./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.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_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/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_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/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_4824e880-50b8-4471-bf41-4cf5f8eafe6f/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 3855d6da0b439f4c6a497e897f140f408df8c7fd65e3042f0fafae1979048a3d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:04,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:05,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:49:05,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:05,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:05,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:05,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:05,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:05,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:05,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:05,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:05,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:05,082 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:05,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:05,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:05,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:05,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:05,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:05,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:05,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:05,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:05,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:05,090 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:49:05,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:05,091 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:05,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:05,092 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:05,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:05,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:05,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:05,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:05,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:05,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:05,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:05,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:05,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:05,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:05,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:05,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:05,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:05,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:05,100 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_4824e880-50b8-4471-bf41-4cf5f8eafe6f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3855d6da0b439f4c6a497e897f140f408df8c7fd65e3042f0fafae1979048a3d [2023-11-26 10:49:05,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:05,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:05,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:05,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:05,472 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:05,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2023-11-26 10:49:08,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:09,111 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:09,112 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2023-11-26 10:49:09,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/data/98be2354b/0ef686f9d44844888121364663c57a08/FLAG9931788f2 [2023-11-26 10:49:09,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/data/98be2354b/0ef686f9d44844888121364663c57a08 [2023-11-26 10:49:09,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:09,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:09,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:09,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:09,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:09,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f873f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09, skipping insertion in model container [2023-11-26 10:49:09,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,206 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:09,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:09,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:09,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:09,607 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:09,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09 WrapperNode [2023-11-26 10:49:09,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:09,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:09,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:09,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:09,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,716 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 878 [2023-11-26 10:49:09,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:09,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:09,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:09,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:09,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:09,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:09,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:09,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:09,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:09,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:09,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:09,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4824e880-50b8-4471-bf41-4cf5f8eafe6f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:49:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:49:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:49:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:49:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:49:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:49:09,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:49:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:49:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:49:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:49:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:49:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:49:09,939 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 10:49:10,213 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:10,215 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:11,723 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:11,750 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:11,750 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 10:49:11,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:11 BoogieIcfgContainer [2023-11-26 10:49:11,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:11,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:11,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:11,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:11,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:09" (1/3) ... [2023-11-26 10:49:11,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cee966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:11, skipping insertion in model container [2023-11-26 10:49:11,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09" (2/3) ... [2023-11-26 10:49:11,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cee966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:11, skipping insertion in model container [2023-11-26 10:49:11,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:11" (3/3) ... [2023-11-26 10:49:11,762 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2023-11-26 10:49:11,773 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:49:11,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:11,786 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2023-11-26 10:49:11,786 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:49:12,017 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:49:12,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1091 places, 1139 transitions, 2299 flow [2023-11-26 10:49:13,069 INFO L124 PetriNetUnfolderBase]: 58/1136 cut-off events. [2023-11-26 10:49:13,070 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:49:13,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 1136 events. 58/1136 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3936 event pairs, 0 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 857. Up to 2 conditions per place. [2023-11-26 10:49:13,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 1091 places, 1139 transitions, 2299 flow [2023-11-26 10:49:13,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1062 places, 1107 transitions, 2232 flow [2023-11-26 10:49:13,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:13,238 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;@5a0f8d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:13,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 286 error locations. [2023-11-26 10:49:13,248 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:49:13,248 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-26 10:49:13,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:13,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:13,250 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] [2023-11-26 10:49:13,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:13,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:13,259 INFO L85 PathProgramCache]: Analyzing trace with hash 505156041, now seen corresponding path program 1 times [2023-11-26 10:49:13,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:13,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108271751] [2023-11-26 10:49:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:13,713 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 10:49:13,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108271751] [2023-11-26 10:49:13,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108271751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:13,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:13,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045859790] [2023-11-26 10:49:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:13,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:13,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:13,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:13,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:13,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 1139 [2023-11-26 10:49:13,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1062 places, 1107 transitions, 2232 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:13,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:13,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 1139 [2023-11-26 10:49:13,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:20,570 INFO L124 PetriNetUnfolderBase]: 612/12448 cut-off events. [2023-11-26 10:49:20,570 INFO L125 PetriNetUnfolderBase]: For 72/84 co-relation queries the response was YES. [2023-11-26 10:49:21,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12733 conditions, 12448 events. 612/12448 cut-off events. For 72/84 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 126787 event pairs, 95 based on Foata normal form. 294/10095 useless extension candidates. Maximal degree in co-relation 12395. Up to 185 conditions per place. [2023-11-26 10:49:21,278 INFO L140 encePairwiseOnDemand]: 1118/1139 looper letters, 19 selfloop transitions, 2 changer transitions 2/1088 dead transitions. [2023-11-26 10:49:21,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1063 places, 1088 transitions, 2236 flow [2023-11-26 10:49:21,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3328 transitions. [2023-11-26 10:49:21,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9739537606087211 [2023-11-26 10:49:21,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3328 transitions. [2023-11-26 10:49:21,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3328 transitions. [2023-11-26 10:49:21,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:21,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3328 transitions. [2023-11-26 10:49:21,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 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 10:49:21,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:21,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:21,385 INFO L175 Difference]: Start difference. First operand has 1062 places, 1107 transitions, 2232 flow. Second operand 3 states and 3328 transitions. [2023-11-26 10:49:21,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1063 places, 1088 transitions, 2236 flow [2023-11-26 10:49:21,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1057 places, 1088 transitions, 2224 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 10:49:21,445 INFO L231 Difference]: Finished difference. Result has 1057 places, 1086 transitions, 2182 flow [2023-11-26 10:49:21,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2182, PETRI_DIFFERENCE_MINUEND_PLACES=1055, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1088, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1086, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2182, PETRI_PLACES=1057, PETRI_TRANSITIONS=1086} [2023-11-26 10:49:21,455 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -5 predicate places. [2023-11-26 10:49:21,456 INFO L495 AbstractCegarLoop]: Abstraction has has 1057 places, 1086 transitions, 2182 flow [2023-11-26 10:49:21,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:21,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:21,461 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] [2023-11-26 10:49:21,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:21,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:21,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1802626749, now seen corresponding path program 1 times [2023-11-26 10:49:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:21,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937377664] [2023-11-26 10:49:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:21,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:21,615 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 10:49:21,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:21,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937377664] [2023-11-26 10:49:21,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937377664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790271889] [2023-11-26 10:49:21,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:21,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:21,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:21,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:21,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 1139 [2023-11-26 10:49:21,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1057 places, 1086 transitions, 2182 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:21,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:21,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 1139 [2023-11-26 10:49:21,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:24,851 INFO L124 PetriNetUnfolderBase]: 226/4436 cut-off events. [2023-11-26 10:49:24,851 INFO L125 PetriNetUnfolderBase]: For 13/20 co-relation queries the response was YES. [2023-11-26 10:49:24,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4565 conditions, 4436 events. 226/4436 cut-off events. For 13/20 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 33405 event pairs, 45 based on Foata normal form. 0/3508 useless extension candidates. Maximal degree in co-relation 4524. Up to 110 conditions per place. [2023-11-26 10:49:25,057 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 19 selfloop transitions, 2 changer transitions 0/1085 dead transitions. [2023-11-26 10:49:25,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1056 places, 1085 transitions, 2222 flow [2023-11-26 10:49:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-26 10:49:25,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9686859818554288 [2023-11-26 10:49:25,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-26 10:49:25,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-26 10:49:25,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:25,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-26 10:49:25,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 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 10:49:25,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:25,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:25,102 INFO L175 Difference]: Start difference. First operand has 1057 places, 1086 transitions, 2182 flow. Second operand 3 states and 3310 transitions. [2023-11-26 10:49:25,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1056 places, 1085 transitions, 2222 flow [2023-11-26 10:49:25,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1054 places, 1085 transitions, 2218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:25,129 INFO L231 Difference]: Finished difference. Result has 1054 places, 1085 transitions, 2180 flow [2023-11-26 10:49:25,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2176, PETRI_DIFFERENCE_MINUEND_PLACES=1052, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1085, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1083, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2180, PETRI_PLACES=1054, PETRI_TRANSITIONS=1085} [2023-11-26 10:49:25,133 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -8 predicate places. [2023-11-26 10:49:25,133 INFO L495 AbstractCegarLoop]: Abstraction has has 1054 places, 1085 transitions, 2180 flow [2023-11-26 10:49:25,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:25,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:25,137 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] [2023-11-26 10:49:25,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:49:25,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:25,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:25,139 INFO L85 PathProgramCache]: Analyzing trace with hash -544571182, now seen corresponding path program 1 times [2023-11-26 10:49:25,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:25,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58710924] [2023-11-26 10:49:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:25,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:25,202 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 10:49:25,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:25,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58710924] [2023-11-26 10:49:25,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58710924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:25,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:25,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:25,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440726043] [2023-11-26 10:49:25,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:25,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:25,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:25,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:25,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 1139 [2023-11-26 10:49:25,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1054 places, 1085 transitions, 2180 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:25,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:25,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 1139 [2023-11-26 10:49:25,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:27,834 INFO L124 PetriNetUnfolderBase]: 240/3784 cut-off events. [2023-11-26 10:49:27,834 INFO L125 PetriNetUnfolderBase]: For 43/74 co-relation queries the response was YES. [2023-11-26 10:49:27,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 3784 events. 240/3784 cut-off events. For 43/74 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 28620 event pairs, 95 based on Foata normal form. 0/3018 useless extension candidates. Maximal degree in co-relation 3934. Up to 185 conditions per place. [2023-11-26 10:49:28,019 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 19 selfloop transitions, 2 changer transitions 0/1084 dead transitions. [2023-11-26 10:49:28,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1055 places, 1084 transitions, 2220 flow [2023-11-26 10:49:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-26 10:49:28,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9686859818554288 [2023-11-26 10:49:28,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-26 10:49:28,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-26 10:49:28,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:28,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-26 10:49:28,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 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 10:49:28,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:28,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:28,064 INFO L175 Difference]: Start difference. First operand has 1054 places, 1085 transitions, 2180 flow. Second operand 3 states and 3310 transitions. [2023-11-26 10:49:28,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1055 places, 1084 transitions, 2220 flow [2023-11-26 10:49:28,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1053 places, 1084 transitions, 2216 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:28,092 INFO L231 Difference]: Finished difference. Result has 1053 places, 1084 transitions, 2178 flow [2023-11-26 10:49:28,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2174, PETRI_DIFFERENCE_MINUEND_PLACES=1051, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1082, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2178, PETRI_PLACES=1053, PETRI_TRANSITIONS=1084} [2023-11-26 10:49:28,095 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -9 predicate places. [2023-11-26 10:49:28,096 INFO L495 AbstractCegarLoop]: Abstraction has has 1053 places, 1084 transitions, 2178 flow [2023-11-26 10:49:28,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:28,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:28,099 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] [2023-11-26 10:49:28,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:49:28,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:28,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1406718236, now seen corresponding path program 1 times [2023-11-26 10:49:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999586458] [2023-11-26 10:49:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:28,224 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 10:49:28,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:28,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999586458] [2023-11-26 10:49:28,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999586458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:28,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:28,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:28,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309932695] [2023-11-26 10:49:28,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:28,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:28,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:28,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 1139 [2023-11-26 10:49:28,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1053 places, 1084 transitions, 2178 flow. Second operand has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 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 10:49:28,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:28,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 1139 [2023-11-26 10:49:28,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:31,069 INFO L124 PetriNetUnfolderBase]: 245/5563 cut-off events. [2023-11-26 10:49:31,069 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:49:31,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5639 conditions, 5563 events. 245/5563 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 44358 event pairs, 16 based on Foata normal form. 0/4399 useless extension candidates. Maximal degree in co-relation 5582. Up to 51 conditions per place. [2023-11-26 10:49:31,356 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 18 selfloop transitions, 2 changer transitions 0/1083 dead transitions. [2023-11-26 10:49:31,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1054 places, 1083 transitions, 2216 flow [2023-11-26 10:49:31,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3312 transitions. [2023-11-26 10:49:31,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9692712906057945 [2023-11-26 10:49:31,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3312 transitions. [2023-11-26 10:49:31,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3312 transitions. [2023-11-26 10:49:31,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:31,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3312 transitions. [2023-11-26 10:49:31,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1104.0) internal successors, (3312), 3 states have internal predecessors, (3312), 0 states have call successors, (0), 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 10:49:31,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:31,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:31,414 INFO L175 Difference]: Start difference. First operand has 1053 places, 1084 transitions, 2178 flow. Second operand 3 states and 3312 transitions. [2023-11-26 10:49:31,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1054 places, 1083 transitions, 2216 flow [2023-11-26 10:49:31,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1052 places, 1083 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:31,452 INFO L231 Difference]: Finished difference. Result has 1052 places, 1083 transitions, 2176 flow [2023-11-26 10:49:31,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2172, PETRI_DIFFERENCE_MINUEND_PLACES=1050, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1083, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1081, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2176, PETRI_PLACES=1052, PETRI_TRANSITIONS=1083} [2023-11-26 10:49:31,455 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -10 predicate places. [2023-11-26 10:49:31,455 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1083 transitions, 2176 flow [2023-11-26 10:49:31,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 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 10:49:31,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:31,459 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] [2023-11-26 10:49:31,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:49:31,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:31,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash -871244408, now seen corresponding path program 1 times [2023-11-26 10:49:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:31,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147476003] [2023-11-26 10:49:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:31,591 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 10:49:31,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:31,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147476003] [2023-11-26 10:49:31,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147476003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:31,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:31,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951339257] [2023-11-26 10:49:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:31,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1100 out of 1139 [2023-11-26 10:49:31,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1083 transitions, 2176 flow. Second operand has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:31,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:31,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1100 of 1139 [2023-11-26 10:49:31,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:32,692 INFO L124 PetriNetUnfolderBase]: 73/1630 cut-off events. [2023-11-26 10:49:32,693 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:49:32,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 1630 events. 73/1630 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8296 event pairs, 12 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1626. Up to 40 conditions per place. [2023-11-26 10:49:32,772 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 15 selfloop transitions, 2 changer transitions 0/1082 dead transitions. [2023-11-26 10:49:32,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1053 places, 1082 transitions, 2208 flow [2023-11-26 10:49:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3318 transitions. [2023-11-26 10:49:32,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.971027216856892 [2023-11-26 10:49:32,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3318 transitions. [2023-11-26 10:49:32,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3318 transitions. [2023-11-26 10:49:32,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:32,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3318 transitions. [2023-11-26 10:49:32,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 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 10:49:32,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:32,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:32,808 INFO L175 Difference]: Start difference. First operand has 1052 places, 1083 transitions, 2176 flow. Second operand 3 states and 3318 transitions. [2023-11-26 10:49:32,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1053 places, 1082 transitions, 2208 flow [2023-11-26 10:49:32,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1051 places, 1082 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:32,833 INFO L231 Difference]: Finished difference. Result has 1051 places, 1082 transitions, 2174 flow [2023-11-26 10:49:32,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2170, PETRI_DIFFERENCE_MINUEND_PLACES=1049, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1082, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1080, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2174, PETRI_PLACES=1051, PETRI_TRANSITIONS=1082} [2023-11-26 10:49:32,836 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -11 predicate places. [2023-11-26 10:49:32,837 INFO L495 AbstractCegarLoop]: Abstraction has has 1051 places, 1082 transitions, 2174 flow [2023-11-26 10:49:32,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:32,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:32,839 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] [2023-11-26 10:49:32,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:49:32,839 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:32,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1351202698, now seen corresponding path program 1 times [2023-11-26 10:49:32,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:32,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792124642] [2023-11-26 10:49:32,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:32,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:32,890 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 10:49:32,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:32,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792124642] [2023-11-26 10:49:32,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792124642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:32,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:32,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:32,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385939253] [2023-11-26 10:49:32,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:32,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:32,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:32,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:32,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 1139 [2023-11-26 10:49:32,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1051 places, 1082 transitions, 2174 flow. Second operand has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:32,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:32,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 1139 [2023-11-26 10:49:32,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:34,821 INFO L124 PetriNetUnfolderBase]: 167/3881 cut-off events. [2023-11-26 10:49:34,821 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:49:34,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3935 conditions, 3881 events. 167/3881 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 26483 event pairs, 10 based on Foata normal form. 0/3083 useless extension candidates. Maximal degree in co-relation 3862. Up to 35 conditions per place. [2023-11-26 10:49:34,963 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 14 selfloop transitions, 2 changer transitions 0/1081 dead transitions. [2023-11-26 10:49:34,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1052 places, 1081 transitions, 2204 flow [2023-11-26 10:49:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3320 transitions. [2023-11-26 10:49:34,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9716125256072579 [2023-11-26 10:49:34,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3320 transitions. [2023-11-26 10:49:34,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3320 transitions. [2023-11-26 10:49:34,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:34,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3320 transitions. [2023-11-26 10:49:34,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.6666666666667) internal successors, (3320), 3 states have internal predecessors, (3320), 0 states have call successors, (0), 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 10:49:34,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:35,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:35,002 INFO L175 Difference]: Start difference. First operand has 1051 places, 1082 transitions, 2174 flow. Second operand 3 states and 3320 transitions. [2023-11-26 10:49:35,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1052 places, 1081 transitions, 2204 flow [2023-11-26 10:49:35,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1050 places, 1081 transitions, 2200 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:35,029 INFO L231 Difference]: Finished difference. Result has 1050 places, 1081 transitions, 2172 flow [2023-11-26 10:49:35,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=1048, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2172, PETRI_PLACES=1050, PETRI_TRANSITIONS=1081} [2023-11-26 10:49:35,032 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -12 predicate places. [2023-11-26 10:49:35,033 INFO L495 AbstractCegarLoop]: Abstraction has has 1050 places, 1081 transitions, 2172 flow [2023-11-26 10:49:35,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:35,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:35,035 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] [2023-11-26 10:49:35,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:49:35,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:35,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash 452865631, now seen corresponding path program 1 times [2023-11-26 10:49:35,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:35,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268736310] [2023-11-26 10:49:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:35,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:35,091 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 10:49:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:35,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268736310] [2023-11-26 10:49:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268736310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172471884] [2023-11-26 10:49:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:35,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:35,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:35,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1139 [2023-11-26 10:49:35,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1050 places, 1081 transitions, 2172 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:35,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:35,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1139 [2023-11-26 10:49:35,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:38,982 INFO L124 PetriNetUnfolderBase]: 349/7800 cut-off events. [2023-11-26 10:49:38,982 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:49:39,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7903 conditions, 7800 events. 349/7800 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 69387 event pairs, 24 based on Foata normal form. 0/6161 useless extension candidates. Maximal degree in co-relation 7822. Up to 70 conditions per place. [2023-11-26 10:49:39,392 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 21 selfloop transitions, 2 changer transitions 0/1080 dead transitions. [2023-11-26 10:49:39,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 1080 transitions, 2216 flow [2023-11-26 10:49:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-26 10:49:39,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9675153643546971 [2023-11-26 10:49:39,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-26 10:49:39,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-26 10:49:39,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:39,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-26 10:49:39,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 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 10:49:39,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:39,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:39,431 INFO L175 Difference]: Start difference. First operand has 1050 places, 1081 transitions, 2172 flow. Second operand 3 states and 3306 transitions. [2023-11-26 10:49:39,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1051 places, 1080 transitions, 2216 flow [2023-11-26 10:49:39,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1049 places, 1080 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:39,458 INFO L231 Difference]: Finished difference. Result has 1049 places, 1080 transitions, 2170 flow [2023-11-26 10:49:39,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=1047, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1080, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2170, PETRI_PLACES=1049, PETRI_TRANSITIONS=1080} [2023-11-26 10:49:39,461 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -13 predicate places. [2023-11-26 10:49:39,462 INFO L495 AbstractCegarLoop]: Abstraction has has 1049 places, 1080 transitions, 2170 flow [2023-11-26 10:49:39,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:39,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:39,463 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] [2023-11-26 10:49:39,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:49:39,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:39,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1271957725, now seen corresponding path program 1 times [2023-11-26 10:49:39,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:39,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25998368] [2023-11-26 10:49:39,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:39,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:39,562 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 10:49:39,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:39,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25998368] [2023-11-26 10:49:39,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25998368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:39,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:39,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610096289] [2023-11-26 10:49:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:39,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:39,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:39,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 1139 [2023-11-26 10:49:39,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1049 places, 1080 transitions, 2170 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:39,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:39,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 1139 [2023-11-26 10:49:39,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:41,742 INFO L124 PetriNetUnfolderBase]: 149/3415 cut-off events. [2023-11-26 10:49:41,742 INFO L125 PetriNetUnfolderBase]: For 11/32 co-relation queries the response was YES. [2023-11-26 10:49:41,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3484 conditions, 3415 events. 149/3415 cut-off events. For 11/32 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 22940 event pairs, 16 based on Foata normal form. 0/2724 useless extension candidates. Maximal degree in co-relation 3395. Up to 52 conditions per place. [2023-11-26 10:49:41,909 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 19 selfloop transitions, 2 changer transitions 0/1079 dead transitions. [2023-11-26 10:49:41,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1050 places, 1079 transitions, 2210 flow [2023-11-26 10:49:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-26 10:49:41,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9686859818554288 [2023-11-26 10:49:41,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-26 10:49:41,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-26 10:49:41,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:41,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-26 10:49:41,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 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 10:49:41,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:41,947 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:41,947 INFO L175 Difference]: Start difference. First operand has 1049 places, 1080 transitions, 2170 flow. Second operand 3 states and 3310 transitions. [2023-11-26 10:49:41,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1050 places, 1079 transitions, 2210 flow [2023-11-26 10:49:41,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1048 places, 1079 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:41,976 INFO L231 Difference]: Finished difference. Result has 1048 places, 1079 transitions, 2168 flow [2023-11-26 10:49:41,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2164, PETRI_DIFFERENCE_MINUEND_PLACES=1046, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2168, PETRI_PLACES=1048, PETRI_TRANSITIONS=1079} [2023-11-26 10:49:41,979 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -14 predicate places. [2023-11-26 10:49:41,979 INFO L495 AbstractCegarLoop]: Abstraction has has 1048 places, 1079 transitions, 2168 flow [2023-11-26 10:49:41,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:41,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:41,981 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] [2023-11-26 10:49:41,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:49:41,981 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:41,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1812713042, now seen corresponding path program 1 times [2023-11-26 10:49:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93352135] [2023-11-26 10:49:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:42,064 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 10:49:42,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:42,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93352135] [2023-11-26 10:49:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93352135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:42,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837188776] [2023-11-26 10:49:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:42,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:42,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1100 out of 1139 [2023-11-26 10:49:42,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 1079 transitions, 2168 flow. Second operand has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:42,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:42,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1100 of 1139 [2023-11-26 10:49:42,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:42,984 INFO L124 PetriNetUnfolderBase]: 73/1626 cut-off events. [2023-11-26 10:49:42,984 INFO L125 PetriNetUnfolderBase]: For 9/15 co-relation queries the response was YES. [2023-11-26 10:49:43,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1626 events. 73/1626 cut-off events. For 9/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7923 event pairs, 12 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1584. Up to 40 conditions per place. [2023-11-26 10:49:43,044 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 15 selfloop transitions, 2 changer transitions 0/1078 dead transitions. [2023-11-26 10:49:43,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1049 places, 1078 transitions, 2200 flow [2023-11-26 10:49:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3318 transitions. [2023-11-26 10:49:43,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.971027216856892 [2023-11-26 10:49:43,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3318 transitions. [2023-11-26 10:49:43,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3318 transitions. [2023-11-26 10:49:43,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:43,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3318 transitions. [2023-11-26 10:49:43,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 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 10:49:43,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:43,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:43,071 INFO L175 Difference]: Start difference. First operand has 1048 places, 1079 transitions, 2168 flow. Second operand 3 states and 3318 transitions. [2023-11-26 10:49:43,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1049 places, 1078 transitions, 2200 flow [2023-11-26 10:49:43,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1047 places, 1078 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:43,093 INFO L231 Difference]: Finished difference. Result has 1047 places, 1078 transitions, 2166 flow [2023-11-26 10:49:43,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2162, PETRI_DIFFERENCE_MINUEND_PLACES=1045, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1076, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2166, PETRI_PLACES=1047, PETRI_TRANSITIONS=1078} [2023-11-26 10:49:43,096 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -15 predicate places. [2023-11-26 10:49:43,096 INFO L495 AbstractCegarLoop]: Abstraction has has 1047 places, 1078 transitions, 2166 flow [2023-11-26 10:49:43,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:43,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:43,098 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] [2023-11-26 10:49:43,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:49:43,098 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:43,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1964301411, now seen corresponding path program 1 times [2023-11-26 10:49:43,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:43,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564515966] [2023-11-26 10:49:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:43,141 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 10:49:43,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:43,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564515966] [2023-11-26 10:49:43,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564515966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:43,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:43,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:43,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683113577] [2023-11-26 10:49:43,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:43,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:43,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:43,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 1139 [2023-11-26 10:49:43,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1047 places, 1078 transitions, 2166 flow. Second operand has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:43,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:43,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 1139 [2023-11-26 10:49:43,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:44,306 INFO L124 PetriNetUnfolderBase]: 107/2537 cut-off events. [2023-11-26 10:49:44,307 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-26 10:49:44,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2586 conditions, 2537 events. 107/2537 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14517 event pairs, 10 based on Foata normal form. 0/2036 useless extension candidates. Maximal degree in co-relation 2481. Up to 35 conditions per place. [2023-11-26 10:49:44,463 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 14 selfloop transitions, 2 changer transitions 0/1077 dead transitions. [2023-11-26 10:49:44,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 1077 transitions, 2196 flow [2023-11-26 10:49:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:44,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3320 transitions. [2023-11-26 10:49:44,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9716125256072579 [2023-11-26 10:49:44,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3320 transitions. [2023-11-26 10:49:44,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3320 transitions. [2023-11-26 10:49:44,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:44,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3320 transitions. [2023-11-26 10:49:44,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.6666666666667) internal successors, (3320), 3 states have internal predecessors, (3320), 0 states have call successors, (0), 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 10:49:44,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:44,493 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:44,493 INFO L175 Difference]: Start difference. First operand has 1047 places, 1078 transitions, 2166 flow. Second operand 3 states and 3320 transitions. [2023-11-26 10:49:44,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1048 places, 1077 transitions, 2196 flow [2023-11-26 10:49:44,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1046 places, 1077 transitions, 2192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:44,518 INFO L231 Difference]: Finished difference. Result has 1046 places, 1077 transitions, 2164 flow [2023-11-26 10:49:44,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2160, PETRI_DIFFERENCE_MINUEND_PLACES=1044, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2164, PETRI_PLACES=1046, PETRI_TRANSITIONS=1077} [2023-11-26 10:49:44,521 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -16 predicate places. [2023-11-26 10:49:44,521 INFO L495 AbstractCegarLoop]: Abstraction has has 1046 places, 1077 transitions, 2164 flow [2023-11-26 10:49:44,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:44,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:44,522 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] [2023-11-26 10:49:44,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:49:44,523 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:44,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2024058722, now seen corresponding path program 1 times [2023-11-26 10:49:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:44,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541962854] [2023-11-26 10:49:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:44,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:44,572 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 10:49:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541962854] [2023-11-26 10:49:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541962854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:44,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142145696] [2023-11-26 10:49:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:44,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:44,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1139 [2023-11-26 10:49:44,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1077 transitions, 2164 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:44,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:44,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1139 [2023-11-26 10:49:44,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:47,353 INFO L124 PetriNetUnfolderBase]: 205/4580 cut-off events. [2023-11-26 10:49:47,353 INFO L125 PetriNetUnfolderBase]: For 15/99 co-relation queries the response was YES. [2023-11-26 10:49:47,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4671 conditions, 4580 events. 205/4580 cut-off events. For 15/99 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 34614 event pairs, 24 based on Foata normal form. 0/3642 useless extension candidates. Maximal degree in co-relation 4558. Up to 70 conditions per place. [2023-11-26 10:49:47,827 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 21 selfloop transitions, 2 changer transitions 0/1076 dead transitions. [2023-11-26 10:49:47,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1047 places, 1076 transitions, 2208 flow [2023-11-26 10:49:47,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:47,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-26 10:49:47,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9675153643546971 [2023-11-26 10:49:47,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-26 10:49:47,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-26 10:49:47,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:47,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-26 10:49:47,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 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 10:49:47,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:47,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:47,857 INFO L175 Difference]: Start difference. First operand has 1046 places, 1077 transitions, 2164 flow. Second operand 3 states and 3306 transitions. [2023-11-26 10:49:47,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1047 places, 1076 transitions, 2208 flow [2023-11-26 10:49:47,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1045 places, 1076 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:47,882 INFO L231 Difference]: Finished difference. Result has 1045 places, 1076 transitions, 2162 flow [2023-11-26 10:49:47,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=1043, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2162, PETRI_PLACES=1045, PETRI_TRANSITIONS=1076} [2023-11-26 10:49:47,886 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -17 predicate places. [2023-11-26 10:49:47,886 INFO L495 AbstractCegarLoop]: Abstraction has has 1045 places, 1076 transitions, 2162 flow [2023-11-26 10:49:47,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:47,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:47,887 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] [2023-11-26 10:49:47,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:49:47,888 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:47,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1545794200, now seen corresponding path program 1 times [2023-11-26 10:49:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354197734] [2023-11-26 10:49:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:47,940 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 10:49:47,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:47,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354197734] [2023-11-26 10:49:47,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354197734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:47,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:47,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:47,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652993768] [2023-11-26 10:49:47,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:47,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:47,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:47,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:48,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 1139 [2023-11-26 10:49:48,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1076 transitions, 2162 flow. Second operand has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:48,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:48,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 1139 [2023-11-26 10:49:48,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:49,078 INFO L124 PetriNetUnfolderBase]: 77/1591 cut-off events. [2023-11-26 10:49:49,078 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-26 10:49:49,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1654 conditions, 1591 events. 77/1591 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7531 event pairs, 16 based on Foata normal form. 0/1291 useless extension candidates. Maximal degree in co-relation 1533. Up to 54 conditions per place. [2023-11-26 10:49:49,153 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 19 selfloop transitions, 2 changer transitions 0/1075 dead transitions. [2023-11-26 10:49:49,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 1075 transitions, 2202 flow [2023-11-26 10:49:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-26 10:49:49,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9686859818554288 [2023-11-26 10:49:49,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-26 10:49:49,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-26 10:49:49,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:49,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-26 10:49:49,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 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 10:49:49,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:49,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:49,188 INFO L175 Difference]: Start difference. First operand has 1045 places, 1076 transitions, 2162 flow. Second operand 3 states and 3310 transitions. [2023-11-26 10:49:49,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1046 places, 1075 transitions, 2202 flow [2023-11-26 10:49:49,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1044 places, 1075 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:49,221 INFO L231 Difference]: Finished difference. Result has 1044 places, 1075 transitions, 2160 flow [2023-11-26 10:49:49,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2156, PETRI_DIFFERENCE_MINUEND_PLACES=1042, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2160, PETRI_PLACES=1044, PETRI_TRANSITIONS=1075} [2023-11-26 10:49:49,224 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -18 predicate places. [2023-11-26 10:49:49,225 INFO L495 AbstractCegarLoop]: Abstraction has has 1044 places, 1075 transitions, 2160 flow [2023-11-26 10:49:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 10:49:49,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:49,226 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] [2023-11-26 10:49:49,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:49:49,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:49,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1252224430, now seen corresponding path program 1 times [2023-11-26 10:49:49,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:49,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635288288] [2023-11-26 10:49:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:49,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:49,289 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 10:49:49,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:49,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635288288] [2023-11-26 10:49:49,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635288288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:49,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:49,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:49,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876460396] [2023-11-26 10:49:49,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:49,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:49,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:49,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1100 out of 1139 [2023-11-26 10:49:49,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1044 places, 1075 transitions, 2160 flow. Second operand has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:49,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:49,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1100 of 1139 [2023-11-26 10:49:49,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:50,711 INFO L124 PetriNetUnfolderBase]: 73/1622 cut-off events. [2023-11-26 10:49:50,712 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-26 10:49:50,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 1622 events. 73/1622 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 7429 event pairs, 12 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1542. Up to 40 conditions per place. [2023-11-26 10:49:50,800 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 15 selfloop transitions, 2 changer transitions 0/1074 dead transitions. [2023-11-26 10:49:50,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1045 places, 1074 transitions, 2192 flow [2023-11-26 10:49:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3318 transitions. [2023-11-26 10:49:50,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.971027216856892 [2023-11-26 10:49:50,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3318 transitions. [2023-11-26 10:49:50,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3318 transitions. [2023-11-26 10:49:50,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:50,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3318 transitions. [2023-11-26 10:49:50,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 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 10:49:50,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:50,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:50,829 INFO L175 Difference]: Start difference. First operand has 1044 places, 1075 transitions, 2160 flow. Second operand 3 states and 3318 transitions. [2023-11-26 10:49:50,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1045 places, 1074 transitions, 2192 flow [2023-11-26 10:49:50,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1043 places, 1074 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:50,856 INFO L231 Difference]: Finished difference. Result has 1043 places, 1074 transitions, 2158 flow [2023-11-26 10:49:50,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2154, PETRI_DIFFERENCE_MINUEND_PLACES=1041, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1072, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=1043, PETRI_TRANSITIONS=1074} [2023-11-26 10:49:50,860 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -19 predicate places. [2023-11-26 10:49:50,860 INFO L495 AbstractCegarLoop]: Abstraction has has 1043 places, 1074 transitions, 2158 flow [2023-11-26 10:49:50,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1101.3333333333333) internal successors, (3304), 3 states have internal predecessors, (3304), 0 states have call successors, (0), 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 10:49:50,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:50,862 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] [2023-11-26 10:49:50,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:49:50,862 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:50,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:50,863 INFO L85 PathProgramCache]: Analyzing trace with hash 764013974, now seen corresponding path program 1 times [2023-11-26 10:49:50,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:50,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119980470] [2023-11-26 10:49:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:50,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:50,935 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 10:49:50,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:50,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119980470] [2023-11-26 10:49:50,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119980470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:50,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645561665] [2023-11-26 10:49:50,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:50,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:50,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 1139 [2023-11-26 10:49:50,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1074 transitions, 2158 flow. Second operand has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:50,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:50,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 1139 [2023-11-26 10:49:50,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:51,722 INFO L124 PetriNetUnfolderBase]: 47/1173 cut-off events. [2023-11-26 10:49:51,722 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2023-11-26 10:49:51,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 1173 events. 47/1173 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4796 event pairs, 10 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1080. Up to 35 conditions per place. [2023-11-26 10:49:51,806 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 14 selfloop transitions, 2 changer transitions 0/1073 dead transitions. [2023-11-26 10:49:51,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1073 transitions, 2188 flow [2023-11-26 10:49:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3320 transitions. [2023-11-26 10:49:51,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9716125256072579 [2023-11-26 10:49:51,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3320 transitions. [2023-11-26 10:49:51,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3320 transitions. [2023-11-26 10:49:51,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:51,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3320 transitions. [2023-11-26 10:49:51,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1106.6666666666667) internal successors, (3320), 3 states have internal predecessors, (3320), 0 states have call successors, (0), 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 10:49:51,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:51,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:51,837 INFO L175 Difference]: Start difference. First operand has 1043 places, 1074 transitions, 2158 flow. Second operand 3 states and 3320 transitions. [2023-11-26 10:49:51,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1073 transitions, 2188 flow [2023-11-26 10:49:51,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 1073 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:51,866 INFO L231 Difference]: Finished difference. Result has 1042 places, 1073 transitions, 2156 flow [2023-11-26 10:49:51,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2152, PETRI_DIFFERENCE_MINUEND_PLACES=1040, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=1042, PETRI_TRANSITIONS=1073} [2023-11-26 10:49:51,869 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -20 predicate places. [2023-11-26 10:49:51,869 INFO L495 AbstractCegarLoop]: Abstraction has has 1042 places, 1073 transitions, 2156 flow [2023-11-26 10:49:51,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 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 10:49:51,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:51,871 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] [2023-11-26 10:49:51,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:49:51,872 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:51,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash -244654850, now seen corresponding path program 1 times [2023-11-26 10:49:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813609837] [2023-11-26 10:49:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:51,932 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 10:49:51,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:51,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813609837] [2023-11-26 10:49:51,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813609837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:51,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:51,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028814724] [2023-11-26 10:49:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:51,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:51,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:52,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1139 [2023-11-26 10:49:52,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1042 places, 1073 transitions, 2156 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:52,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1139 [2023-11-26 10:49:52,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:52,979 INFO L124 PetriNetUnfolderBase]: 85/1620 cut-off events. [2023-11-26 10:49:52,979 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2023-11-26 10:49:53,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 1620 events. 85/1620 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8492 event pairs, 24 based on Foata normal form. 0/1311 useless extension candidates. Maximal degree in co-relation 1554. Up to 70 conditions per place. [2023-11-26 10:49:53,065 INFO L140 encePairwiseOnDemand]: 1136/1139 looper letters, 21 selfloop transitions, 2 changer transitions 0/1072 dead transitions. [2023-11-26 10:49:53,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1043 places, 1072 transitions, 2200 flow [2023-11-26 10:49:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-26 10:49:53,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9675153643546971 [2023-11-26 10:49:53,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-26 10:49:53,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-26 10:49:53,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:53,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-26 10:49:53,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 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 10:49:53,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:53,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1139.0) internal successors, (4556), 4 states have internal predecessors, (4556), 0 states have call successors, (0), 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 10:49:53,091 INFO L175 Difference]: Start difference. First operand has 1042 places, 1073 transitions, 2156 flow. Second operand 3 states and 3306 transitions. [2023-11-26 10:49:53,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1043 places, 1072 transitions, 2200 flow [2023-11-26 10:49:53,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1041 places, 1072 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:53,116 INFO L231 Difference]: Finished difference. Result has 1041 places, 1072 transitions, 2154 flow [2023-11-26 10:49:53,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1139, PETRI_DIFFERENCE_MINUEND_FLOW=2150, PETRI_DIFFERENCE_MINUEND_PLACES=1039, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2154, PETRI_PLACES=1041, PETRI_TRANSITIONS=1072} [2023-11-26 10:49:53,119 INFO L281 CegarLoopForPetriNet]: 1062 programPoint places, -21 predicate places. [2023-11-26 10:49:53,119 INFO L495 AbstractCegarLoop]: Abstraction has has 1041 places, 1072 transitions, 2154 flow [2023-11-26 10:49:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:53,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:53,120 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] [2023-11-26 10:49:53,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:49:53,121 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-11-26 10:49:53,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1756512606, now seen corresponding path program 1 times [2023-11-26 10:49:53,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:53,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44449851] [2023-11-26 10:49:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:54,183 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 10:49:54,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:54,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44449851] [2023-11-26 10:49:54,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44449851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:54,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:54,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:49:54,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200910023] [2023-11-26 10:49:54,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:54,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:49:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:49:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:49:54,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1075 out of 1139 [2023-11-26 10:49:54,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1072 transitions, 2154 flow. Second operand has 6 states, 6 states have (on average 1076.5) internal successors, (6459), 6 states have internal predecessors, (6459), 0 states have call successors, (0), 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 10:49:54,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:54,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1075 of 1139 [2023-11-26 10:49:54,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand