnfolder]: For 1599936/1600968 co-relation queries the response was YES. [2022-12-13 20:29:27,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313817 conditions, 34454 events. 14486/34454 cut-off events. For 1599936/1600968 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 374711 event pairs, 2199 based on Foata normal form. 157/33935 useless extension candidates. Maximal degree in co-relation 313630. Up to 14249 conditions per place. [2022-12-13 20:29:28,097 INFO L137 encePairwiseOnDemand]: 351/367 looper letters, 2367 selfloop transitions, 491 changer transitions 0/3246 dead transitions. [2022-12-13 20:29:28,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 3246 transitions, 130896 flow [2022-12-13 20:29:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:29:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 20:29:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2304 transitions. [2022-12-13 20:29:28,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3923705722070845 [2022-12-13 20:29:28,100 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2304 transitions. [2022-12-13 20:29:28,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2304 transitions. [2022-12-13 20:29:28,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:29:28,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2304 transitions. [2022-12-13 20:29:28,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 144.0) internal successors, (2304), 16 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:28,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 367.0) internal successors, (6239), 17 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:28,105 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 367.0) internal successors, (6239), 17 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:29:28,105 INFO L175 Difference]: Start difference. First operand has 472 places, 2082 transitions, 83145 flow. Second operand 16 states and 2304 transitions. [2022-12-13 20:29:28,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 3246 transitions, 130896 flow [2022-12-13 20:30:01,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 3246 transitions, 130762 flow, removed 62 selfloop flow, removed 1 redundant places. [2022-12-13 20:30:01,757 INFO L231 Difference]: Finished difference. Result has 497 places, 2445 transitions, 103231 flow [2022-12-13 20:30:01,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=83013, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2082, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=103231, PETRI_PLACES=497, PETRI_TRANSITIONS=2445} [2022-12-13 20:30:01,758 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 420 predicate places. [2022-12-13 20:30:01,758 INFO L495 AbstractCegarLoop]: Abstraction has has 497 places, 2445 transitions, 103231 flow [2022-12-13 20:30:01,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:01,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:30:01,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:30:01,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 20:30:01,759 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:30:01,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:30:01,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1326660129, now seen corresponding path program 4 times [2022-12-13 20:30:01,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:30:01,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242236852] [2022-12-13 20:30:01,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:30:01,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:30:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:30:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:30:02,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:30:02,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242236852] [2022-12-13 20:30:02,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242236852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:30:02,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:30:02,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:30:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815207327] [2022-12-13 20:30:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:30:02,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:30:02,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:30:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:30:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:30:03,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:30:03,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 2445 transitions, 103231 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:03,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:30:03,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:30:03,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:30:35,864 INFO L130 PetriNetUnfolder]: 14608/34507 cut-off events. [2022-12-13 20:30:35,864 INFO L131 PetriNetUnfolder]: For 1671696/1673056 co-relation queries the response was YES. [2022-12-13 20:30:36,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324361 conditions, 34507 events. 14608/34507 cut-off events. For 1671696/1673056 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 372207 event pairs, 3119 based on Foata normal form. 340/34121 useless extension candidates. Maximal degree in co-relation 324162. Up to 17462 conditions per place. [2022-12-13 20:30:36,689 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1323 selfloop transitions, 918 changer transitions 0/2629 dead transitions. [2022-12-13 20:30:36,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 2629 transitions, 112581 flow [2022-12-13 20:30:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:30:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 20:30:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2573 transitions. [2022-12-13 20:30:36,692 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38949439903118377 [2022-12-13 20:30:36,692 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2573 transitions. [2022-12-13 20:30:36,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2573 transitions. [2022-12-13 20:30:36,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:30:36,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2573 transitions. [2022-12-13 20:30:36,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 142.94444444444446) internal successors, (2573), 18 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:36,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:36,699 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 367.0) internal successors, (6973), 19 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:30:36,699 INFO L175 Difference]: Start difference. First operand has 497 places, 2445 transitions, 103231 flow. Second operand 18 states and 2573 transitions. [2022-12-13 20:30:36,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 2629 transitions, 112581 flow [2022-12-13 20:31:07,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 2629 transitions, 112222 flow, removed 161 selfloop flow, removed 2 redundant places. [2022-12-13 20:31:07,303 INFO L231 Difference]: Finished difference. Result has 518 places, 2479 transitions, 106040 flow [2022-12-13 20:31:07,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=102880, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=888, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=106040, PETRI_PLACES=518, PETRI_TRANSITIONS=2479} [2022-12-13 20:31:07,305 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 441 predicate places. [2022-12-13 20:31:07,305 INFO L495 AbstractCegarLoop]: Abstraction has has 518 places, 2479 transitions, 106040 flow [2022-12-13 20:31:07,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:07,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:31:07,305 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:07,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 20:31:07,305 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:31:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash -232595029, now seen corresponding path program 5 times [2022-12-13 20:31:07,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110968408] [2022-12-13 20:31:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:07,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110968408] [2022-12-13 20:31:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110968408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:07,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:31:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802280119] [2022-12-13 20:31:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:31:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:07,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:31:07,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:31:08,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:31:08,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 2479 transitions, 106040 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:08,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:31:08,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:31:08,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:31:42,105 INFO L130 PetriNetUnfolder]: 14615/34532 cut-off events. [2022-12-13 20:31:42,105 INFO L131 PetriNetUnfolder]: For 1737010/1738442 co-relation queries the response was YES. [2022-12-13 20:31:42,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329754 conditions, 34532 events. 14615/34532 cut-off events. For 1737010/1738442 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 372515 event pairs, 3110 based on Foata normal form. 359/34166 useless extension candidates. Maximal degree in co-relation 329549. Up to 17475 conditions per place. [2022-12-13 20:31:42,980 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1388 selfloop transitions, 856 changer transitions 0/2632 dead transitions. [2022-12-13 20:31:42,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 2632 transitions, 114443 flow [2022-12-13 20:31:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:31:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 20:31:42,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2434 transitions. [2022-12-13 20:31:42,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39012662285622696 [2022-12-13 20:31:42,984 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2434 transitions. [2022-12-13 20:31:42,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2434 transitions. [2022-12-13 20:31:42,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:31:42,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2434 transitions. [2022-12-13 20:31:42,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 143.1764705882353) internal successors, (2434), 17 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:42,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:42,989 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 367.0) internal successors, (6606), 18 states have internal predecessors, (6606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:31:42,989 INFO L175 Difference]: Start difference. First operand has 518 places, 2479 transitions, 106040 flow. Second operand 17 states and 2434 transitions. [2022-12-13 20:31:42,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 2632 transitions, 114443 flow [2022-12-13 20:32:14,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 2632 transitions, 113350 flow, removed 84 selfloop flow, removed 8 redundant places. [2022-12-13 20:32:15,056 INFO L231 Difference]: Finished difference. Result has 533 places, 2505 transitions, 107966 flow [2022-12-13 20:32:15,058 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=104950, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=831, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=107966, PETRI_PLACES=533, PETRI_TRANSITIONS=2505} [2022-12-13 20:32:15,058 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 456 predicate places. [2022-12-13 20:32:15,058 INFO L495 AbstractCegarLoop]: Abstraction has has 533 places, 2505 transitions, 107966 flow [2022-12-13 20:32:15,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:15,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:32:15,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:15,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 20:32:15,058 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:32:15,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1765135653, now seen corresponding path program 6 times [2022-12-13 20:32:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:32:15,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513544190] [2022-12-13 20:32:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:32:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:32:15,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:32:15,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513544190] [2022-12-13 20:32:15,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513544190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:15,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:15,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:32:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143071362] [2022-12-13 20:32:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:32:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:32:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:32:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:32:16,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:32:16,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 2505 transitions, 107966 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:16,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:32:16,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:32:16,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:32:52,277 INFO L130 PetriNetUnfolder]: 14627/34550 cut-off events. [2022-12-13 20:32:52,277 INFO L131 PetriNetUnfolder]: For 1816337/1817672 co-relation queries the response was YES. [2022-12-13 20:32:52,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334487 conditions, 34550 events. 14627/34550 cut-off events. For 1816337/1817672 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 372831 event pairs, 3120 based on Foata normal form. 328/34151 useless extension candidates. Maximal degree in co-relation 334275. Up to 17492 conditions per place. [2022-12-13 20:32:53,087 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1196 selfloop transitions, 1102 changer transitions 0/2686 dead transitions. [2022-12-13 20:32:53,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 2686 transitions, 117003 flow [2022-12-13 20:32:53,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:32:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-13 20:32:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2716 transitions. [2022-12-13 20:32:53,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3895023662698982 [2022-12-13 20:32:53,091 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2716 transitions. [2022-12-13 20:32:53,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2716 transitions. [2022-12-13 20:32:53,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:32:53,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2716 transitions. [2022-12-13 20:32:53,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 142.94736842105263) internal successors, (2716), 19 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:53,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 367.0) internal successors, (7340), 20 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:53,097 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 367.0) internal successors, (7340), 20 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:32:53,097 INFO L175 Difference]: Start difference. First operand has 533 places, 2505 transitions, 107966 flow. Second operand 19 states and 2716 transitions. [2022-12-13 20:32:53,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 2686 transitions, 117003 flow [2022-12-13 20:33:24,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 2686 transitions, 116557 flow, removed 127 selfloop flow, removed 5 redundant places. [2022-12-13 20:33:24,192 INFO L231 Difference]: Finished difference. Result has 551 places, 2516 transitions, 110205 flow [2022-12-13 20:33:24,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=107520, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1091, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=110205, PETRI_PLACES=551, PETRI_TRANSITIONS=2516} [2022-12-13 20:33:24,194 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 474 predicate places. [2022-12-13 20:33:24,194 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 2516 transitions, 110205 flow [2022-12-13 20:33:24,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:33:24,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:33:24,194 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:33:24,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 20:33:24,194 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:33:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:33:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash 594634731, now seen corresponding path program 7 times [2022-12-13 20:33:24,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:33:24,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860470498] [2022-12-13 20:33:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:33:24,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:33:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:33:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:33:24,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:33:24,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860470498] [2022-12-13 20:33:24,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860470498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:33:24,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:33:24,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:33:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531066168] [2022-12-13 20:33:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:33:24,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:33:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:33:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:33:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:33:25,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:33:25,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 2516 transitions, 110205 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:33:25,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:33:25,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:33:25,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:34:00,530 INFO L130 PetriNetUnfolder]: 14622/34540 cut-off events. [2022-12-13 20:34:00,530 INFO L131 PetriNetUnfolder]: For 1894260/1895614 co-relation queries the response was YES. [2022-12-13 20:34:01,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340921 conditions, 34540 events. 14622/34540 cut-off events. For 1894260/1895614 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 372598 event pairs, 3167 based on Foata normal form. 356/34177 useless extension candidates. Maximal degree in co-relation 340704. Up to 17478 conditions per place. [2022-12-13 20:34:01,379 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1200 selfloop transitions, 1115 changer transitions 0/2703 dead transitions. [2022-12-13 20:34:01,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 2703 transitions, 119586 flow [2022-12-13 20:34:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:34:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-13 20:34:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2856 transitions. [2022-12-13 20:34:01,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.38910081743869207 [2022-12-13 20:34:01,382 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2856 transitions. [2022-12-13 20:34:01,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2856 transitions. [2022-12-13 20:34:01,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:34:01,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2856 transitions. [2022-12-13 20:34:01,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 142.8) internal successors, (2856), 20 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:01,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 367.0) internal successors, (7707), 21 states have internal predecessors, (7707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:01,389 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 367.0) internal successors, (7707), 21 states have internal predecessors, (7707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:01,389 INFO L175 Difference]: Start difference. First operand has 551 places, 2516 transitions, 110205 flow. Second operand 20 states and 2856 transitions. [2022-12-13 20:34:01,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 2703 transitions, 119586 flow [2022-12-13 20:34:33,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 2703 transitions, 118842 flow, removed 37 selfloop flow, removed 10 redundant places. [2022-12-13 20:34:33,529 INFO L231 Difference]: Finished difference. Result has 565 places, 2530 transitions, 112588 flow [2022-12-13 20:34:33,530 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=109461, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=112588, PETRI_PLACES=565, PETRI_TRANSITIONS=2530} [2022-12-13 20:34:33,530 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 488 predicate places. [2022-12-13 20:34:33,530 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 2530 transitions, 112588 flow [2022-12-13 20:34:33,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:33,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:34:33,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:34:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 20:34:33,531 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:34:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:34:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1205554349, now seen corresponding path program 8 times [2022-12-13 20:34:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:34:33,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918974068] [2022-12-13 20:34:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:34:33,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:34:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:34:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:34:34,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:34:34,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918974068] [2022-12-13 20:34:34,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918974068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:34:34,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:34:34,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:34:34,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869049501] [2022-12-13 20:34:34,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:34:34,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:34:34,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:34:34,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:34:34,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:34:35,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:34:35,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 2530 transitions, 112588 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:34:35,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:34:35,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:34:35,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:35:12,894 INFO L130 PetriNetUnfolder]: 14638/34580 cut-off events. [2022-12-13 20:35:12,894 INFO L131 PetriNetUnfolder]: For 1985697/1987144 co-relation queries the response was YES. [2022-12-13 20:35:13,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348046 conditions, 34580 events. 14638/34580 cut-off events. For 1985697/1987144 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 373010 event pairs, 3115 based on Foata normal form. 362/34225 useless extension candidates. Maximal degree in co-relation 347824. Up to 17489 conditions per place. [2022-12-13 20:35:13,771 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1208 selfloop transitions, 1128 changer transitions 0/2724 dead transitions. [2022-12-13 20:35:13,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 2724 transitions, 122256 flow [2022-12-13 20:35:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:35:13,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-12-13 20:35:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3260 transitions. [2022-12-13 20:35:13,775 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3862101646724322 [2022-12-13 20:35:13,775 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3260 transitions. [2022-12-13 20:35:13,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3260 transitions. [2022-12-13 20:35:13,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:35:13,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3260 transitions. [2022-12-13 20:35:13,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 141.7391304347826) internal successors, (3260), 23 states have internal predecessors, (3260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:13,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 367.0) internal successors, (8808), 24 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:13,783 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 367.0) internal successors, (8808), 24 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:13,783 INFO L175 Difference]: Start difference. First operand has 565 places, 2530 transitions, 112588 flow. Second operand 23 states and 3260 transitions. [2022-12-13 20:35:13,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 2724 transitions, 122256 flow [2022-12-13 20:35:47,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 2724 transitions, 120534 flow, removed 85 selfloop flow, removed 13 redundant places. [2022-12-13 20:35:47,338 INFO L231 Difference]: Finished difference. Result has 581 places, 2545 transitions, 114269 flow [2022-12-13 20:35:47,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=110882, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=114269, PETRI_PLACES=581, PETRI_TRANSITIONS=2545} [2022-12-13 20:35:47,339 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 504 predicate places. [2022-12-13 20:35:47,340 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 2545 transitions, 114269 flow [2022-12-13 20:35:47,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:47,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:35:47,340 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:47,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 20:35:47,340 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-13 20:35:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:35:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1924125653, now seen corresponding path program 9 times [2022-12-13 20:35:47,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:35:47,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438184207] [2022-12-13 20:35:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:35:47,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:35:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:35:47,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:35:47,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:35:47,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438184207] [2022-12-13 20:35:47,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438184207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:35:47,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:35:47,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:35:47,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094354612] [2022-12-13 20:35:47,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:35:47,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:35:47,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:35:47,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:35:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:35:49,041 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 367 [2022-12-13 20:35:49,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 2545 transitions, 114269 flow. Second operand has 12 states, 12 states have (on average 133.58333333333334) internal successors, (1603), 12 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:35:49,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:35:49,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 367 [2022-12-13 20:35:49,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:36:27,184 INFO L130 PetriNetUnfolder]: 14662/34633 cut-off events. [2022-12-13 20:36:27,184 INFO L131 PetriNetUnfolder]: For 2069648/2071015 co-relation queries the response was YES. [2022-12-13 20:36:27,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352786 conditions, 34633 events. 14662/34633 cut-off events. For 2069648/2071015 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 373841 event pairs, 3109 based on Foata normal form. 345/34261 useless extension candidates. Maximal degree in co-relation 352557. Up to 17529 conditions per place. [2022-12-13 20:36:28,063 INFO L137 encePairwiseOnDemand]: 349/367 looper letters, 1359 selfloop transitions, 965 changer transitions 0/2712 dead transitions. [2022-12-13 20:36:28,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 2712 transitions, 123259 flow [2022-12-13 20:36:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 20:36:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 20:36:28,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2979 transitions. [2022-12-13 20:36:28,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3865317244063838 [2022-12-13 20:36:28,067 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2979 transitions. [2022-12-13 20:36:28,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2979 transitions. [2022-12-13 20:36:28,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:36:28,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2979 transitions. [2022-12-13 20:36:28,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 141.85714285714286) internal successors, (2979), 21 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:36:28,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 367.0) internal successors, (8074), 22 states have internal predecessors, (8074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:36:28,077 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 367.0) internal successors, (8074), 22 states have internal predecessors, (8074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:36:28,077 INFO L175 Difference]: Start difference. First operand has 581 places, 2545 transitions, 114269 flow. Second operand 21 states and 2979 transitions. [2022-12-13 20:36:28,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 2712 transitions, 123259 flow