./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/scull.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/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_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/scull.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/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_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/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 aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:12,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:13,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:46:13,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:13,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:13,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:13,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:13,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:13,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:13,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:13,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:13,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:13,077 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:13,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:13,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:13,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:13,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:13,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:13,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:13,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:13,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:13,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:13,082 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:46:13,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:13,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:13,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:13,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:13,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:13,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:13,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:13,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:13,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:13,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:13,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:13,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:13,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:13,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:13,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:13,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:13,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:13,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:13,090 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_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa00f20131f5095ed14e7a46332bb5342dc26be5a17ecfa68bf5b51120e1579b [2023-11-26 10:46:13,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:13,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:13,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:13,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:13,428 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:13,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-atomic/scull.i [2023-11-26 10:46:16,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:16,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:16,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/sv-benchmarks/c/pthread-atomic/scull.i [2023-11-26 10:46:16,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/data/da27ba7f9/4da3e9464c7e498fbe87714ebe671880/FLAG71b293a67 [2023-11-26 10:46:16,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/data/da27ba7f9/4da3e9464c7e498fbe87714ebe671880 [2023-11-26 10:46:16,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:16,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:16,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:16,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:16,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:16,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:16" (1/1) ... [2023-11-26 10:46:16,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d353151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:16, skipping insertion in model container [2023-11-26 10:46:16,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:16" (1/1) ... [2023-11-26 10:46:17,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:17,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:17,533 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:17,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:17,680 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:17,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17 WrapperNode [2023-11-26 10:46:17,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:17,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:17,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:17,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:17,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,786 INFO L138 Inliner]: procedures = 186, calls = 70, calls flagged for inlining = 32, calls inlined = 29, statements flattened = 565 [2023-11-26 10:46:17,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:17,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:17,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:17,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:17,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:17,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:17,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:17,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:17,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (1/1) ... [2023-11-26 10:46:17,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:17,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:17,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:17,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c86b86d3-c7e4-4a04-aaa8-dd6719e987be/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:46:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:46:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:46:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:46:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:46:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:46:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:46:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure loader [2023-11-26 10:46:17,978 INFO L138 BoogieDeclarations]: Found implementation of procedure loader [2023-11-26 10:46:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:46:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:46:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:17,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:17,988 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 10:46:18,228 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:18,230 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:18,350 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L890: havoc scull_trim_#t~nondet9#1, scull_trim_#t~nondet10#1, scull_trim_#t~nondet11#1, scull_trim_#t~nondet12#1, scull_trim_~dev#1, scull_trim_~qset~0#1; [2023-11-26 10:46:18,350 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-1: havoc scull_trim_#in~dev#1;assume { :end_inline_scull_trim } true; [2023-11-26 10:46:18,351 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-2: assume -2147483648 <= scull_cleanup_module_#t~ret43#1 && scull_cleanup_module_#t~ret43#1 <= 2147483647; [2023-11-26 10:46:18,351 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L890-3: havoc scull_cleanup_module_#t~ret43#1; [2023-11-26 10:46:18,352 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L887: havoc scull_cleanup_module_#t~nondet42#1, scull_cleanup_module_#t~ret43#1, scull_cleanup_module_~dev~4#1;assume { :end_inline_scull_cleanup_module } true; [2023-11-26 10:46:18,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint scull_trim_returnLabel#1: scull_cleanup_module_#t~ret43#1 := scull_trim_#res#1; [2023-11-26 10:46:18,353 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L898: scull_init_module_#res#1 := scull_init_module_~result~0#1; [2023-11-26 10:46:19,036 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:19,078 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:19,078 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:46:19,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:19 BoogieIcfgContainer [2023-11-26 10:46:19,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:19,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:19,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:19,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:19,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:16" (1/3) ... [2023-11-26 10:46:19,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400a485e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:19, skipping insertion in model container [2023-11-26 10:46:19,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:17" (2/3) ... [2023-11-26 10:46:19,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400a485e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:19, skipping insertion in model container [2023-11-26 10:46:19,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:19" (3/3) ... [2023-11-26 10:46:19,091 INFO L112 eAbstractionObserver]: Analyzing ICFG scull.i [2023-11-26 10:46:19,101 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:46:19,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:19,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2023-11-26 10:46:19,114 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:46:19,384 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:46:19,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 615 places, 625 transitions, 1271 flow [2023-11-26 10:46:19,850 INFO L124 PetriNetUnfolderBase]: 20/622 cut-off events. [2023-11-26 10:46:19,864 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:46:19,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 622 events. 20/622 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1934 event pairs, 0 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 561. Up to 4 conditions per place. [2023-11-26 10:46:19,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 615 places, 625 transitions, 1271 flow [2023-11-26 10:46:19,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 600 places, 610 transitions, 1235 flow [2023-11-26 10:46:19,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:19,999 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;@21f3f013, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:20,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-11-26 10:46:20,028 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:46:20,037 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2023-11-26 10:46:20,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:46:20,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:20,039 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] [2023-11-26 10:46:20,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:46:20,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1480908291, now seen corresponding path program 1 times [2023-11-26 10:46:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019498953] [2023-11-26 10:46:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:20,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:20,416 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 10:46:20,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:20,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019498953] [2023-11-26 10:46:20,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019498953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:20,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:20,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324881111] [2023-11-26 10:46:20,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:20,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:20,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:20,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:20,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:20,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 625 [2023-11-26 10:46:20,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 610 transitions, 1235 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 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 10:46:20,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:20,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 625 [2023-11-26 10:46:20,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:22,326 INFO L124 PetriNetUnfolderBase]: 246/4354 cut-off events. [2023-11-26 10:46:22,326 INFO L125 PetriNetUnfolderBase]: For 177/182 co-relation queries the response was YES. [2023-11-26 10:46:22,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4678 conditions, 4354 events. 246/4354 cut-off events. For 177/182 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 36331 event pairs, 112 based on Foata normal form. 94/3944 useless extension candidates. Maximal degree in co-relation 4374. Up to 241 conditions per place. [2023-11-26 10:46:22,441 INFO L140 encePairwiseOnDemand]: 613/625 looper letters, 19 selfloop transitions, 2 changer transitions 0/592 dead transitions. [2023-11-26 10:46:22,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 592 transitions, 1247 flow [2023-11-26 10:46:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:22,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1810 transitions. [2023-11-26 10:46:22,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9653333333333334 [2023-11-26 10:46:22,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1810 transitions. [2023-11-26 10:46:22,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1810 transitions. [2023-11-26 10:46:22,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:22,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1810 transitions. [2023-11-26 10:46:22,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.3333333333334) internal successors, (1810), 3 states have internal predecessors, (1810), 0 states have call successors, (0), 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 10:46:22,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:22,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:22,507 INFO L175 Difference]: Start difference. First operand has 600 places, 610 transitions, 1235 flow. Second operand 3 states and 1810 transitions. [2023-11-26 10:46:22,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 592 transitions, 1247 flow [2023-11-26 10:46:22,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 592 transitions, 1235 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:46:22,537 INFO L231 Difference]: Finished difference. Result has 584 places, 590 transitions, 1196 flow [2023-11-26 10:46:22,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=581, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=584, PETRI_TRANSITIONS=590} [2023-11-26 10:46:22,544 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -16 predicate places. [2023-11-26 10:46:22,544 INFO L495 AbstractCegarLoop]: Abstraction has has 584 places, 590 transitions, 1196 flow [2023-11-26 10:46:22,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 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 10:46:22,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:22,547 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] [2023-11-26 10:46:22,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:46:22,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:46:22,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:22,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1178216341, now seen corresponding path program 1 times [2023-11-26 10:46:22,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:22,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270344452] [2023-11-26 10:46:22,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:22,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:23,449 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 10:46:23,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:23,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270344452] [2023-11-26 10:46:23,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270344452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:23,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:23,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:23,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13199669] [2023-11-26 10:46:23,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:23,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:23,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 625 [2023-11-26 10:46:23,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 590 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 590.6666666666666) internal successors, (3544), 6 states have internal predecessors, (3544), 0 states have call successors, (0), 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 10:46:23,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:23,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 625 [2023-11-26 10:46:23,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:24,959 INFO L124 PetriNetUnfolderBase]: 331/2429 cut-off events. [2023-11-26 10:46:24,960 INFO L125 PetriNetUnfolderBase]: For 8/77 co-relation queries the response was YES. [2023-11-26 10:46:25,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2958 conditions, 2429 events. 331/2429 cut-off events. For 8/77 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18256 event pairs, 20 based on Foata normal form. 4/2178 useless extension candidates. Maximal degree in co-relation 2541. Up to 228 conditions per place. [2023-11-26 10:46:25,036 INFO L140 encePairwiseOnDemand]: 620/625 looper letters, 48 selfloop transitions, 4 changer transitions 0/621 dead transitions. [2023-11-26 10:46:25,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 621 transitions, 1362 flow [2023-11-26 10:46:25,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3587 transitions. [2023-11-26 10:46:25,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9565333333333333 [2023-11-26 10:46:25,048 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3587 transitions. [2023-11-26 10:46:25,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3587 transitions. [2023-11-26 10:46:25,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:25,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3587 transitions. [2023-11-26 10:46:25,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 597.8333333333334) internal successors, (3587), 6 states have internal predecessors, (3587), 0 states have call successors, (0), 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 10:46:25,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 625.0) internal successors, (4375), 7 states have internal predecessors, (4375), 0 states have call successors, (0), 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 10:46:25,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 625.0) internal successors, (4375), 7 states have internal predecessors, (4375), 0 states have call successors, (0), 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 10:46:25,079 INFO L175 Difference]: Start difference. First operand has 584 places, 590 transitions, 1196 flow. Second operand 6 states and 3587 transitions. [2023-11-26 10:46:25,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 621 transitions, 1362 flow [2023-11-26 10:46:25,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 621 transitions, 1362 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:25,099 INFO L231 Difference]: Finished difference. Result has 588 places, 589 transitions, 1202 flow [2023-11-26 10:46:25,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=583, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1202, PETRI_PLACES=588, PETRI_TRANSITIONS=589} [2023-11-26 10:46:25,101 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-26 10:46:25,101 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 589 transitions, 1202 flow [2023-11-26 10:46:25,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 590.6666666666666) internal successors, (3544), 6 states have internal predecessors, (3544), 0 states have call successors, (0), 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 10:46:25,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:25,106 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] [2023-11-26 10:46:25,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:46:25,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting loaderErr0ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:46:25,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:25,112 INFO L85 PathProgramCache]: Analyzing trace with hash -811736548, now seen corresponding path program 1 times [2023-11-26 10:46:25,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:25,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134252209] [2023-11-26 10:46:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:25,171 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 10:46:25,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:25,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134252209] [2023-11-26 10:46:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134252209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:25,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:25,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133666538] [2023-11-26 10:46:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:25,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:25,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:25,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 625 [2023-11-26 10:46:25,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 589 transitions, 1202 flow. Second operand has 3 states, 3 states have (on average 582.0) internal successors, (1746), 3 states have internal predecessors, (1746), 0 states have call successors, (0), 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 10:46:25,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:25,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 625 [2023-11-26 10:46:25,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:32,398 INFO L124 PetriNetUnfolderBase]: 2553/28111 cut-off events. [2023-11-26 10:46:32,398 INFO L125 PetriNetUnfolderBase]: For 293/302 co-relation queries the response was YES. [2023-11-26 10:46:32,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31460 conditions, 28111 events. 2553/28111 cut-off events. For 293/302 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 377371 event pairs, 583 based on Foata normal form. 0/24727 useless extension candidates. Maximal degree in co-relation 29679. Up to 2002 conditions per place. [2023-11-26 10:46:32,935 INFO L140 encePairwiseOnDemand]: 607/625 looper letters, 43 selfloop transitions, 13 changer transitions 0/614 dead transitions. [2023-11-26 10:46:32,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 614 transitions, 1369 flow [2023-11-26 10:46:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2023-11-26 10:46:32,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9621333333333333 [2023-11-26 10:46:32,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1804 transitions. [2023-11-26 10:46:32,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1804 transitions. [2023-11-26 10:46:32,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:32,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1804 transitions. [2023-11-26 10:46:33,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 0 states have call successors, (0), 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 10:46:33,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:33,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:33,135 INFO L175 Difference]: Start difference. First operand has 588 places, 589 transitions, 1202 flow. Second operand 3 states and 1804 transitions. [2023-11-26 10:46:33,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 614 transitions, 1369 flow [2023-11-26 10:46:33,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 614 transitions, 1362 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:46:33,159 INFO L231 Difference]: Finished difference. Result has 588 places, 602 transitions, 1309 flow [2023-11-26 10:46:33,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1195, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1309, PETRI_PLACES=588, PETRI_TRANSITIONS=602} [2023-11-26 10:46:33,162 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-26 10:46:33,162 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 602 transitions, 1309 flow [2023-11-26 10:46:33,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 582.0) internal successors, (1746), 3 states have internal predecessors, (1746), 0 states have call successors, (0), 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 10:46:33,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:33,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:33,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:46:33,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting loaderErr1ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:46:33,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:33,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1826137470, now seen corresponding path program 1 times [2023-11-26 10:46:33,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:33,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518125116] [2023-11-26 10:46:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:33,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:33,236 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 10:46:33,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:33,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518125116] [2023-11-26 10:46:33,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518125116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:33,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:33,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093337401] [2023-11-26 10:46:33,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:33,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:33,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:33,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 625 [2023-11-26 10:46:33,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 602 transitions, 1309 flow. Second operand has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 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 10:46:33,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:33,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 625 [2023-11-26 10:46:33,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:43,574 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1759] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][385], [632#(= |#race~dev_qset~0| 0), 265#L748-4true, 620#(= |#race~i~0| 0), 334#L930-4true, thread2Thread1of1ForFork0InUse, 49#L781-4true, 544#L721-2true, Black: 630#true, 636#true, Black: 618#true]) [2023-11-26 10:46:43,574 INFO L294 olderBase$Statistics]: this new event has 276 ancestors and is cut-off event [2023-11-26 10:46:43,574 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2023-11-26 10:46:43,574 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2023-11-26 10:46:43,574 INFO L297 olderBase$Statistics]: existing Event has 178 ancestors and is cut-off event [2023-11-26 10:46:43,660 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1759] L781-3-->L781-4: Formula: (= |v_#race~dev_qset~0_22| 0) InVars {} OutVars{#race~dev_qset~0=|v_#race~dev_qset~0_22|} AuxVars[] AssignedVars[#race~dev_qset~0][385], [632#(= |#race~dev_qset~0| 0), 620#(= |#race~i~0| 0), 334#L930-4true, thread2Thread1of1ForFork0InUse, 49#L781-4true, 544#L721-2true, Black: 630#true, 36#L748-5true, 636#true, Black: 618#true]) [2023-11-26 10:46:43,660 INFO L294 olderBase$Statistics]: this new event has 277 ancestors and is cut-off event [2023-11-26 10:46:43,661 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2023-11-26 10:46:43,661 INFO L297 olderBase$Statistics]: existing Event has 179 ancestors and is cut-off event [2023-11-26 10:46:43,661 INFO L297 olderBase$Statistics]: existing Event has 228 ancestors and is cut-off event [2023-11-26 10:46:46,185 INFO L124 PetriNetUnfolderBase]: 5657/57067 cut-off events. [2023-11-26 10:46:46,186 INFO L125 PetriNetUnfolderBase]: For 1233/1254 co-relation queries the response was YES. [2023-11-26 10:46:46,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67118 conditions, 57067 events. 5657/57067 cut-off events. For 1233/1254 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 870172 event pairs, 2651 based on Foata normal form. 0/49857 useless extension candidates. Maximal degree in co-relation 36377. Up to 5376 conditions per place. [2023-11-26 10:46:47,210 INFO L140 encePairwiseOnDemand]: 614/625 looper letters, 36 selfloop transitions, 10 changer transitions 0/621 dead transitions. [2023-11-26 10:46:47,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 621 transitions, 1442 flow [2023-11-26 10:46:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2023-11-26 10:46:47,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9610666666666666 [2023-11-26 10:46:47,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1802 transitions. [2023-11-26 10:46:47,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1802 transitions. [2023-11-26 10:46:47,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:47,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1802 transitions. [2023-11-26 10:46:47,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 600.6666666666666) internal successors, (1802), 3 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:47,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:47,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:46:47,236 INFO L175 Difference]: Start difference. First operand has 588 places, 602 transitions, 1309 flow. Second operand 3 states and 1802 transitions. [2023-11-26 10:46:47,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 621 transitions, 1442 flow [2023-11-26 10:46:47,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 621 transitions, 1416 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:47,283 INFO L231 Difference]: Finished difference. Result has 590 places, 611 transitions, 1361 flow [2023-11-26 10:46:47,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1361, PETRI_PLACES=590, PETRI_TRANSITIONS=611} [2023-11-26 10:46:47,287 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -10 predicate places. [2023-11-26 10:46:47,287 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 611 transitions, 1361 flow [2023-11-26 10:46:47,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 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 10:46:47,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:47,290 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] [2023-11-26 10:46:47,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:46:47,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting loaderErr2ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:46:47,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1890800609, now seen corresponding path program 1 times [2023-11-26 10:46:47,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:47,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899663601] [2023-11-26 10:46:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:47,365 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 10:46:47,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:47,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899663601] [2023-11-26 10:46:47,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899663601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:47,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:47,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:47,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430458437] [2023-11-26 10:46:47,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:47,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:47,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:47,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 625 [2023-11-26 10:46:47,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 611 transitions, 1361 flow. Second operand has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 0 states have call successors, (0), 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 10:46:47,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:47,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 625 [2023-11-26 10:46:47,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:00,203 INFO L124 PetriNetUnfolderBase]: 4819/58685 cut-off events. [2023-11-26 10:47:00,204 INFO L125 PetriNetUnfolderBase]: For 726/810 co-relation queries the response was YES. [2023-11-26 10:47:00,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67504 conditions, 58685 events. 4819/58685 cut-off events. For 726/810 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 880512 event pairs, 1134 based on Foata normal form. 0/51534 useless extension candidates. Maximal degree in co-relation 64744. Up to 3179 conditions per place. [2023-11-26 10:47:01,134 INFO L140 encePairwiseOnDemand]: 619/625 looper letters, 27 selfloop transitions, 3 changer transitions 0/619 dead transitions. [2023-11-26 10:47:01,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 619 transitions, 1440 flow [2023-11-26 10:47:01,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1803 transitions. [2023-11-26 10:47:01,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616 [2023-11-26 10:47:01,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1803 transitions. [2023-11-26 10:47:01,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1803 transitions. [2023-11-26 10:47:01,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:01,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1803 transitions. [2023-11-26 10:47:01,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 601.0) internal successors, (1803), 3 states have internal predecessors, (1803), 0 states have call successors, (0), 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 10:47:01,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:47:01,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 625.0) internal successors, (2500), 4 states have internal predecessors, (2500), 0 states have call successors, (0), 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 10:47:01,160 INFO L175 Difference]: Start difference. First operand has 590 places, 611 transitions, 1361 flow. Second operand 3 states and 1803 transitions. [2023-11-26 10:47:01,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 619 transitions, 1440 flow [2023-11-26 10:47:01,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 619 transitions, 1420 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:01,210 INFO L231 Difference]: Finished difference. Result has 588 places, 611 transitions, 1356 flow [2023-11-26 10:47:01,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=625, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1356, PETRI_PLACES=588, PETRI_TRANSITIONS=611} [2023-11-26 10:47:01,213 INFO L281 CegarLoopForPetriNet]: 600 programPoint places, -12 predicate places. [2023-11-26 10:47:01,213 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 611 transitions, 1356 flow [2023-11-26 10:47:01,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 0 states have call successors, (0), 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 10:47:01,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:01,215 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] [2023-11-26 10:47:01,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:47:01,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting loaderErr3ASSERT_VIOLATIONDATA_RACE === [loaderErr0ASSERT_VIOLATIONDATA_RACE, loaderErr1ASSERT_VIOLATIONDATA_RACE, loaderErr2ASSERT_VIOLATIONDATA_RACE, loaderErr3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-11-26 10:47:01,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2145075364, now seen corresponding path program 1 times [2023-11-26 10:47:01,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:01,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041063010] [2023-11-26 10:47:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:01,285 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 10:47:01,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:01,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041063010] [2023-11-26 10:47:01,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041063010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:01,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:01,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:01,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276293898] [2023-11-26 10:47:01,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:01,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:01,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:01,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:01,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 625 [2023-11-26 10:47:01,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 611 transitions, 1356 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 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 10:47:01,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:01,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 625 [2023-11-26 10:47:01,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand