./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU --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 2796c466e7d8363340777400f1e90c0fc7eb53096f49ded0fb8aa6814bf1ef21 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:42,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:42,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:00:42,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:42,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:42,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:42,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:42,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:42,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:42,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:42,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:42,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:42,442 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:42,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:42,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:42,445 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:42,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:42,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:42,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:42,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:42,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:42,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:42,447 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:00:42,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:42,451 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:42,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:42,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:42,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:42,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:42,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:42,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:42,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:42,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:42,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:42,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:42,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:42,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:42,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:42,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:42,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:42,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:42,459 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_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2796c466e7d8363340777400f1e90c0fc7eb53096f49ded0fb8aa6814bf1ef21 [2024-10-31 22:00:42,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:42,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:42,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:42,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:42,858 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:42,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-nondet/nondet-array-2.i Unable to find full path for "g++" [2024-10-31 22:00:44,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:45,165 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:45,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/sv-benchmarks/c/pthread-nondet/nondet-array-2.i [2024-10-31 22:00:45,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/data/9f7fdd8ad/daab659f1e044af092317f2d5eb8a9e6/FLAGd00f9b236 [2024-10-31 22:00:45,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/data/9f7fdd8ad/daab659f1e044af092317f2d5eb8a9e6 [2024-10-31 22:00:45,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:45,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:45,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:45,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:45,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:45,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd91236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45, skipping insertion in model container [2024-10-31 22:00:45,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:45,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:45,786 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:45,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:45,906 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:45,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45 WrapperNode [2024-10-31 22:00:45,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:45,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:45,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:45,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:45,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,962 INFO L138 Inliner]: procedures = 169, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 99 [2024-10-31 22:00:45,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:45,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:45,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:45,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:45,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:45,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:46,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:46,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:46,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:46,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (1/1) ... [2024-10-31 22:00:46,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:46,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:46,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:46,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e14d5f-4457-441d-b08f-bd94b0721c95/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:00:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:00:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-10-31 22:00:46,129 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-10-31 22:00:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:00:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:00:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:00:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:46,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:46,133 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:00:46,273 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:46,275 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:46,591 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:00:46,591 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:46,610 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:46,610 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:00:46,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:46 BoogieIcfgContainer [2024-10-31 22:00:46,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:46,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:46,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:46,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:46,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:45" (1/3) ... [2024-10-31 22:00:46,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de9aed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:46, skipping insertion in model container [2024-10-31 22:00:46,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:45" (2/3) ... [2024-10-31 22:00:46,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de9aed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:46, skipping insertion in model container [2024-10-31 22:00:46,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:46" (3/3) ... [2024-10-31 22:00:46,623 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2024-10-31 22:00:46,638 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:46,638 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:00:46,638 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:00:46,708 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:00:46,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 132 transitions, 271 flow [2024-10-31 22:00:46,838 INFO L124 PetriNetUnfolderBase]: 14/193 cut-off events. [2024-10-31 22:00:46,838 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:00:46,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 193 events. 14/193 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 465 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. [2024-10-31 22:00:46,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 132 transitions, 271 flow [2024-10-31 22:00:46,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 132 transitions, 271 flow [2024-10-31 22:00:46,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:46,878 INFO L333 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, 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;@33c1f99d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:46,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 22:00:46,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:46,894 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-10-31 22:00:46,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:46,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:46,895 INFO L204 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] [2024-10-31 22:00:46,898 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:46,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1230436126, now seen corresponding path program 1 times [2024-10-31 22:00:46,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:46,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552620994] [2024-10-31 22:00:46,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:46,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:47,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552620994] [2024-10-31 22:00:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552620994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:47,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654499490] [2024-10-31 22:00:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:47,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:47,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:47,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:47,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 132 [2024-10-31 22:00:47,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 132 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:47,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:47,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 132 [2024-10-31 22:00:47,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:47,930 INFO L124 PetriNetUnfolderBase]: 3/196 cut-off events. [2024-10-31 22:00:47,931 INFO L125 PetriNetUnfolderBase]: For 12/20 co-relation queries the response was YES. [2024-10-31 22:00:47,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 196 events. 3/196 cut-off events. For 12/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 309 event pairs, 0 based on Foata normal form. 9/186 useless extension candidates. Maximal degree in co-relation 67. Up to 17 conditions per place. [2024-10-31 22:00:47,933 INFO L140 encePairwiseOnDemand]: 114/132 looper letters, 16 selfloop transitions, 8 changer transitions 7/136 dead transitions. [2024-10-31 22:00:47,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 136 transitions, 339 flow [2024-10-31 22:00:47,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:47,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2024-10-31 22:00:47,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2024-10-31 22:00:47,954 INFO L175 Difference]: Start difference. First operand has 127 places, 132 transitions, 271 flow. Second operand 4 states and 473 transitions. [2024-10-31 22:00:47,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 136 transitions, 339 flow [2024-10-31 22:00:47,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 136 transitions, 339 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:47,968 INFO L231 Difference]: Finished difference. Result has 131 places, 126 transitions, 305 flow [2024-10-31 22:00:47,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=305, PETRI_PLACES=131, PETRI_TRANSITIONS=126} [2024-10-31 22:00:47,974 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 4 predicate places. [2024-10-31 22:00:47,976 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 126 transitions, 305 flow [2024-10-31 22:00:47,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:47,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:47,977 INFO L204 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] [2024-10-31 22:00:47,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:47,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:47,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2093606866, now seen corresponding path program 1 times [2024-10-31 22:00:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:47,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842414360] [2024-10-31 22:00:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:48,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842414360] [2024-10-31 22:00:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842414360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:48,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:48,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:48,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743494538] [2024-10-31 22:00:48,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:48,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:48,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:48,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 132 [2024-10-31 22:00:48,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 126 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:48,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:48,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 132 [2024-10-31 22:00:48,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:49,155 INFO L124 PetriNetUnfolderBase]: 83/506 cut-off events. [2024-10-31 22:00:49,156 INFO L125 PetriNetUnfolderBase]: For 64/70 co-relation queries the response was YES. [2024-10-31 22:00:49,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 506 events. 83/506 cut-off events. For 64/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2496 event pairs, 47 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 640. Up to 191 conditions per place. [2024-10-31 22:00:49,160 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 35 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-10-31 22:00:49,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 147 transitions, 461 flow [2024-10-31 22:00:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 602 transitions. [2024-10-31 22:00:49,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76010101010101 [2024-10-31 22:00:49,168 INFO L175 Difference]: Start difference. First operand has 131 places, 126 transitions, 305 flow. Second operand 6 states and 602 transitions. [2024-10-31 22:00:49,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 147 transitions, 461 flow [2024-10-31 22:00:49,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 147 transitions, 459 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:49,175 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 453 flow [2024-10-31 22:00:49,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=453, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2024-10-31 22:00:49,177 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 13 predicate places. [2024-10-31 22:00:49,177 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 453 flow [2024-10-31 22:00:49,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:49,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:49,178 INFO L204 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] [2024-10-31 22:00:49,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:49,180 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:49,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1301886202, now seen corresponding path program 1 times [2024-10-31 22:00:49,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:49,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240862047] [2024-10-31 22:00:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:49,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:49,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240862047] [2024-10-31 22:00:49,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240862047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:49,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:49,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679985325] [2024-10-31 22:00:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:49,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:49,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:49,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 132 [2024-10-31 22:00:49,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:49,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:49,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 132 [2024-10-31 22:00:49,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:49,342 INFO L124 PetriNetUnfolderBase]: 33/309 cut-off events. [2024-10-31 22:00:49,345 INFO L125 PetriNetUnfolderBase]: For 37/39 co-relation queries the response was YES. [2024-10-31 22:00:49,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 309 events. 33/309 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1000 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 418. Up to 45 conditions per place. [2024-10-31 22:00:49,351 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 3 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-10-31 22:00:49,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 146 transitions, 461 flow [2024-10-31 22:00:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2024-10-31 22:00:49,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-10-31 22:00:49,353 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 453 flow. Second operand 3 states and 363 transitions. [2024-10-31 22:00:49,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 146 transitions, 461 flow [2024-10-31 22:00:49,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:49,364 INFO L231 Difference]: Finished difference. Result has 141 places, 146 transitions, 455 flow [2024-10-31 22:00:49,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=141, PETRI_TRANSITIONS=146} [2024-10-31 22:00:49,365 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 14 predicate places. [2024-10-31 22:00:49,365 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 146 transitions, 455 flow [2024-10-31 22:00:49,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:49,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:49,367 INFO L204 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] [2024-10-31 22:00:49,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:49,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:49,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash -507708417, now seen corresponding path program 1 times [2024-10-31 22:00:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:49,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560510057] [2024-10-31 22:00:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:49,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:49,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560510057] [2024-10-31 22:00:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560510057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:49,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:49,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:49,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260116379] [2024-10-31 22:00:49,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:49,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:49,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:50,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 132 [2024-10-31 22:00:50,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 146 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 103.16666666666667) internal successors, (619), 6 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:50,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:50,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 132 [2024-10-31 22:00:50,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:50,395 INFO L124 PetriNetUnfolderBase]: 131/551 cut-off events. [2024-10-31 22:00:50,395 INFO L125 PetriNetUnfolderBase]: For 147/162 co-relation queries the response was YES. [2024-10-31 22:00:50,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 551 events. 131/551 cut-off events. For 147/162 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2595 event pairs, 23 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 1097. Up to 247 conditions per place. [2024-10-31 22:00:50,402 INFO L140 encePairwiseOnDemand]: 117/132 looper letters, 38 selfloop transitions, 48 changer transitions 0/189 dead transitions. [2024-10-31 22:00:50,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 189 transitions, 783 flow [2024-10-31 22:00:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2024-10-31 22:00:50,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8434343434343434 [2024-10-31 22:00:50,405 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 455 flow. Second operand 6 states and 668 transitions. [2024-10-31 22:00:50,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 189 transitions, 783 flow [2024-10-31 22:00:50,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 189 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:50,416 INFO L231 Difference]: Finished difference. Result has 149 places, 189 transitions, 839 flow [2024-10-31 22:00:50,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=839, PETRI_PLACES=149, PETRI_TRANSITIONS=189} [2024-10-31 22:00:50,417 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 22 predicate places. [2024-10-31 22:00:50,417 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 189 transitions, 839 flow [2024-10-31 22:00:50,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.16666666666667) internal successors, (619), 6 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:50,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:50,418 INFO L204 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] [2024-10-31 22:00:50,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:50,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:50,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:50,419 INFO L85 PathProgramCache]: Analyzing trace with hash 873607965, now seen corresponding path program 1 times [2024-10-31 22:00:50,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626034838] [2024-10-31 22:00:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:50,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:50,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626034838] [2024-10-31 22:00:50,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626034838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:50,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:50,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:50,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930649530] [2024-10-31 22:00:50,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:50,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:50,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:50,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:50,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:51,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 132 [2024-10-31 22:00:51,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 189 transitions, 839 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:51,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 132 [2024-10-31 22:00:51,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:51,548 INFO L124 PetriNetUnfolderBase]: 159/718 cut-off events. [2024-10-31 22:00:51,549 INFO L125 PetriNetUnfolderBase]: For 551/624 co-relation queries the response was YES. [2024-10-31 22:00:51,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1964 conditions, 718 events. 159/718 cut-off events. For 551/624 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4084 event pairs, 26 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 1774. Up to 300 conditions per place. [2024-10-31 22:00:51,555 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 87 selfloop transitions, 32 changer transitions 0/217 dead transitions. [2024-10-31 22:00:51,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 217 transitions, 1248 flow [2024-10-31 22:00:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 633 transitions. [2024-10-31 22:00:51,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7992424242424242 [2024-10-31 22:00:51,558 INFO L175 Difference]: Start difference. First operand has 149 places, 189 transitions, 839 flow. Second operand 6 states and 633 transitions. [2024-10-31 22:00:51,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 217 transitions, 1248 flow [2024-10-31 22:00:51,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 217 transitions, 1230 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:51,570 INFO L231 Difference]: Finished difference. Result has 159 places, 216 transitions, 1147 flow [2024-10-31 22:00:51,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1147, PETRI_PLACES=159, PETRI_TRANSITIONS=216} [2024-10-31 22:00:51,571 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 32 predicate places. [2024-10-31 22:00:51,571 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 216 transitions, 1147 flow [2024-10-31 22:00:51,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:51,572 INFO L204 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] [2024-10-31 22:00:51,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:51,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:51,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:51,573 INFO L85 PathProgramCache]: Analyzing trace with hash -351731137, now seen corresponding path program 1 times [2024-10-31 22:00:51,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:51,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889121933] [2024-10-31 22:00:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:51,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:51,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:51,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889121933] [2024-10-31 22:00:51,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889121933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:51,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:51,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:51,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888334616] [2024-10-31 22:00:51,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:51,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:51,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:51,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:51,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:51,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 132 [2024-10-31 22:00:51,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 216 transitions, 1147 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:51,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 132 [2024-10-31 22:00:51,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:51,765 INFO L124 PetriNetUnfolderBase]: 134/590 cut-off events. [2024-10-31 22:00:51,765 INFO L125 PetriNetUnfolderBase]: For 464/481 co-relation queries the response was YES. [2024-10-31 22:00:51,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 590 events. 134/590 cut-off events. For 464/481 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3028 event pairs, 6 based on Foata normal form. 1/587 useless extension candidates. Maximal degree in co-relation 1563. Up to 129 conditions per place. [2024-10-31 22:00:51,770 INFO L140 encePairwiseOnDemand]: 129/132 looper letters, 5 selfloop transitions, 2 changer transitions 19/215 dead transitions. [2024-10-31 22:00:51,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 1159 flow [2024-10-31 22:00:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-10-31 22:00:51,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2024-10-31 22:00:51,773 INFO L175 Difference]: Start difference. First operand has 159 places, 216 transitions, 1147 flow. Second operand 3 states and 359 transitions. [2024-10-31 22:00:51,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 1159 flow [2024-10-31 22:00:51,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 215 transitions, 1103 flow, removed 28 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:51,786 INFO L231 Difference]: Finished difference. Result has 160 places, 196 transitions, 1043 flow [2024-10-31 22:00:51,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1043, PETRI_PLACES=160, PETRI_TRANSITIONS=196} [2024-10-31 22:00:51,788 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, 33 predicate places. [2024-10-31 22:00:51,789 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 196 transitions, 1043 flow [2024-10-31 22:00:51,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:51,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:51,790 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:51,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:00:51,790 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-31 22:00:51,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 208217909, now seen corresponding path program 1 times [2024-10-31 22:00:51,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:51,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502623758] [2024-10-31 22:00:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:51,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:51,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:51,940 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:51,941 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-31 22:00:51,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-10-31 22:00:51,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-31 22:00:51,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-31 22:00:51,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-31 22:00:51,947 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-31 22:00:51,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-31 22:00:51,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-31 22:00:51,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-31 22:00:51,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-31 22:00:51,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:00:51,949 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:51,955 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:00:51,955 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:00:51,992 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:00:51,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 326 flow [2024-10-31 22:00:52,047 INFO L124 PetriNetUnfolderBase]: 27/340 cut-off events. [2024-10-31 22:00:52,048 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-31 22:00:52,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 340 events. 27/340 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2024-10-31 22:00:52,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 155 transitions, 326 flow [2024-10-31 22:00:52,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 155 transitions, 326 flow [2024-10-31 22:00:52,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:52,054 INFO L333 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, 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;@33c1f99d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:52,054 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 22:00:52,062 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:52,062 INFO L124 PetriNetUnfolderBase]: 4/66 cut-off events. [2024-10-31 22:00:52,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:52,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:52,063 INFO L204 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] [2024-10-31 22:00:52,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:00:52,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash -398444194, now seen corresponding path program 1 times [2024-10-31 22:00:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:52,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024502526] [2024-10-31 22:00:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:52,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:52,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024502526] [2024-10-31 22:00:52,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024502526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:52,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:52,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:52,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582845231] [2024-10-31 22:00:52,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:52,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:00:52,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:52,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:00:52,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:00:52,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 155 [2024-10-31 22:00:52,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 155 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:52,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:52,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 155 [2024-10-31 22:00:52,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:52,484 INFO L124 PetriNetUnfolderBase]: 10/400 cut-off events. [2024-10-31 22:00:52,484 INFO L125 PetriNetUnfolderBase]: For 20/38 co-relation queries the response was YES. [2024-10-31 22:00:52,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 400 events. 10/400 cut-off events. For 20/38 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1278 event pairs, 0 based on Foata normal form. 19/377 useless extension candidates. Maximal degree in co-relation 231. Up to 42 conditions per place. [2024-10-31 22:00:52,487 INFO L140 encePairwiseOnDemand]: 137/155 looper letters, 24 selfloop transitions, 9 changer transitions 4/163 dead transitions. [2024-10-31 22:00:52,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 420 flow [2024-10-31 22:00:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:00:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 563 transitions. [2024-10-31 22:00:52,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080645161290323 [2024-10-31 22:00:52,490 INFO L175 Difference]: Start difference. First operand has 151 places, 155 transitions, 326 flow. Second operand 4 states and 563 transitions. [2024-10-31 22:00:52,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 420 flow [2024-10-31 22:00:52,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 163 transitions, 420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:52,493 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 378 flow [2024-10-31 22:00:52,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=378, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2024-10-31 22:00:52,496 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 4 predicate places. [2024-10-31 22:00:52,496 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 378 flow [2024-10-31 22:00:52,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:52,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:52,497 INFO L204 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] [2024-10-31 22:00:52,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:00:52,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:00:52,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1049289079, now seen corresponding path program 1 times [2024-10-31 22:00:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:52,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872265328] [2024-10-31 22:00:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:52,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:52,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872265328] [2024-10-31 22:00:52,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872265328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:52,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:52,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:52,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656277508] [2024-10-31 22:00:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:52,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:53,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 155 [2024-10-31 22:00:53,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 153 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:53,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:53,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 155 [2024-10-31 22:00:53,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:54,128 INFO L124 PetriNetUnfolderBase]: 1178/4239 cut-off events. [2024-10-31 22:00:54,129 INFO L125 PetriNetUnfolderBase]: For 444/466 co-relation queries the response was YES. [2024-10-31 22:00:54,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6807 conditions, 4239 events. 1178/4239 cut-off events. For 444/466 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 36315 event pairs, 769 based on Foata normal form. 0/3826 useless extension candidates. Maximal degree in co-relation 4257. Up to 1921 conditions per place. [2024-10-31 22:00:54,162 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 45 selfloop transitions, 38 changer transitions 0/191 dead transitions. [2024-10-31 22:00:54,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 191 transitions, 625 flow [2024-10-31 22:00:54,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2024-10-31 22:00:54,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817204301075269 [2024-10-31 22:00:54,165 INFO L175 Difference]: Start difference. First operand has 155 places, 153 transitions, 378 flow. Second operand 6 states and 727 transitions. [2024-10-31 22:00:54,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 191 transitions, 625 flow [2024-10-31 22:00:54,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 191 transitions, 623 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:54,171 INFO L231 Difference]: Finished difference. Result has 164 places, 190 transitions, 630 flow [2024-10-31 22:00:54,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=164, PETRI_TRANSITIONS=190} [2024-10-31 22:00:54,172 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 13 predicate places. [2024-10-31 22:00:54,173 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 190 transitions, 630 flow [2024-10-31 22:00:54,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:54,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:54,174 INFO L204 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] [2024-10-31 22:00:54,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:00:54,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:00:54,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1371913771, now seen corresponding path program 1 times [2024-10-31 22:00:54,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:54,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25235626] [2024-10-31 22:00:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:54,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:54,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25235626] [2024-10-31 22:00:54,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25235626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:54,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:54,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248338656] [2024-10-31 22:00:54,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:54,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:54,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:54,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:54,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:54,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 155 [2024-10-31 22:00:54,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 190 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:54,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:54,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 155 [2024-10-31 22:00:54,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:54,907 INFO L124 PetriNetUnfolderBase]: 660/3566 cut-off events. [2024-10-31 22:00:54,908 INFO L125 PetriNetUnfolderBase]: For 569/606 co-relation queries the response was YES. [2024-10-31 22:00:54,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5907 conditions, 3566 events. 660/3566 cut-off events. For 569/606 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 31640 event pairs, 120 based on Foata normal form. 0/3250 useless extension candidates. Maximal degree in co-relation 4883. Up to 759 conditions per place. [2024-10-31 22:00:54,947 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 15 selfloop transitions, 6 changer transitions 0/199 dead transitions. [2024-10-31 22:00:54,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 199 transitions, 701 flow [2024-10-31 22:00:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2024-10-31 22:00:54,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9268817204301075 [2024-10-31 22:00:54,949 INFO L175 Difference]: Start difference. First operand has 164 places, 190 transitions, 630 flow. Second operand 3 states and 431 transitions. [2024-10-31 22:00:54,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 199 transitions, 701 flow [2024-10-31 22:00:54,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 199 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:54,961 INFO L231 Difference]: Finished difference. Result has 168 places, 196 transitions, 682 flow [2024-10-31 22:00:54,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=168, PETRI_TRANSITIONS=196} [2024-10-31 22:00:54,963 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 17 predicate places. [2024-10-31 22:00:54,963 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 196 transitions, 682 flow [2024-10-31 22:00:54,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:54,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:54,964 INFO L204 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] [2024-10-31 22:00:54,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:00:54,965 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:00:54,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:54,966 INFO L85 PathProgramCache]: Analyzing trace with hash 478959066, now seen corresponding path program 1 times [2024-10-31 22:00:54,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:54,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429645959] [2024-10-31 22:00:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:54,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:55,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429645959] [2024-10-31 22:00:55,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429645959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:55,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:55,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:55,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930222945] [2024-10-31 22:00:55,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:55,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:55,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:55,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:55,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 155 [2024-10-31 22:00:55,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 196 transitions, 682 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:55,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:55,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 155 [2024-10-31 22:00:55,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:58,182 INFO L124 PetriNetUnfolderBase]: 3407/12486 cut-off events. [2024-10-31 22:00:58,182 INFO L125 PetriNetUnfolderBase]: For 3002/3161 co-relation queries the response was YES. [2024-10-31 22:00:58,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24792 conditions, 12486 events. 3407/12486 cut-off events. For 3002/3161 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 131523 event pairs, 722 based on Foata normal form. 1/11308 useless extension candidates. Maximal degree in co-relation 21030. Up to 4277 conditions per place. [2024-10-31 22:00:58,285 INFO L140 encePairwiseOnDemand]: 132/155 looper letters, 95 selfloop transitions, 96 changer transitions 0/322 dead transitions. [2024-10-31 22:00:58,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 322 transitions, 1580 flow [2024-10-31 22:00:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:00:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-10-31 22:00:58,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8903225806451613 [2024-10-31 22:00:58,288 INFO L175 Difference]: Start difference. First operand has 168 places, 196 transitions, 682 flow. Second operand 6 states and 828 transitions. [2024-10-31 22:00:58,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 322 transitions, 1580 flow [2024-10-31 22:00:58,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 322 transitions, 1568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:58,315 INFO L231 Difference]: Finished difference. Result has 175 places, 290 transitions, 1466 flow [2024-10-31 22:00:58,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1466, PETRI_PLACES=175, PETRI_TRANSITIONS=290} [2024-10-31 22:00:58,318 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 24 predicate places. [2024-10-31 22:00:58,318 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 290 transitions, 1466 flow [2024-10-31 22:00:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:58,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:58,319 INFO L204 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] [2024-10-31 22:00:58,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:00:58,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:00:58,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:58,320 INFO L85 PathProgramCache]: Analyzing trace with hash -576630333, now seen corresponding path program 1 times [2024-10-31 22:00:58,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:58,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029575374] [2024-10-31 22:00:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:58,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:58,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:58,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029575374] [2024-10-31 22:00:58,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029575374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:58,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:58,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299944945] [2024-10-31 22:00:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:58,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:58,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:59,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 155 [2024-10-31 22:00:59,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 290 transitions, 1466 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:59,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:59,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 155 [2024-10-31 22:00:59,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:02,469 INFO L124 PetriNetUnfolderBase]: 4647/17041 cut-off events. [2024-10-31 22:01:02,469 INFO L125 PetriNetUnfolderBase]: For 11792/12614 co-relation queries the response was YES. [2024-10-31 22:01:02,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42434 conditions, 17041 events. 4647/17041 cut-off events. For 11792/12614 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 194106 event pairs, 1012 based on Foata normal form. 55/15447 useless extension candidates. Maximal degree in co-relation 35434. Up to 6497 conditions per place. [2024-10-31 22:01:02,598 INFO L140 encePairwiseOnDemand]: 140/155 looper letters, 147 selfloop transitions, 72 changer transitions 0/359 dead transitions. [2024-10-31 22:01:02,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 359 transitions, 2356 flow [2024-10-31 22:01:02,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:01:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:01:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2024-10-31 22:01:02,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8150537634408602 [2024-10-31 22:01:02,602 INFO L175 Difference]: Start difference. First operand has 175 places, 290 transitions, 1466 flow. Second operand 6 states and 758 transitions. [2024-10-31 22:01:02,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 359 transitions, 2356 flow [2024-10-31 22:01:02,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 359 transitions, 2338 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 22:01:02,708 INFO L231 Difference]: Finished difference. Result has 185 places, 357 transitions, 2242 flow [2024-10-31 22:01:02,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2242, PETRI_PLACES=185, PETRI_TRANSITIONS=357} [2024-10-31 22:01:02,708 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 34 predicate places. [2024-10-31 22:01:02,709 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 357 transitions, 2242 flow [2024-10-31 22:01:02,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:02,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:02,709 INFO L204 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] [2024-10-31 22:01:02,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:01:02,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:01:02,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2023845364, now seen corresponding path program 1 times [2024-10-31 22:01:02,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:02,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169264973] [2024-10-31 22:01:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:02,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:02,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169264973] [2024-10-31 22:01:02,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169264973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:02,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:02,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35789263] [2024-10-31 22:01:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:02,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:01:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:02,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 155 [2024-10-31 22:01:02,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 357 transitions, 2242 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:02,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:02,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 155 [2024-10-31 22:01:02,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:01:05,658 INFO L124 PetriNetUnfolderBase]: 3748/14854 cut-off events. [2024-10-31 22:01:05,658 INFO L125 PetriNetUnfolderBase]: For 10972/11403 co-relation queries the response was YES. [2024-10-31 22:01:05,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36427 conditions, 14854 events. 3748/14854 cut-off events. For 10972/11403 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 169210 event pairs, 335 based on Foata normal form. 33/13731 useless extension candidates. Maximal degree in co-relation 31504. Up to 3123 conditions per place. [2024-10-31 22:01:05,753 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 16 selfloop transitions, 7 changer transitions 0/364 dead transitions. [2024-10-31 22:01:05,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 364 transitions, 2316 flow [2024-10-31 22:01:05,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:01:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2024-10-31 22:01:05,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9182795698924732 [2024-10-31 22:01:05,755 INFO L175 Difference]: Start difference. First operand has 185 places, 357 transitions, 2242 flow. Second operand 3 states and 427 transitions. [2024-10-31 22:01:05,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 364 transitions, 2316 flow [2024-10-31 22:01:05,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 364 transitions, 2176 flow, removed 70 selfloop flow, removed 0 redundant places. [2024-10-31 22:01:05,860 INFO L231 Difference]: Finished difference. Result has 189 places, 362 transitions, 2158 flow [2024-10-31 22:01:05,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=189, PETRI_TRANSITIONS=362} [2024-10-31 22:01:05,862 INFO L277 CegarLoopForPetriNet]: 151 programPoint places, 38 predicate places. [2024-10-31 22:01:05,862 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 362 transitions, 2158 flow [2024-10-31 22:01:05,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:05,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:01:05,862 INFO L204 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] [2024-10-31 22:01:05,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:01:05,863 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-10-31 22:01:05,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1347297248, now seen corresponding path program 1 times [2024-10-31 22:01:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269749218] [2024-10-31 22:01:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:06,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:06,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269749218] [2024-10-31 22:01:06,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269749218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:06,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:06,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:01:06,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703867305] [2024-10-31 22:01:06,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:06,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:01:06,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:06,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:01:06,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:01:07,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 155 [2024-10-31 22:01:07,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 362 transitions, 2158 flow. Second operand has 10 states, 10 states have (on average 113.7) internal successors, (1137), 10 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:07,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:01:07,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 155 [2024-10-31 22:01:07,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand