./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 a79fe9fcfc95192d454ac05616e4d9a71dbf2bcc8b4fd9d21dcef47910a50542 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:56:42,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:56:42,851 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:56:42,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:56:42,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:56:42,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:56:42,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:56:42,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:56:42,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:56:42,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:56:42,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:56:42,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:56:42,909 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:56:42,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:56:42,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:56:42,911 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:56:42,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:56:42,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:56:42,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:56:42,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:56:42,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:56:42,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:56:42,915 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:56:42,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:56:42,916 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:56:42,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:56:42,917 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:56:42,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:56:42,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:56:42,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:56:42,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:42,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:56:42,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:56:42,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:56:42,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:56:42,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:56:42,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:56:42,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:56:42,921 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:56:42,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:56:42,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:56:42,922 INFO L153 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_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a79fe9fcfc95192d454ac05616e4d9a71dbf2bcc8b4fd9d21dcef47910a50542 [2023-11-26 11:56:43,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:56:43,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:56:43,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:56:43,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:56:43,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:56:43,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2023-11-26 11:56:46,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:56:46,623 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:56:46,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2023-11-26 11:56:46,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/data/5c753f4e4/42a73eb4008645a7bcda747c1bdbbb57/FLAGaffbb99a9 [2023-11-26 11:56:46,659 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/data/5c753f4e4/42a73eb4008645a7bcda747c1bdbbb57 [2023-11-26 11:56:46,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:56:46,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:56:46,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:46,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:56:46,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:56:46,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:46" (1/1) ... [2023-11-26 11:56:46,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1885b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:46, skipping insertion in model container [2023-11-26 11:56:46,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:46" (1/1) ... [2023-11-26 11:56:46,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:56:46,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:47,003 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:56:47,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:47,069 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:47,069 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:47,077 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:56:47,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47 WrapperNode [2023-11-26 11:56:47,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:47,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:47,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:56:47,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:56:47,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,183 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 659 [2023-11-26 11:56:47,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:47,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:56:47,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:56:47,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:56:47,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:56:47,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:56:47,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:56:47,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:56:47,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (1/1) ... [2023-11-26 11:56:47,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:47,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:47,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8305441-51af-4049-b453-42830eb7d6f2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:56:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:56:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:56:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:56:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:56:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:56:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:56:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:56:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:56:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:56:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:56:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 11:56:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 11:56:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:56:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:56:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:56:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:56:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:56:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:56:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:56:47,411 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:56:47,692 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:56:47,695 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:56:48,874 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:56:49,684 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:56:49,685 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 11:56:49,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:49 BoogieIcfgContainer [2023-11-26 11:56:49,687 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:56:49,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:56:49,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:56:49,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:56:49,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:56:46" (1/3) ... [2023-11-26 11:56:49,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ed5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:49, skipping insertion in model container [2023-11-26 11:56:49,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:47" (2/3) ... [2023-11-26 11:56:49,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ed5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:49, skipping insertion in model container [2023-11-26 11:56:49,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:49" (3/3) ... [2023-11-26 11:56:49,701 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2023-11-26 11:56:49,713 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:56:49,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:56:49,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2023-11-26 11:56:49,726 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:56:49,933 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 11:56:50,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 481 transitions, 990 flow [2023-11-26 11:56:50,269 INFO L124 PetriNetUnfolderBase]: 23/477 cut-off events. [2023-11-26 11:56:50,269 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:56:50,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 477 events. 23/477 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 657 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 388. Up to 2 conditions per place. [2023-11-26 11:56:50,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 481 transitions, 990 flow [2023-11-26 11:56:50,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 443 places, 452 transitions, 928 flow [2023-11-26 11:56:50,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:56:50,325 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=LoopHeads, 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;@56b06974, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:56:50,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2023-11-26 11:56:50,337 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:56:50,337 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-11-26 11:56:50,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:50,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:50,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:50,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:50,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:50,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1484785654, now seen corresponding path program 1 times [2023-11-26 11:56:50,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:50,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704197188] [2023-11-26 11:56:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:50,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:50,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:50,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704197188] [2023-11-26 11:56:50,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704197188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:50,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:50,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140336734] [2023-11-26 11:56:50,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:50,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:50,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 481 [2023-11-26 11:56:50,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 452 transitions, 928 flow. Second operand has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:50,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:50,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 481 [2023-11-26 11:56:50,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:51,499 INFO L124 PetriNetUnfolderBase]: 454/1281 cut-off events. [2023-11-26 11:56:51,500 INFO L125 PetriNetUnfolderBase]: For 166/273 co-relation queries the response was YES. [2023-11-26 11:56:51,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2022 conditions, 1281 events. 454/1281 cut-off events. For 166/273 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5544 event pairs, 272 based on Foata normal form. 184/1310 useless extension candidates. Maximal degree in co-relation 1562. Up to 614 conditions per place. [2023-11-26 11:56:51,518 INFO L140 encePairwiseOnDemand]: 396/481 looper letters, 25 selfloop transitions, 2 changer transitions 6/369 dead transitions. [2023-11-26 11:56:51,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 369 transitions, 816 flow [2023-11-26 11:56:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1214 transitions. [2023-11-26 11:56:51,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8413028413028413 [2023-11-26 11:56:51,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1214 transitions. [2023-11-26 11:56:51,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1214 transitions. [2023-11-26 11:56:51,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:51,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1214 transitions. [2023-11-26 11:56:51,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,575 INFO L175 Difference]: Start difference. First operand has 443 places, 452 transitions, 928 flow. Second operand 3 states and 1214 transitions. [2023-11-26 11:56:51,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 369 transitions, 816 flow [2023-11-26 11:56:51,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 369 transitions, 800 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-26 11:56:51,598 INFO L231 Difference]: Finished difference. Result has 366 places, 363 transitions, 738 flow [2023-11-26 11:56:51,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=366, PETRI_TRANSITIONS=363} [2023-11-26 11:56:51,608 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -77 predicate places. [2023-11-26 11:56:51,608 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 363 transitions, 738 flow [2023-11-26 11:56:51,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:51,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:51,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:56:51,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:51,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash 542791784, now seen corresponding path program 1 times [2023-11-26 11:56:51,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902371452] [2023-11-26 11:56:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:51,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:51,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902371452] [2023-11-26 11:56:51,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902371452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:51,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:51,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81256479] [2023-11-26 11:56:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:51,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:51,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:51,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:51,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:51,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 481 [2023-11-26 11:56:51,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 363 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:51,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 481 [2023-11-26 11:56:51,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:52,427 INFO L124 PetriNetUnfolderBase]: 454/1274 cut-off events. [2023-11-26 11:56:52,427 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:52,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1934 conditions, 1274 events. 454/1274 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5550 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1894. Up to 614 conditions per place. [2023-11-26 11:56:52,442 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 25 selfloop transitions, 2 changer transitions 0/362 dead transitions. [2023-11-26 11:56:52,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 362 transitions, 790 flow [2023-11-26 11:56:52,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:52,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1132 transitions. [2023-11-26 11:56:52,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7844767844767845 [2023-11-26 11:56:52,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1132 transitions. [2023-11-26 11:56:52,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1132 transitions. [2023-11-26 11:56:52,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:52,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1132 transitions. [2023-11-26 11:56:52,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,459 INFO L175 Difference]: Start difference. First operand has 366 places, 363 transitions, 738 flow. Second operand 3 states and 1132 transitions. [2023-11-26 11:56:52,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 362 transitions, 790 flow [2023-11-26 11:56:52,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 362 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:52,475 INFO L231 Difference]: Finished difference. Result has 359 places, 362 transitions, 736 flow [2023-11-26 11:56:52,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=359, PETRI_TRANSITIONS=362} [2023-11-26 11:56:52,478 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -84 predicate places. [2023-11-26 11:56:52,478 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 362 transitions, 736 flow [2023-11-26 11:56:52,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:52,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:52,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:56:52,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:52,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:52,488 INFO L85 PathProgramCache]: Analyzing trace with hash -597026870, now seen corresponding path program 1 times [2023-11-26 11:56:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:52,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041504492] [2023-11-26 11:56:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:52,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041504492] [2023-11-26 11:56:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041504492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:52,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076376219] [2023-11-26 11:56:52,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:52,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:52,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:52,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:52,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:52,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 362 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:52,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:52,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:53,200 INFO L124 PetriNetUnfolderBase]: 454/1273 cut-off events. [2023-11-26 11:56:53,201 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:53,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1273 events. 454/1273 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5556 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1884. Up to 613 conditions per place. [2023-11-26 11:56:53,214 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2023-11-26 11:56:53,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 361 transitions, 786 flow [2023-11-26 11:56:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:53,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:53,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:53,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,232 INFO L175 Difference]: Start difference. First operand has 359 places, 362 transitions, 736 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:53,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 361 transitions, 786 flow [2023-11-26 11:56:53,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 361 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:53,243 INFO L231 Difference]: Finished difference. Result has 358 places, 361 transitions, 734 flow [2023-11-26 11:56:53,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=358, PETRI_TRANSITIONS=361} [2023-11-26 11:56:53,246 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -85 predicate places. [2023-11-26 11:56:53,246 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 361 transitions, 734 flow [2023-11-26 11:56:53,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:53,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:53,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:56:53,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:53,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1091206058, now seen corresponding path program 1 times [2023-11-26 11:56:53,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345603094] [2023-11-26 11:56:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:53,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:53,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345603094] [2023-11-26 11:56:53,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345603094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:53,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:53,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:53,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641111670] [2023-11-26 11:56:53,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:53,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:53,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:53,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:53,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 361 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:53,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:53,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:53,759 INFO L124 PetriNetUnfolderBase]: 454/1272 cut-off events. [2023-11-26 11:56:53,759 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:53,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 1272 events. 454/1272 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5538 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1875. Up to 613 conditions per place. [2023-11-26 11:56:53,784 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2023-11-26 11:56:53,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 360 transitions, 784 flow [2023-11-26 11:56:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:53,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:53,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:53,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:53,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,803 INFO L175 Difference]: Start difference. First operand has 358 places, 361 transitions, 734 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:53,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 360 transitions, 784 flow [2023-11-26 11:56:53,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 360 transitions, 780 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:53,813 INFO L231 Difference]: Finished difference. Result has 357 places, 360 transitions, 732 flow [2023-11-26 11:56:53,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=357, PETRI_TRANSITIONS=360} [2023-11-26 11:56:53,816 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -86 predicate places. [2023-11-26 11:56:53,816 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 360 transitions, 732 flow [2023-11-26 11:56:53,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:53,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:53,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:56:53,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:53,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,819 INFO L85 PathProgramCache]: Analyzing trace with hash -303776420, now seen corresponding path program 1 times [2023-11-26 11:56:53,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498667397] [2023-11-26 11:56:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:53,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:53,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498667397] [2023-11-26 11:56:53,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498667397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:53,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:53,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501988393] [2023-11-26 11:56:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:53,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:53,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:53,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:53,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 360 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:53,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:53,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:54,355 INFO L124 PetriNetUnfolderBase]: 454/1271 cut-off events. [2023-11-26 11:56:54,355 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:54,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1930 conditions, 1271 events. 454/1271 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5583 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1866. Up to 613 conditions per place. [2023-11-26 11:56:54,369 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2023-11-26 11:56:54,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 359 transitions, 782 flow [2023-11-26 11:56:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:54,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:54,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:54,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:54,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,385 INFO L175 Difference]: Start difference. First operand has 357 places, 360 transitions, 732 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:54,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 359 transitions, 782 flow [2023-11-26 11:56:54,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 359 transitions, 778 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:54,399 INFO L231 Difference]: Finished difference. Result has 356 places, 359 transitions, 730 flow [2023-11-26 11:56:54,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=356, PETRI_TRANSITIONS=359} [2023-11-26 11:56:54,404 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -87 predicate places. [2023-11-26 11:56:54,404 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 359 transitions, 730 flow [2023-11-26 11:56:54,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:54,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:54,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:56:54,407 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:54,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 58033007, now seen corresponding path program 1 times [2023-11-26 11:56:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:54,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705595477] [2023-11-26 11:56:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705595477] [2023-11-26 11:56:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705595477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:54,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:54,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075653077] [2023-11-26 11:56:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:54,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:54,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:54,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 359 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:54,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:54,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:54,879 INFO L124 PetriNetUnfolderBase]: 454/1270 cut-off events. [2023-11-26 11:56:54,879 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:54,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 1270 events. 454/1270 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5571 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1857. Up to 613 conditions per place. [2023-11-26 11:56:54,893 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2023-11-26 11:56:54,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 358 transitions, 780 flow [2023-11-26 11:56:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:54,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:54,898 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:54,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:54,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,909 INFO L175 Difference]: Start difference. First operand has 356 places, 359 transitions, 730 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:54,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 358 transitions, 780 flow [2023-11-26 11:56:54,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 358 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:54,919 INFO L231 Difference]: Finished difference. Result has 355 places, 358 transitions, 728 flow [2023-11-26 11:56:54,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=355, PETRI_TRANSITIONS=358} [2023-11-26 11:56:54,921 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -88 predicate places. [2023-11-26 11:56:54,921 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 358 transitions, 728 flow [2023-11-26 11:56:54,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:54,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:54,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:56:54,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:54,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,924 INFO L85 PathProgramCache]: Analyzing trace with hash -162774750, now seen corresponding path program 1 times [2023-11-26 11:56:54,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:54,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192919580] [2023-11-26 11:56:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:54,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192919580] [2023-11-26 11:56:54,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192919580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:55,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:55,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:55,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077904371] [2023-11-26 11:56:55,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:55,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:55,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:55,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:55,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 358 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:55,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:55,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:55,440 INFO L124 PetriNetUnfolderBase]: 454/1269 cut-off events. [2023-11-26 11:56:55,441 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:55,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1269 events. 454/1269 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5523 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1848. Up to 613 conditions per place. [2023-11-26 11:56:55,457 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2023-11-26 11:56:55,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 357 transitions, 778 flow [2023-11-26 11:56:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:55,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:55,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:55,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:55,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:55,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:55,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:55,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,475 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,475 INFO L175 Difference]: Start difference. First operand has 355 places, 358 transitions, 728 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:55,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 357 transitions, 778 flow [2023-11-26 11:56:55,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 357 transitions, 774 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:55,485 INFO L231 Difference]: Finished difference. Result has 354 places, 357 transitions, 726 flow [2023-11-26 11:56:55,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=354, PETRI_TRANSITIONS=357} [2023-11-26 11:56:55,487 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -89 predicate places. [2023-11-26 11:56:55,487 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 357 transitions, 726 flow [2023-11-26 11:56:55,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:55,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:55,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:56:55,489 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:55,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:55,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1870482071, now seen corresponding path program 1 times [2023-11-26 11:56:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:55,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048089300] [2023-11-26 11:56:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:55,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:55,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:55,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048089300] [2023-11-26 11:56:55,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048089300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:55,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:55,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:55,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815661597] [2023-11-26 11:56:55,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:55,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:55,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:55,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:55,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:55,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 357 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:55,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:55,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:56,026 INFO L124 PetriNetUnfolderBase]: 454/1268 cut-off events. [2023-11-26 11:56:56,026 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:56,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 1268 events. 454/1268 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5549 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1839. Up to 613 conditions per place. [2023-11-26 11:56:56,038 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/356 dead transitions. [2023-11-26 11:56:56,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 356 transitions, 776 flow [2023-11-26 11:56:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:56,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:56,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:56,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:56,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,053 INFO L175 Difference]: Start difference. First operand has 354 places, 357 transitions, 726 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:56,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 356 transitions, 776 flow [2023-11-26 11:56:56,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 356 transitions, 772 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:56,062 INFO L231 Difference]: Finished difference. Result has 353 places, 356 transitions, 724 flow [2023-11-26 11:56:56,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=353, PETRI_TRANSITIONS=356} [2023-11-26 11:56:56,066 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -90 predicate places. [2023-11-26 11:56:56,066 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 356 transitions, 724 flow [2023-11-26 11:56:56,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:56,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:56,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:56:56,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:56,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:56,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1202293743, now seen corresponding path program 1 times [2023-11-26 11:56:56,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:56,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504870824] [2023-11-26 11:56:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:56,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:56,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504870824] [2023-11-26 11:56:56,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504870824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:56,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:56,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:56,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750097231] [2023-11-26 11:56:56,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:56,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:56,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:56,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:56,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:56,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 481 [2023-11-26 11:56:56,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 356 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:56,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 481 [2023-11-26 11:56:56,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:56,539 INFO L124 PetriNetUnfolderBase]: 454/1267 cut-off events. [2023-11-26 11:56:56,539 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:56,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 1267 events. 454/1267 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5531 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1830. Up to 613 conditions per place. [2023-11-26 11:56:56,552 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2023-11-26 11:56:56,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 355 transitions, 774 flow [2023-11-26 11:56:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-26 11:56:56,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7858627858627859 [2023-11-26 11:56:56,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:56,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-26 11:56:56,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,568 INFO L175 Difference]: Start difference. First operand has 353 places, 356 transitions, 724 flow. Second operand 3 states and 1134 transitions. [2023-11-26 11:56:56,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 355 transitions, 774 flow [2023-11-26 11:56:56,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 355 transitions, 770 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:56,578 INFO L231 Difference]: Finished difference. Result has 352 places, 355 transitions, 722 flow [2023-11-26 11:56:56,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=352, PETRI_TRANSITIONS=355} [2023-11-26 11:56:56,580 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:56:56,580 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 355 transitions, 722 flow [2023-11-26 11:56:56,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:56,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:56,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:56:56,582 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:56,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:56,583 INFO L85 PathProgramCache]: Analyzing trace with hash 79955681, now seen corresponding path program 1 times [2023-11-26 11:56:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508518625] [2023-11-26 11:56:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:56,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:56,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:56,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508518625] [2023-11-26 11:56:56,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508518625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:56,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:56,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120645264] [2023-11-26 11:56:56,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:56,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:56,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:56,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:56:56,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 355 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:56,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:56,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:56:56,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:57,025 INFO L124 PetriNetUnfolderBase]: 454/1266 cut-off events. [2023-11-26 11:56:57,025 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:57,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1266 events. 454/1266 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5520 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1818. Up to 610 conditions per place. [2023-11-26 11:56:57,038 INFO L140 encePairwiseOnDemand]: 479/481 looper letters, 22 selfloop transitions, 1 changer transitions 0/354 dead transitions. [2023-11-26 11:56:57,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 354 transitions, 766 flow [2023-11-26 11:56:57,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2023-11-26 11:56:57,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2023-11-26 11:56:57,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2023-11-26 11:56:57,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2023-11-26 11:56:57,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:57,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2023-11-26 11:56:57,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,054 INFO L175 Difference]: Start difference. First operand has 352 places, 355 transitions, 722 flow. Second operand 3 states and 1143 transitions. [2023-11-26 11:56:57,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 354 transitions, 766 flow [2023-11-26 11:56:57,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 354 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:57,063 INFO L231 Difference]: Finished difference. Result has 351 places, 354 transitions, 718 flow [2023-11-26 11:56:57,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=351, PETRI_TRANSITIONS=354} [2023-11-26 11:56:57,065 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -92 predicate places. [2023-11-26 11:56:57,065 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 354 transitions, 718 flow [2023-11-26 11:56:57,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:57,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:57,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:56:57,067 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:57,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:57,068 INFO L85 PathProgramCache]: Analyzing trace with hash 286214993, now seen corresponding path program 1 times [2023-11-26 11:56:57,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281145480] [2023-11-26 11:56:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:57,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:57,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:57,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281145480] [2023-11-26 11:56:57,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281145480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:57,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:57,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:57,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599364391] [2023-11-26 11:56:57,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:57,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:57,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:57,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:57,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 481 [2023-11-26 11:56:57,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 354 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:57,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 481 [2023-11-26 11:56:57,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:57,515 INFO L124 PetriNetUnfolderBase]: 454/1265 cut-off events. [2023-11-26 11:56:57,515 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:56:57,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1265 events. 454/1265 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5516 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1818. Up to 612 conditions per place. [2023-11-26 11:56:57,527 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 23 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2023-11-26 11:56:57,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 353 transitions, 766 flow [2023-11-26 11:56:57,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:57,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-26 11:56:57,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7872487872487872 [2023-11-26 11:56:57,532 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-26 11:56:57,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-26 11:56:57,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:57,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-26 11:56:57,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,541 INFO L175 Difference]: Start difference. First operand has 351 places, 354 transitions, 718 flow. Second operand 3 states and 1136 transitions. [2023-11-26 11:56:57,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 353 transitions, 766 flow [2023-11-26 11:56:57,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 353 transitions, 765 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:57,550 INFO L231 Difference]: Finished difference. Result has 351 places, 353 transitions, 719 flow [2023-11-26 11:56:57,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=719, PETRI_PLACES=351, PETRI_TRANSITIONS=353} [2023-11-26 11:56:57,551 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -92 predicate places. [2023-11-26 11:56:57,552 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 353 transitions, 719 flow [2023-11-26 11:56:57,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:57,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:57,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:57,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:56:57,553 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:56:57,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:57,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1144142211, now seen corresponding path program 1 times [2023-11-26 11:56:57,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:57,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359883668] [2023-11-26 11:56:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:57,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:58,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:58,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359883668] [2023-11-26 11:56:58,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359883668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:58,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:58,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563309341] [2023-11-26 11:56:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:58,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:58,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:58,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:58,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 481 [2023-11-26 11:56:58,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 353 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:58,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:58,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 481 [2023-11-26 11:56:58,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:00,207 INFO L124 PetriNetUnfolderBase]: 2158/3787 cut-off events. [2023-11-26 11:57:00,207 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-11-26 11:57:00,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6651 conditions, 3787 events. 2158/3787 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 18818 event pairs, 1408 based on Foata normal form. 0/3532 useless extension candidates. Maximal degree in co-relation 6548. Up to 2809 conditions per place. [2023-11-26 11:57:00,254 INFO L140 encePairwiseOnDemand]: 469/481 looper letters, 52 selfloop transitions, 10 changer transitions 0/351 dead transitions. [2023-11-26 11:57:00,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 351 transitions, 839 flow [2023-11-26 11:57:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:57:00,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2062 transitions. [2023-11-26 11:57:00,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7144837144837145 [2023-11-26 11:57:00,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2062 transitions. [2023-11-26 11:57:00,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2062 transitions. [2023-11-26 11:57:00,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:00,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2062 transitions. [2023-11-26 11:57:00,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.6666666666667) internal successors, (2062), 6 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,277 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,277 INFO L175 Difference]: Start difference. First operand has 351 places, 353 transitions, 719 flow. Second operand 6 states and 2062 transitions. [2023-11-26 11:57:00,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 351 transitions, 839 flow [2023-11-26 11:57:00,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 351 transitions, 835 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:00,288 INFO L231 Difference]: Finished difference. Result has 352 places, 351 transitions, 731 flow [2023-11-26 11:57:00,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=731, PETRI_PLACES=352, PETRI_TRANSITIONS=351} [2023-11-26 11:57:00,289 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:57:00,289 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 351 transitions, 731 flow [2023-11-26 11:57:00,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:00,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:57:00,291 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:00,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 447286980, now seen corresponding path program 1 times [2023-11-26 11:57:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087613605] [2023-11-26 11:57:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:00,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:00,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087613605] [2023-11-26 11:57:00,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087613605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:00,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:00,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:00,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060784597] [2023-11-26 11:57:00,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:00,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:00,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:00,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:00,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:00,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:00,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 351 transitions, 731 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:00,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:00,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:00,709 INFO L124 PetriNetUnfolderBase]: 454/1262 cut-off events. [2023-11-26 11:57:00,709 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:57:00,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 1262 events. 454/1262 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5519 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1894. Up to 610 conditions per place. [2023-11-26 11:57:00,721 INFO L140 encePairwiseOnDemand]: 479/481 looper letters, 22 selfloop transitions, 1 changer transitions 0/350 dead transitions. [2023-11-26 11:57:00,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 350 transitions, 775 flow [2023-11-26 11:57:00,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2023-11-26 11:57:00,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2023-11-26 11:57:00,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2023-11-26 11:57:00,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2023-11-26 11:57:00,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:00,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2023-11-26 11:57:00,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,736 INFO L175 Difference]: Start difference. First operand has 352 places, 351 transitions, 731 flow. Second operand 3 states and 1143 transitions. [2023-11-26 11:57:00,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 350 transitions, 775 flow [2023-11-26 11:57:00,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 350 transitions, 755 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:57:00,745 INFO L231 Difference]: Finished difference. Result has 348 places, 350 transitions, 711 flow [2023-11-26 11:57:00,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=711, PETRI_PLACES=348, PETRI_TRANSITIONS=350} [2023-11-26 11:57:00,748 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -95 predicate places. [2023-11-26 11:57:00,748 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 350 transitions, 711 flow [2023-11-26 11:57:00,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:00,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:00,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:57:00,749 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:00,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:00,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1480696496, now seen corresponding path program 1 times [2023-11-26 11:57:00,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:00,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208423559] [2023-11-26 11:57:00,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:00,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:00,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:00,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208423559] [2023-11-26 11:57:00,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208423559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:00,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:00,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996312498] [2023-11-26 11:57:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:00,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:00,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:00,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 481 [2023-11-26 11:57:00,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 350 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:00,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 481 [2023-11-26 11:57:00,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:01,289 INFO L124 PetriNetUnfolderBase]: 454/1261 cut-off events. [2023-11-26 11:57:01,290 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:57:01,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1261 events. 454/1261 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5536 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1815. Up to 612 conditions per place. [2023-11-26 11:57:01,300 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 23 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2023-11-26 11:57:01,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 349 transitions, 759 flow [2023-11-26 11:57:01,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-26 11:57:01,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7872487872487872 [2023-11-26 11:57:01,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-26 11:57:01,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-26 11:57:01,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:01,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-26 11:57:01,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,314 INFO L175 Difference]: Start difference. First operand has 348 places, 350 transitions, 711 flow. Second operand 3 states and 1136 transitions. [2023-11-26 11:57:01,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 349 transitions, 759 flow [2023-11-26 11:57:01,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 349 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:01,322 INFO L231 Difference]: Finished difference. Result has 348 places, 349 transitions, 712 flow [2023-11-26 11:57:01,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=348, PETRI_TRANSITIONS=349} [2023-11-26 11:57:01,324 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -95 predicate places. [2023-11-26 11:57:01,324 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 349 transitions, 712 flow [2023-11-26 11:57:01,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:01,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:01,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:57:01,325 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:01,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1083045887, now seen corresponding path program 1 times [2023-11-26 11:57:01,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:01,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149766426] [2023-11-26 11:57:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:01,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:01,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149766426] [2023-11-26 11:57:01,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149766426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:01,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:01,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:01,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117649705] [2023-11-26 11:57:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:01,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:01,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:01,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 481 [2023-11-26 11:57:01,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 349 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:01,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 481 [2023-11-26 11:57:01,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:01,775 INFO L124 PetriNetUnfolderBase]: 454/1259 cut-off events. [2023-11-26 11:57:01,776 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:57:01,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1259 events. 454/1259 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5533 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1815. Up to 612 conditions per place. [2023-11-26 11:57:01,787 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 1 changer transitions 0/347 dead transitions. [2023-11-26 11:57:01,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 347 transitions, 758 flow [2023-11-26 11:57:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:01,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-11-26 11:57:01,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7879417879417879 [2023-11-26 11:57:01,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-11-26 11:57:01,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-11-26 11:57:01,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:01,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-11-26 11:57:01,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,801 INFO L175 Difference]: Start difference. First operand has 348 places, 349 transitions, 712 flow. Second operand 3 states and 1137 transitions. [2023-11-26 11:57:01,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 347 transitions, 758 flow [2023-11-26 11:57:01,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 347 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:01,810 INFO L231 Difference]: Finished difference. Result has 346 places, 347 transitions, 706 flow [2023-11-26 11:57:01,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=346, PETRI_TRANSITIONS=347} [2023-11-26 11:57:01,813 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -97 predicate places. [2023-11-26 11:57:01,813 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 347 transitions, 706 flow [2023-11-26 11:57:01,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:01,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:01,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:57:01,815 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:01,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash -526186700, now seen corresponding path program 1 times [2023-11-26 11:57:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:01,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24505557] [2023-11-26 11:57:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:01,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:01,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24505557] [2023-11-26 11:57:01,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24505557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:01,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:01,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:01,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505917969] [2023-11-26 11:57:01,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:01,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:01,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:01,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:01,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:01,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:01,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:01,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:01,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:02,243 INFO L124 PetriNetUnfolderBase]: 454/1258 cut-off events. [2023-11-26 11:57:02,243 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:57:02,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 1258 events. 454/1258 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5489 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1811. Up to 610 conditions per place. [2023-11-26 11:57:02,255 INFO L140 encePairwiseOnDemand]: 479/481 looper letters, 22 selfloop transitions, 1 changer transitions 0/346 dead transitions. [2023-11-26 11:57:02,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 346 transitions, 750 flow [2023-11-26 11:57:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1143 transitions. [2023-11-26 11:57:02,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7920997920997921 [2023-11-26 11:57:02,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1143 transitions. [2023-11-26 11:57:02,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1143 transitions. [2023-11-26 11:57:02,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:02,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1143 transitions. [2023-11-26 11:57:02,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,271 INFO L175 Difference]: Start difference. First operand has 346 places, 347 transitions, 706 flow. Second operand 3 states and 1143 transitions. [2023-11-26 11:57:02,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 346 transitions, 750 flow [2023-11-26 11:57:02,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 346 transitions, 749 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:02,280 INFO L231 Difference]: Finished difference. Result has 346 places, 346 transitions, 705 flow [2023-11-26 11:57:02,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=346, PETRI_TRANSITIONS=346} [2023-11-26 11:57:02,281 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -97 predicate places. [2023-11-26 11:57:02,282 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 346 transitions, 705 flow [2023-11-26 11:57:02,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:02,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:02,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:57:02,285 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:02,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1140791508, now seen corresponding path program 1 times [2023-11-26 11:57:02,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:02,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498366034] [2023-11-26 11:57:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:02,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:02,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498366034] [2023-11-26 11:57:02,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498366034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:02,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:02,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193495697] [2023-11-26 11:57:02,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:02,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:02,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 481 [2023-11-26 11:57:02,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 346 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:02,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 481 [2023-11-26 11:57:02,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:02,778 INFO L124 PetriNetUnfolderBase]: 454/1256 cut-off events. [2023-11-26 11:57:02,778 INFO L125 PetriNetUnfolderBase]: For 40/147 co-relation queries the response was YES. [2023-11-26 11:57:02,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1256 events. 454/1256 cut-off events. For 40/147 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5486 event pairs, 272 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1812. Up to 612 conditions per place. [2023-11-26 11:57:02,789 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 24 selfloop transitions, 1 changer transitions 0/344 dead transitions. [2023-11-26 11:57:02,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 344 transitions, 751 flow [2023-11-26 11:57:02,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-11-26 11:57:02,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7879417879417879 [2023-11-26 11:57:02,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-11-26 11:57:02,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-11-26 11:57:02,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:02,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-11-26 11:57:02,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,805 INFO L175 Difference]: Start difference. First operand has 346 places, 346 transitions, 705 flow. Second operand 3 states and 1137 transitions. [2023-11-26 11:57:02,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 344 transitions, 751 flow [2023-11-26 11:57:02,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 344 transitions, 750 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:02,814 INFO L231 Difference]: Finished difference. Result has 345 places, 344 transitions, 702 flow [2023-11-26 11:57:02,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=345, PETRI_TRANSITIONS=344} [2023-11-26 11:57:02,816 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -98 predicate places. [2023-11-26 11:57:02,816 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 344 transitions, 702 flow [2023-11-26 11:57:02,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:02,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:02,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:57:02,817 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:02,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash 607580420, now seen corresponding path program 1 times [2023-11-26 11:57:02,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:02,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15768016] [2023-11-26 11:57:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:02,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:02,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:02,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15768016] [2023-11-26 11:57:02,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15768016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:02,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:02,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:02,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709598714] [2023-11-26 11:57:02,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:02,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:02,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:02,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:02,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 344 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:02,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:02,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:02,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:03,753 INFO L124 PetriNetUnfolderBase]: 761/2076 cut-off events. [2023-11-26 11:57:03,753 INFO L125 PetriNetUnfolderBase]: For 68/259 co-relation queries the response was YES. [2023-11-26 11:57:03,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 2076 events. 761/2076 cut-off events. For 68/259 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11715 event pairs, 443 based on Foata normal form. 0/1835 useless extension candidates. Maximal degree in co-relation 3081. Up to 658 conditions per place. [2023-11-26 11:57:03,779 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 40 selfloop transitions, 2 changer transitions 0/362 dead transitions. [2023-11-26 11:57:03,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 362 transitions, 830 flow [2023-11-26 11:57:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2023-11-26 11:57:03,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8052668052668053 [2023-11-26 11:57:03,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1162 transitions. [2023-11-26 11:57:03,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1162 transitions. [2023-11-26 11:57:03,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:03,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1162 transitions. [2023-11-26 11:57:03,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,796 INFO L175 Difference]: Start difference. First operand has 345 places, 344 transitions, 702 flow. Second operand 3 states and 1162 transitions. [2023-11-26 11:57:03,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 362 transitions, 830 flow [2023-11-26 11:57:03,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 362 transitions, 829 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:03,809 INFO L231 Difference]: Finished difference. Result has 346 places, 344 transitions, 709 flow [2023-11-26 11:57:03,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=709, PETRI_PLACES=346, PETRI_TRANSITIONS=344} [2023-11-26 11:57:03,810 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -97 predicate places. [2023-11-26 11:57:03,811 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 344 transitions, 709 flow [2023-11-26 11:57:03,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:03,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:03,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:57:03,812 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:03,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -230701001, now seen corresponding path program 1 times [2023-11-26 11:57:03,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:03,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707030320] [2023-11-26 11:57:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:03,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707030320] [2023-11-26 11:57:03,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707030320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:03,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:03,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688896050] [2023-11-26 11:57:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:03,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:03,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:03,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:03,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:03,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 344 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:03,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:03,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:04,936 INFO L124 PetriNetUnfolderBase]: 1158/3346 cut-off events. [2023-11-26 11:57:04,936 INFO L125 PetriNetUnfolderBase]: For 293/578 co-relation queries the response was YES. [2023-11-26 11:57:04,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5263 conditions, 3346 events. 1158/3346 cut-off events. For 293/578 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 23221 event pairs, 502 based on Foata normal form. 0/2913 useless extension candidates. Maximal degree in co-relation 5158. Up to 841 conditions per place. [2023-11-26 11:57:04,971 INFO L140 encePairwiseOnDemand]: 477/481 looper letters, 41 selfloop transitions, 4 changer transitions 0/364 dead transitions. [2023-11-26 11:57:04,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 364 transitions, 852 flow [2023-11-26 11:57:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-11-26 11:57:04,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.805959805959806 [2023-11-26 11:57:04,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-11-26 11:57:04,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-11-26 11:57:04,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:04,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-11-26 11:57:04,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:04,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:04,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:04,985 INFO L175 Difference]: Start difference. First operand has 346 places, 344 transitions, 709 flow. Second operand 3 states and 1163 transitions. [2023-11-26 11:57:04,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 364 transitions, 852 flow [2023-11-26 11:57:04,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 364 transitions, 849 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:04,994 INFO L231 Difference]: Finished difference. Result has 348 places, 346 transitions, 737 flow [2023-11-26 11:57:04,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=348, PETRI_TRANSITIONS=346} [2023-11-26 11:57:04,996 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -95 predicate places. [2023-11-26 11:57:04,996 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 346 transitions, 737 flow [2023-11-26 11:57:04,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:04,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:04,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:04,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:57:04,997 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:04,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash -236383026, now seen corresponding path program 1 times [2023-11-26 11:57:04,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:04,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008360615] [2023-11-26 11:57:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:04,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:05,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008360615] [2023-11-26 11:57:05,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008360615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:05,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:05,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:05,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160264228] [2023-11-26 11:57:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:05,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:05,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:05,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 346 transitions, 737 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:05,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:05,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:05,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:06,600 INFO L124 PetriNetUnfolderBase]: 2007/5387 cut-off events. [2023-11-26 11:57:06,601 INFO L125 PetriNetUnfolderBase]: For 1850/2324 co-relation queries the response was YES. [2023-11-26 11:57:06,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9356 conditions, 5387 events. 2007/5387 cut-off events. For 1850/2324 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 42446 event pairs, 1125 based on Foata normal form. 0/4731 useless extension candidates. Maximal degree in co-relation 9250. Up to 1676 conditions per place. [2023-11-26 11:57:06,659 INFO L140 encePairwiseOnDemand]: 478/481 looper letters, 48 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2023-11-26 11:57:06,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 368 transitions, 915 flow [2023-11-26 11:57:06,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2023-11-26 11:57:06,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8052668052668053 [2023-11-26 11:57:06,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1162 transitions. [2023-11-26 11:57:06,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1162 transitions. [2023-11-26 11:57:06,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:06,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1162 transitions. [2023-11-26 11:57:06,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,673 INFO L175 Difference]: Start difference. First operand has 348 places, 346 transitions, 737 flow. Second operand 3 states and 1162 transitions. [2023-11-26 11:57:06,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 368 transitions, 915 flow [2023-11-26 11:57:06,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 368 transitions, 901 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:06,685 INFO L231 Difference]: Finished difference. Result has 348 places, 346 transitions, 737 flow [2023-11-26 11:57:06,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=348, PETRI_TRANSITIONS=346} [2023-11-26 11:57:06,686 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -95 predicate places. [2023-11-26 11:57:06,686 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 346 transitions, 737 flow [2023-11-26 11:57:06,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:06,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:06,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:57:06,688 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:06,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash 469234189, now seen corresponding path program 1 times [2023-11-26 11:57:06,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:06,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860242134] [2023-11-26 11:57:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:06,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:06,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:06,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860242134] [2023-11-26 11:57:06,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860242134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:06,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:06,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:06,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115394925] [2023-11-26 11:57:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:06,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:06,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:06,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:06,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:06,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 481 [2023-11-26 11:57:06,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 346 transitions, 737 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:06,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 481 [2023-11-26 11:57:06,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:08,984 INFO L124 PetriNetUnfolderBase]: 2826/7466 cut-off events. [2023-11-26 11:57:08,985 INFO L125 PetriNetUnfolderBase]: For 2199/2841 co-relation queries the response was YES. [2023-11-26 11:57:09,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13189 conditions, 7466 events. 2826/7466 cut-off events. For 2199/2841 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 63404 event pairs, 1117 based on Foata normal form. 0/6545 useless extension candidates. Maximal degree in co-relation 13082. Up to 2206 conditions per place. [2023-11-26 11:57:09,077 INFO L140 encePairwiseOnDemand]: 477/481 looper letters, 49 selfloop transitions, 4 changer transitions 0/370 dead transitions. [2023-11-26 11:57:09,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 370 transitions, 924 flow [2023-11-26 11:57:09,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:57:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:57:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-11-26 11:57:09,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.805959805959806 [2023-11-26 11:57:09,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-11-26 11:57:09,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-11-26 11:57:09,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:09,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-11-26 11:57:09,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:09,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:09,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 481.0) internal successors, (1924), 4 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:09,094 INFO L175 Difference]: Start difference. First operand has 348 places, 346 transitions, 737 flow. Second operand 3 states and 1163 transitions. [2023-11-26 11:57:09,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 370 transitions, 924 flow [2023-11-26 11:57:09,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 370 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:57:09,106 INFO L231 Difference]: Finished difference. Result has 350 places, 348 transitions, 765 flow [2023-11-26 11:57:09,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=350, PETRI_TRANSITIONS=348} [2023-11-26 11:57:09,107 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -93 predicate places. [2023-11-26 11:57:09,107 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 348 transitions, 765 flow [2023-11-26 11:57:09,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:09,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:09,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:09,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:57:09,109 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:09,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash -544965801, now seen corresponding path program 1 times [2023-11-26 11:57:09,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:09,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010521282] [2023-11-26 11:57:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:09,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010521282] [2023-11-26 11:57:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010521282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179292851] [2023-11-26 11:57:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:10,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:57:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:10,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:57:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:57:10,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 481 [2023-11-26 11:57:10,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 348 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:10,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:10,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 481 [2023-11-26 11:57:10,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:17,298 INFO L124 PetriNetUnfolderBase]: 12506/20782 cut-off events. [2023-11-26 11:57:17,298 INFO L125 PetriNetUnfolderBase]: For 14994/14994 co-relation queries the response was YES. [2023-11-26 11:57:17,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46897 conditions, 20782 events. 12506/20782 cut-off events. For 14994/14994 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 140926 event pairs, 1087 based on Foata normal form. 0/19905 useless extension candidates. Maximal degree in co-relation 46788. Up to 5963 conditions per place. [2023-11-26 11:57:17,525 INFO L140 encePairwiseOnDemand]: 476/481 looper letters, 119 selfloop transitions, 4 changer transitions 0/427 dead transitions. [2023-11-26 11:57:17,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 427 transitions, 1353 flow [2023-11-26 11:57:17,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:57:17,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2238 transitions. [2023-11-26 11:57:17,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7754677754677755 [2023-11-26 11:57:17,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2238 transitions. [2023-11-26 11:57:17,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2238 transitions. [2023-11-26 11:57:17,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:17,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2238 transitions. [2023-11-26 11:57:17,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 373.0) internal successors, (2238), 6 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,551 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,552 INFO L175 Difference]: Start difference. First operand has 350 places, 348 transitions, 765 flow. Second operand 6 states and 2238 transitions. [2023-11-26 11:57:17,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 427 transitions, 1353 flow [2023-11-26 11:57:17,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 427 transitions, 1321 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:17,578 INFO L231 Difference]: Finished difference. Result has 352 places, 347 transitions, 763 flow [2023-11-26 11:57:17,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=763, PETRI_PLACES=352, PETRI_TRANSITIONS=347} [2023-11-26 11:57:17,579 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:57:17,580 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 347 transitions, 763 flow [2023-11-26 11:57:17,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:17,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:17,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:57:17,582 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:17,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:17,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1994508143, now seen corresponding path program 1 times [2023-11-26 11:57:17,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:17,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699572764] [2023-11-26 11:57:17,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:17,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:18,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699572764] [2023-11-26 11:57:18,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699572764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:18,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960017709] [2023-11-26 11:57:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:18,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:57:18,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:18,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:57:18,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:57:19,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 481 [2023-11-26 11:57:19,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 347 transitions, 763 flow. Second operand has 6 states, 6 states have (on average 361.1666666666667) internal successors, (2167), 6 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:19,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:19,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 481 [2023-11-26 11:57:19,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:22,774 INFO L124 PetriNetUnfolderBase]: 5796/11636 cut-off events. [2023-11-26 11:57:22,774 INFO L125 PetriNetUnfolderBase]: For 6241/6663 co-relation queries the response was YES. [2023-11-26 11:57:22,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24106 conditions, 11636 events. 5796/11636 cut-off events. For 6241/6663 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 87486 event pairs, 1440 based on Foata normal form. 0/10742 useless extension candidates. Maximal degree in co-relation 23997. Up to 3534 conditions per place. [2023-11-26 11:57:22,944 INFO L140 encePairwiseOnDemand]: 476/481 looper letters, 103 selfloop transitions, 4 changer transitions 0/410 dead transitions. [2023-11-26 11:57:22,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 410 transitions, 1247 flow [2023-11-26 11:57:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:57:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2226 transitions. [2023-11-26 11:57:22,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7713097713097713 [2023-11-26 11:57:22,959 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2226 transitions. [2023-11-26 11:57:22,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2226 transitions. [2023-11-26 11:57:22,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:22,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2226 transitions. [2023-11-26 11:57:22,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 371.0) internal successors, (2226), 6 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:22,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:22,979 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:22,979 INFO L175 Difference]: Start difference. First operand has 352 places, 347 transitions, 763 flow. Second operand 6 states and 2226 transitions. [2023-11-26 11:57:22,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 410 transitions, 1247 flow [2023-11-26 11:57:22,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 410 transitions, 1240 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:57:22,993 INFO L231 Difference]: Finished difference. Result has 352 places, 346 transitions, 762 flow [2023-11-26 11:57:22,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=352, PETRI_TRANSITIONS=346} [2023-11-26 11:57:22,994 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:57:22,995 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 346 transitions, 762 flow [2023-11-26 11:57:22,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.1666666666667) internal successors, (2167), 6 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:22,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:22,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:22,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:57:22,996 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:22,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:22,997 INFO L85 PathProgramCache]: Analyzing trace with hash 310208869, now seen corresponding path program 1 times [2023-11-26 11:57:22,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95117554] [2023-11-26 11:57:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:22,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:24,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:24,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95117554] [2023-11-26 11:57:24,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95117554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:24,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:24,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:24,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179460670] [2023-11-26 11:57:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:24,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:57:24,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:57:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:57:24,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 481 [2023-11-26 11:57:24,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 346 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:24,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:24,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 481 [2023-11-26 11:57:24,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:26,918 INFO L124 PetriNetUnfolderBase]: 3636/8636 cut-off events. [2023-11-26 11:57:26,918 INFO L125 PetriNetUnfolderBase]: For 4291/4815 co-relation queries the response was YES. [2023-11-26 11:57:26,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17016 conditions, 8636 events. 3636/8636 cut-off events. For 4291/4815 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 70805 event pairs, 1530 based on Foata normal form. 0/7748 useless extension candidates. Maximal degree in co-relation 16907. Up to 3777 conditions per place. [2023-11-26 11:57:27,003 INFO L140 encePairwiseOnDemand]: 476/481 looper letters, 87 selfloop transitions, 4 changer transitions 0/393 dead transitions. [2023-11-26 11:57:27,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 393 transitions, 1166 flow [2023-11-26 11:57:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:57:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2214 transitions. [2023-11-26 11:57:27,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7671517671517671 [2023-11-26 11:57:27,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2214 transitions. [2023-11-26 11:57:27,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2214 transitions. [2023-11-26 11:57:27,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:27,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2214 transitions. [2023-11-26 11:57:27,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 369.0) internal successors, (2214), 6 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:27,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:27,030 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:27,031 INFO L175 Difference]: Start difference. First operand has 352 places, 346 transitions, 762 flow. Second operand 6 states and 2214 transitions. [2023-11-26 11:57:27,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 393 transitions, 1166 flow [2023-11-26 11:57:27,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 393 transitions, 1159 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:57:27,045 INFO L231 Difference]: Finished difference. Result has 352 places, 345 transitions, 761 flow [2023-11-26 11:57:27,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=761, PETRI_PLACES=352, PETRI_TRANSITIONS=345} [2023-11-26 11:57:27,046 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:57:27,047 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 345 transitions, 761 flow [2023-11-26 11:57:27,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:27,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:27,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:27,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 11:57:27,048 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:27,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:27,049 INFO L85 PathProgramCache]: Analyzing trace with hash 295540297, now seen corresponding path program 1 times [2023-11-26 11:57:27,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:27,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037194192] [2023-11-26 11:57:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:28,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:28,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037194192] [2023-11-26 11:57:28,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037194192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:28,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:28,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:28,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198103397] [2023-11-26 11:57:28,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:28,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:57:28,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:28,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:57:28,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:57:28,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 481 [2023-11-26 11:57:28,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 345 transitions, 761 flow. Second operand has 6 states, 6 states have (on average 361.8333333333333) internal successors, (2171), 6 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:28,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:28,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 481 [2023-11-26 11:57:28,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:30,980 INFO L124 PetriNetUnfolderBase]: 3006/7733 cut-off events. [2023-11-26 11:57:30,981 INFO L125 PetriNetUnfolderBase]: For 3471/4040 co-relation queries the response was YES. [2023-11-26 11:57:31,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 7733 events. 3006/7733 cut-off events. For 3471/4040 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 65974 event pairs, 1550 based on Foata normal form. 0/6897 useless extension candidates. Maximal degree in co-relation 14618. Up to 3849 conditions per place. [2023-11-26 11:57:31,052 INFO L140 encePairwiseOnDemand]: 476/481 looper letters, 63 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2023-11-26 11:57:31,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 368 transitions, 1005 flow [2023-11-26 11:57:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:31,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:57:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2202 transitions. [2023-11-26 11:57:31,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.762993762993763 [2023-11-26 11:57:31,060 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2202 transitions. [2023-11-26 11:57:31,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2202 transitions. [2023-11-26 11:57:31,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:31,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2202 transitions. [2023-11-26 11:57:31,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 367.0) internal successors, (2202), 6 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 481.0) internal successors, (3367), 7 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,074 INFO L175 Difference]: Start difference. First operand has 352 places, 345 transitions, 761 flow. Second operand 6 states and 2202 transitions. [2023-11-26 11:57:31,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 368 transitions, 1005 flow [2023-11-26 11:57:31,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 368 transitions, 998 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:57:31,086 INFO L231 Difference]: Finished difference. Result has 352 places, 344 transitions, 760 flow [2023-11-26 11:57:31,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=481, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=352, PETRI_TRANSITIONS=344} [2023-11-26 11:57:31,087 INFO L281 CegarLoopForPetriNet]: 443 programPoint places, -91 predicate places. [2023-11-26 11:57:31,087 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 344 transitions, 760 flow [2023-11-26 11:57:31,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.8333333333333) internal successors, (2171), 6 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:31,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:31,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:57:31,089 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-26 11:57:31,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:31,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1661277893, now seen corresponding path program 1 times [2023-11-26 11:57:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547005572] [2023-11-26 11:57:31,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:31,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:31,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547005572] [2023-11-26 11:57:31,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547005572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:31,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:31,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416931972] [2023-11-26 11:57:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:31,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:57:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:57:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:57:31,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 481 [2023-11-26 11:57:31,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 344 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:31,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 481 [2023-11-26 11:57:31,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand