./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-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_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/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_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/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_2af2d717-68da-4cc8-af5d-0e567d665a22/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 b606ed8b0061f7540a480987fb5d0368be6ab145ef928bee0cc134c3bece9590 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:20,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:20,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:04:20,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:20,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:20,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:20,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:20,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:20,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:20,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:20,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:20,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:20,315 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:20,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:20,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:20,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:20,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:20,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:20,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:20,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:20,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:20,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:20,320 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:04:20,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:20,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:20,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:20,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:20,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:20,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:20,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:20,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:20,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:20,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:20,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:20,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:20,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:20,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:20,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:20,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:20,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:20,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:20,327 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_2af2d717-68da-4cc8-af5d-0e567d665a22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b606ed8b0061f7540a480987fb5d0368be6ab145ef928bee0cc134c3bece9590 [2024-10-31 22:04:20,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:20,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:20,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:20,655 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:20,656 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:20,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i Unable to find full path for "g++" [2024-10-31 22:04:22,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:23,116 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:23,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/sv-benchmarks/c/pthread-race-challenges/per-thread-array-index-race-2.i [2024-10-31 22:04:23,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/data/a760915f5/b4951c4ee298443dafe8e381df4a5e3e/FLAGae91a6408 [2024-10-31 22:04:23,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/data/a760915f5/b4951c4ee298443dafe8e381df4a5e3e [2024-10-31 22:04:23,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:23,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:23,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:23,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:23,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:23,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:23" (1/1) ... [2024-10-31 22:04:23,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1244ccb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:23, skipping insertion in model container [2024-10-31 22:04:23,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:23" (1/1) ... [2024-10-31 22:04:23,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:24,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:24,059 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:24,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:24,165 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:24,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24 WrapperNode [2024-10-31 22:04:24,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:24,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:24,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:24,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:24,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,246 INFO L138 Inliner]: procedures = 261, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-10-31 22:04:24,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:24,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:24,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:24,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:24,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:24,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:24,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:24,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:24,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (1/1) ... [2024-10-31 22:04:24,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:24,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:24,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:24,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:04:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:04:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:04:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:04:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:04:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:24,414 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 22:04:24,624 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:24,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:24,947 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:04:24,947 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:24,965 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:24,967 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:04:24,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:24 BoogieIcfgContainer [2024-10-31 22:04:24,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:24,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:24,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:24,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:24,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:23" (1/3) ... [2024-10-31 22:04:24,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@869b2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:24, skipping insertion in model container [2024-10-31 22:04:24,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:24" (2/3) ... [2024-10-31 22:04:24,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@869b2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:24, skipping insertion in model container [2024-10-31 22:04:24,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:24" (3/3) ... [2024-10-31 22:04:24,979 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-index-race-2.i [2024-10-31 22:04:25,000 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:25,001 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:04:25,001 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:04:25,092 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:04:25,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions, 199 flow [2024-10-31 22:04:25,233 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-10-31 22:04:25,233 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:04:25,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 229 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-10-31 22:04:25,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 96 transitions, 199 flow [2024-10-31 22:04:25,249 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 96 transitions, 199 flow [2024-10-31 22:04:25,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:25,273 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;@5bcd5d22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:25,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-31 22:04:25,282 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:25,282 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-31 22:04:25,283 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:25,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:25,284 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] [2024-10-31 22:04:25,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:25,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:25,290 INFO L85 PathProgramCache]: Analyzing trace with hash -544149586, now seen corresponding path program 1 times [2024-10-31 22:04:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:25,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23169073] [2024-10-31 22:04:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:25,550 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 22:04:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23169073] [2024-10-31 22:04:25,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23169073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:25,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:25,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162744888] [2024-10-31 22:04:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:25,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:25,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:25,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:25,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 96 [2024-10-31 22:04:25,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 22:04:25,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:25,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 96 [2024-10-31 22:04:25,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:25,737 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2024-10-31 22:04:25,737 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:04:25,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 161 events. 3/161 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 330 event pairs, 2 based on Foata normal form. 5/147 useless extension candidates. Maximal degree in co-relation 101. Up to 15 conditions per place. [2024-10-31 22:04:25,740 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 8 selfloop transitions, 2 changer transitions 1/92 dead transitions. [2024-10-31 22:04:25,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 211 flow [2024-10-31 22:04:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:25,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-10-31 22:04:25,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2024-10-31 22:04:25,760 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 199 flow. Second operand 3 states and 260 transitions. [2024-10-31 22:04:25,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 211 flow [2024-10-31 22:04:25,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 92 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:25,773 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 193 flow [2024-10-31 22:04:25,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-10-31 22:04:25,780 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 1 predicate places. [2024-10-31 22:04:25,781 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 193 flow [2024-10-31 22:04:25,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 22:04:25,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:25,782 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] [2024-10-31 22:04:25,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:25,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:25,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1305463396, now seen corresponding path program 1 times [2024-10-31 22:04:25,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:25,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022487373] [2024-10-31 22:04:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:25,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:25,940 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 22:04:25,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:25,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022487373] [2024-10-31 22:04:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022487373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981127364] [2024-10-31 22:04:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:25,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:25,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:25,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:25,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:25,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 96 [2024-10-31 22:04:25,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 22:04:25,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:25,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 96 [2024-10-31 22:04:25,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:26,044 INFO L124 PetriNetUnfolderBase]: 5/169 cut-off events. [2024-10-31 22:04:26,044 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:04:26,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 169 events. 5/169 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 335 event pairs, 2 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 164. Up to 16 conditions per place. [2024-10-31 22:04:26,046 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 7 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-10-31 22:04:26,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 211 flow [2024-10-31 22:04:26,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-10-31 22:04:26,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9131944444444444 [2024-10-31 22:04:26,048 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 193 flow. Second operand 3 states and 263 transitions. [2024-10-31 22:04:26,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 211 flow [2024-10-31 22:04:26,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:26,052 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 199 flow [2024-10-31 22:04:26,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2024-10-31 22:04:26,053 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-10-31 22:04:26,053 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 199 flow [2024-10-31 22:04:26,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 22:04:26,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:26,054 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] [2024-10-31 22:04:26,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:26,055 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:26,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1732395560, now seen corresponding path program 1 times [2024-10-31 22:04:26,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139878173] [2024-10-31 22:04:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:26,768 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 22:04:26,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:26,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139878173] [2024-10-31 22:04:26,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139878173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:26,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:26,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134244547] [2024-10-31 22:04:26,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:26,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:26,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:26,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:26,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:27,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 96 [2024-10-31 22:04:27,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 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 22:04:27,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:27,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 96 [2024-10-31 22:04:27,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:27,193 INFO L124 PetriNetUnfolderBase]: 73/402 cut-off events. [2024-10-31 22:04:27,193 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:04:27,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 402 events. 73/402 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1947 event pairs, 35 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 501. Up to 159 conditions per place. [2024-10-31 22:04:27,197 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 23 selfloop transitions, 22 changer transitions 0/112 dead transitions. [2024-10-31 22:04:27,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 112 transitions, 331 flow [2024-10-31 22:04:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2024-10-31 22:04:27,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7986111111111112 [2024-10-31 22:04:27,205 INFO L175 Difference]: Start difference. First operand has 94 places, 91 transitions, 199 flow. Second operand 6 states and 460 transitions. [2024-10-31 22:04:27,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 112 transitions, 331 flow [2024-10-31 22:04:27,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 112 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:27,212 INFO L231 Difference]: Finished difference. Result has 104 places, 112 transitions, 349 flow [2024-10-31 22:04:27,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=104, PETRI_TRANSITIONS=112} [2024-10-31 22:04:27,213 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2024-10-31 22:04:27,213 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 112 transitions, 349 flow [2024-10-31 22:04:27,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 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 22:04:27,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:27,214 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] [2024-10-31 22:04:27,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:27,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:27,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1866357126, now seen corresponding path program 1 times [2024-10-31 22:04:27,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849622015] [2024-10-31 22:04:27,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,357 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 22:04:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:27,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849622015] [2024-10-31 22:04:27,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849622015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:27,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:27,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:27,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142720720] [2024-10-31 22:04:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:27,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:27,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:27,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 96 [2024-10-31 22:04:27,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 112 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 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 22:04:27,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:27,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 96 [2024-10-31 22:04:27,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:27,571 INFO L124 PetriNetUnfolderBase]: 34/262 cut-off events. [2024-10-31 22:04:27,572 INFO L125 PetriNetUnfolderBase]: For 31/39 co-relation queries the response was YES. [2024-10-31 22:04:27,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 262 events. 34/262 cut-off events. For 31/39 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 933 event pairs, 0 based on Foata normal form. 2/254 useless extension candidates. Maximal degree in co-relation 335. Up to 49 conditions per place. [2024-10-31 22:04:27,575 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 11 selfloop transitions, 2 changer transitions 5/117 dead transitions. [2024-10-31 22:04:27,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 117 transitions, 395 flow [2024-10-31 22:04:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2024-10-31 22:04:27,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8663194444444444 [2024-10-31 22:04:27,578 INFO L175 Difference]: Start difference. First operand has 104 places, 112 transitions, 349 flow. Second operand 6 states and 499 transitions. [2024-10-31 22:04:27,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 117 transitions, 395 flow [2024-10-31 22:04:27,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 117 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:27,587 INFO L231 Difference]: Finished difference. Result has 113 places, 112 transitions, 367 flow [2024-10-31 22:04:27,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=113, PETRI_TRANSITIONS=112} [2024-10-31 22:04:27,589 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 18 predicate places. [2024-10-31 22:04:27,590 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 112 transitions, 367 flow [2024-10-31 22:04:27,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 0 states have call successors, (0), 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 22:04:27,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:27,591 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] [2024-10-31 22:04:27,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:27,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:27,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1957891883, now seen corresponding path program 1 times [2024-10-31 22:04:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375841335] [2024-10-31 22:04:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,050 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 22:04:28,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:28,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375841335] [2024-10-31 22:04:28,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375841335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:28,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:28,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:28,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840554801] [2024-10-31 22:04:28,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:28,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:28,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:28,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:28,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:28,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 96 [2024-10-31 22:04:28,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 112 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 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 22:04:28,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:28,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 96 [2024-10-31 22:04:28,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:28,438 INFO L124 PetriNetUnfolderBase]: 131/506 cut-off events. [2024-10-31 22:04:28,438 INFO L125 PetriNetUnfolderBase]: For 135/137 co-relation queries the response was YES. [2024-10-31 22:04:28,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 506 events. 131/506 cut-off events. For 135/137 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2624 event pairs, 23 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 1034. Up to 240 conditions per place. [2024-10-31 22:04:28,444 INFO L140 encePairwiseOnDemand]: 81/96 looper letters, 35 selfloop transitions, 48 changer transitions 12/155 dead transitions. [2024-10-31 22:04:28,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 155 transitions, 689 flow [2024-10-31 22:04:28,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 491 transitions. [2024-10-31 22:04:28,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8524305555555556 [2024-10-31 22:04:28,447 INFO L175 Difference]: Start difference. First operand has 113 places, 112 transitions, 367 flow. Second operand 6 states and 491 transitions. [2024-10-31 22:04:28,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 155 transitions, 689 flow [2024-10-31 22:04:28,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 155 transitions, 675 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:28,456 INFO L231 Difference]: Finished difference. Result has 115 places, 143 transitions, 710 flow [2024-10-31 22:04:28,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=115, PETRI_TRANSITIONS=143} [2024-10-31 22:04:28,484 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 20 predicate places. [2024-10-31 22:04:28,485 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 143 transitions, 710 flow [2024-10-31 22:04:28,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 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 22:04:28,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:28,485 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] [2024-10-31 22:04:28,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:28,486 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:28,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,487 INFO L85 PathProgramCache]: Analyzing trace with hash -676534449, now seen corresponding path program 1 times [2024-10-31 22:04:28,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088268874] [2024-10-31 22:04:28,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,973 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 22:04:28,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:28,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088268874] [2024-10-31 22:04:28,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088268874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:28,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527396113] [2024-10-31 22:04:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:28,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:28,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:29,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 96 [2024-10-31 22:04:29,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 143 transitions, 710 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 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 22:04:29,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:29,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 96 [2024-10-31 22:04:29,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:29,334 INFO L124 PetriNetUnfolderBase]: 142/512 cut-off events. [2024-10-31 22:04:29,334 INFO L125 PetriNetUnfolderBase]: For 432/436 co-relation queries the response was YES. [2024-10-31 22:04:29,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1584 conditions, 512 events. 142/512 cut-off events. For 432/436 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2815 event pairs, 10 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 1505. Up to 241 conditions per place. [2024-10-31 22:04:29,341 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 73 selfloop transitions, 25 changer transitions 13/171 dead transitions. [2024-10-31 22:04:29,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 171 transitions, 1093 flow [2024-10-31 22:04:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:29,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 469 transitions. [2024-10-31 22:04:29,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8142361111111112 [2024-10-31 22:04:29,344 INFO L175 Difference]: Start difference. First operand has 115 places, 143 transitions, 710 flow. Second operand 6 states and 469 transitions. [2024-10-31 22:04:29,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 171 transitions, 1093 flow [2024-10-31 22:04:29,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 171 transitions, 1074 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-10-31 22:04:29,359 INFO L231 Difference]: Finished difference. Result has 114 places, 158 transitions, 926 flow [2024-10-31 22:04:29,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=114, PETRI_TRANSITIONS=158} [2024-10-31 22:04:29,360 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, 19 predicate places. [2024-10-31 22:04:29,361 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 158 transitions, 926 flow [2024-10-31 22:04:29,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 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 22:04:29,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:29,362 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] [2024-10-31 22:04:29,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:29,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-31 22:04:29,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash 360110075, now seen corresponding path program 1 times [2024-10-31 22:04:29,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496010487] [2024-10-31 22:04:29,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:29,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:29,458 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:29,459 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-31 22:04:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-31 22:04:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-31 22:04:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-31 22:04:29,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-31 22:04:29,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-31 22:04:29,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-31 22:04:29,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-31 22:04:29,469 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-31 22:04:29,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:29,469 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:29,472 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:04:29,475 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:04:29,500 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:04:29,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 117 transitions, 250 flow [2024-10-31 22:04:29,529 INFO L124 PetriNetUnfolderBase]: 11/223 cut-off events. [2024-10-31 22:04:29,529 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:04:29,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 223 events. 11/223 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 488 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 133. Up to 8 conditions per place. [2024-10-31 22:04:29,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 117 transitions, 250 flow [2024-10-31 22:04:29,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 117 transitions, 250 flow [2024-10-31 22:04:29,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:29,535 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;@5bcd5d22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:29,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 22:04:29,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:29,538 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-10-31 22:04:29,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:29,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:29,538 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] [2024-10-31 22:04:29,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:29,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1771504451, now seen corresponding path program 1 times [2024-10-31 22:04:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775799234] [2024-10-31 22:04:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,566 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 22:04:29,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775799234] [2024-10-31 22:04:29,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775799234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:29,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:29,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:29,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530589742] [2024-10-31 22:04:29,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:29,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:29,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:29,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2024-10-31 22:04:29,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 22:04:29,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:29,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2024-10-31 22:04:29,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:29,686 INFO L124 PetriNetUnfolderBase]: 19/441 cut-off events. [2024-10-31 22:04:29,686 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-31 22:04:29,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 441 events. 19/441 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1876 event pairs, 16 based on Foata normal form. 9/393 useless extension candidates. Maximal degree in co-relation 287. Up to 50 conditions per place. [2024-10-31 22:04:29,689 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 11 selfloop transitions, 2 changer transitions 1/113 dead transitions. [2024-10-31 22:04:29,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 268 flow [2024-10-31 22:04:29,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2024-10-31 22:04:29,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2024-10-31 22:04:29,692 INFO L175 Difference]: Start difference. First operand has 117 places, 117 transitions, 250 flow. Second operand 3 states and 317 transitions. [2024-10-31 22:04:29,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 268 flow [2024-10-31 22:04:29,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 268 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:29,695 INFO L231 Difference]: Finished difference. Result has 118 places, 112 transitions, 244 flow [2024-10-31 22:04:29,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=118, PETRI_TRANSITIONS=112} [2024-10-31 22:04:29,697 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 1 predicate places. [2024-10-31 22:04:29,697 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 112 transitions, 244 flow [2024-10-31 22:04:29,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 22:04:29,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:29,698 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] [2024-10-31 22:04:29,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:29,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:29,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1558441532, now seen corresponding path program 1 times [2024-10-31 22:04:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686869398] [2024-10-31 22:04:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,744 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 22:04:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:29,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686869398] [2024-10-31 22:04:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686869398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:29,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:29,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850335083] [2024-10-31 22:04:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:29,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:29,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:29,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2024-10-31 22:04:29,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 112 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 22:04:29,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:29,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2024-10-31 22:04:29,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:29,886 INFO L124 PetriNetUnfolderBase]: 48/598 cut-off events. [2024-10-31 22:04:29,887 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:04:29,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 598 events. 48/598 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2965 event pairs, 27 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 692. Up to 97 conditions per place. [2024-10-31 22:04:29,891 INFO L140 encePairwiseOnDemand]: 111/117 looper letters, 12 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2024-10-31 22:04:29,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 113 transitions, 281 flow [2024-10-31 22:04:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-10-31 22:04:29,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905982905982906 [2024-10-31 22:04:29,893 INFO L175 Difference]: Start difference. First operand has 118 places, 112 transitions, 244 flow. Second operand 3 states and 318 transitions. [2024-10-31 22:04:29,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 113 transitions, 281 flow [2024-10-31 22:04:29,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 113 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:29,896 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 255 flow [2024-10-31 22:04:29,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2024-10-31 22:04:29,897 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -2 predicate places. [2024-10-31 22:04:29,897 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 255 flow [2024-10-31 22:04:29,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 22:04:29,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:29,898 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] [2024-10-31 22:04:29,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:29,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:29,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1701174552, now seen corresponding path program 1 times [2024-10-31 22:04:29,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065246623] [2024-10-31 22:04:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:30,187 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 22:04:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:30,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065246623] [2024-10-31 22:04:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065246623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:30,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:30,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:30,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819198812] [2024-10-31 22:04:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:30,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:30,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:30,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 117 [2024-10-31 22:04:30,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 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 22:04:30,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:30,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 117 [2024-10-31 22:04:30,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:31,041 INFO L124 PetriNetUnfolderBase]: 1014/3169 cut-off events. [2024-10-31 22:04:31,042 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-31 22:04:31,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5061 conditions, 3169 events. 1014/3169 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 26242 event pairs, 586 based on Foata normal form. 0/2847 useless extension candidates. Maximal degree in co-relation 4117. Up to 1592 conditions per place. [2024-10-31 22:04:31,067 INFO L140 encePairwiseOnDemand]: 102/117 looper letters, 30 selfloop transitions, 38 changer transitions 0/150 dead transitions. [2024-10-31 22:04:31,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 150 transitions, 472 flow [2024-10-31 22:04:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2024-10-31 22:04:31,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8162393162393162 [2024-10-31 22:04:31,070 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 255 flow. Second operand 6 states and 573 transitions. [2024-10-31 22:04:31,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 150 transitions, 472 flow [2024-10-31 22:04:31,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:31,074 INFO L231 Difference]: Finished difference. Result has 125 places, 149 transitions, 509 flow [2024-10-31 22:04:31,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=509, PETRI_PLACES=125, PETRI_TRANSITIONS=149} [2024-10-31 22:04:31,076 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 8 predicate places. [2024-10-31 22:04:31,076 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 149 transitions, 509 flow [2024-10-31 22:04:31,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 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 22:04:31,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:31,077 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] [2024-10-31 22:04:31,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:04:31,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:31,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1567212986, now seen corresponding path program 1 times [2024-10-31 22:04:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938154755] [2024-10-31 22:04:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:31,157 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 22:04:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:31,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938154755] [2024-10-31 22:04:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938154755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:31,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:31,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:31,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539249156] [2024-10-31 22:04:31,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:31,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:31,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:31,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 117 [2024-10-31 22:04:31,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 149 transitions, 509 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 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 22:04:31,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:31,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 117 [2024-10-31 22:04:31,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:31,622 INFO L124 PetriNetUnfolderBase]: 481/1741 cut-off events. [2024-10-31 22:04:31,622 INFO L125 PetriNetUnfolderBase]: For 382/462 co-relation queries the response was YES. [2024-10-31 22:04:31,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3209 conditions, 1741 events. 481/1741 cut-off events. For 382/462 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 12358 event pairs, 131 based on Foata normal form. 2/1643 useless extension candidates. Maximal degree in co-relation 2638. Up to 615 conditions per place. [2024-10-31 22:04:31,639 INFO L140 encePairwiseOnDemand]: 109/117 looper letters, 14 selfloop transitions, 2 changer transitions 5/155 dead transitions. [2024-10-31 22:04:31,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 155 transitions, 563 flow [2024-10-31 22:04:31,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2024-10-31 22:04:31,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774928774928775 [2024-10-31 22:04:31,642 INFO L175 Difference]: Start difference. First operand has 125 places, 149 transitions, 509 flow. Second operand 6 states and 616 transitions. [2024-10-31 22:04:31,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 155 transitions, 563 flow [2024-10-31 22:04:31,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 155 transitions, 563 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:31,651 INFO L231 Difference]: Finished difference. Result has 134 places, 150 transitions, 531 flow [2024-10-31 22:04:31,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=531, PETRI_PLACES=134, PETRI_TRANSITIONS=150} [2024-10-31 22:04:31,653 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 17 predicate places. [2024-10-31 22:04:31,653 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 150 transitions, 531 flow [2024-10-31 22:04:31,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 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 22:04:31,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:31,654 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] [2024-10-31 22:04:31,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:04:31,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:31,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1925682072, now seen corresponding path program 1 times [2024-10-31 22:04:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147356635] [2024-10-31 22:04:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:32,056 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 22:04:32,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:32,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147356635] [2024-10-31 22:04:32,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147356635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:32,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:32,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:32,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702031901] [2024-10-31 22:04:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:32,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:32,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:32,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2024-10-31 22:04:32,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 150 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 0 states have call successors, (0), 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 22:04:32,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:32,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2024-10-31 22:04:32,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:33,610 INFO L124 PetriNetUnfolderBase]: 2425/6842 cut-off events. [2024-10-31 22:04:33,611 INFO L125 PetriNetUnfolderBase]: For 1864/2249 co-relation queries the response was YES. [2024-10-31 22:04:33,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14933 conditions, 6842 events. 2425/6842 cut-off events. For 1864/2249 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 62494 event pairs, 537 based on Foata normal form. 17/6325 useless extension candidates. Maximal degree in co-relation 14831. Up to 2882 conditions per place. [2024-10-31 22:04:33,672 INFO L140 encePairwiseOnDemand]: 98/117 looper letters, 86 selfloop transitions, 86 changer transitions 0/260 dead transitions. [2024-10-31 22:04:33,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 260 transitions, 1359 flow [2024-10-31 22:04:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:33,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2024-10-31 22:04:33,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8874643874643875 [2024-10-31 22:04:33,675 INFO L175 Difference]: Start difference. First operand has 134 places, 150 transitions, 531 flow. Second operand 6 states and 623 transitions. [2024-10-31 22:04:33,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 260 transitions, 1359 flow [2024-10-31 22:04:33,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 260 transitions, 1347 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:33,695 INFO L231 Difference]: Finished difference. Result has 136 places, 233 transitions, 1245 flow [2024-10-31 22:04:33,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1245, PETRI_PLACES=136, PETRI_TRANSITIONS=233} [2024-10-31 22:04:33,697 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2024-10-31 22:04:33,697 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 233 transitions, 1245 flow [2024-10-31 22:04:33,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 0 states have call successors, (0), 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 22:04:33,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:33,698 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] [2024-10-31 22:04:33,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:04:33,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:33,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:33,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1833776535, now seen corresponding path program 1 times [2024-10-31 22:04:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:33,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095041891] [2024-10-31 22:04:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:33,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:34,217 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 22:04:34,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:34,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095041891] [2024-10-31 22:04:34,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095041891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:34,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:34,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:34,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525678797] [2024-10-31 22:04:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:34,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:34,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:34,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:34,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:34,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2024-10-31 22:04:34,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 233 transitions, 1245 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 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 22:04:34,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:34,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2024-10-31 22:04:34,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:36,182 INFO L124 PetriNetUnfolderBase]: 3064/8860 cut-off events. [2024-10-31 22:04:36,182 INFO L125 PetriNetUnfolderBase]: For 6913/7212 co-relation queries the response was YES. [2024-10-31 22:04:36,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24607 conditions, 8860 events. 3064/8860 cut-off events. For 6913/7212 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 88155 event pairs, 525 based on Foata normal form. 14/8296 useless extension candidates. Maximal degree in co-relation 23620. Up to 4186 conditions per place. [2024-10-31 22:04:36,297 INFO L140 encePairwiseOnDemand]: 102/117 looper letters, 135 selfloop transitions, 71 changer transitions 0/301 dead transitions. [2024-10-31 22:04:36,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 301 transitions, 2101 flow [2024-10-31 22:04:36,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2024-10-31 22:04:36,300 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8319088319088319 [2024-10-31 22:04:36,300 INFO L175 Difference]: Start difference. First operand has 136 places, 233 transitions, 1245 flow. Second operand 6 states and 584 transitions. [2024-10-31 22:04:36,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 301 transitions, 2101 flow [2024-10-31 22:04:36,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 301 transitions, 2083 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:36,356 INFO L231 Difference]: Finished difference. Result has 146 places, 299 transitions, 2007 flow [2024-10-31 22:04:36,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1227, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2007, PETRI_PLACES=146, PETRI_TRANSITIONS=299} [2024-10-31 22:04:36,358 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 29 predicate places. [2024-10-31 22:04:36,358 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 299 transitions, 2007 flow [2024-10-31 22:04:36,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 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 22:04:36,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:36,359 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1] [2024-10-31 22:04:36,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:04:36,359 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:36,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2096755450, now seen corresponding path program 1 times [2024-10-31 22:04:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:36,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127381314] [2024-10-31 22:04:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:36,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:04:37,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:37,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127381314] [2024-10-31 22:04:37,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127381314] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:37,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918217822] [2024-10-31 22:04:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:37,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:37,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:37,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:37,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:04:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:37,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:04:37,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:37,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-31 22:04:37,370 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-31 22:04:37,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-31 22:04:37,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-31 22:04:37,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-31 22:04:37,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:04:37,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-31 22:04:37,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:04:37,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-31 22:04:37,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2024-10-31 22:04:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:04:37,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:37,799 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~1#1| 4))) (and (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 3 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 1 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 2 .cse0)) |c_ULTIMATE.start_main_#t~nondet10#1|)))) is different from false [2024-10-31 22:04:38,058 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~i~1#1| 4))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 3 .cse2))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~tids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~tids~0#1.base|) .cse1 |c_ULTIMATE.start_main_#t~nondet10#1|)))) (and (forall ((v_ArrVal_249 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet10#1| (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) .cse1))) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 2 .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)) (forall ((v_ArrVal_249 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_249) |c_ULTIMATE.start_main_~tids~0#1.base|) (+ |c_ULTIMATE.start_main_~tids~0#1.offset| 1 .cse2)) |c_ULTIMATE.start_main_#t~nondet10#1|)))))) is different from false [2024-10-31 22:04:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 1 times theorem prover too weak. 6 trivial. 1 not checked. [2024-10-31 22:04:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918217822] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:45,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-10-31 22:04:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083471005] [2024-10-31 22:04:45,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:45,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:04:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:04:45,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=135, Unknown=10, NotChecked=50, Total=240 [2024-10-31 22:04:45,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 117 [2024-10-31 22:04:45,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 299 transitions, 2007 flow. Second operand has 16 states, 16 states have (on average 64.375) internal successors, (1030), 16 states have internal predecessors, (1030), 0 states have call successors, (0), 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 22:04:45,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:45,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 117 [2024-10-31 22:04:45,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:49,609 INFO L124 PetriNetUnfolderBase]: 8331/18747 cut-off events. [2024-10-31 22:04:49,609 INFO L125 PetriNetUnfolderBase]: For 23371/23374 co-relation queries the response was YES. [2024-10-31 22:04:49,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58253 conditions, 18747 events. 8331/18747 cut-off events. For 23371/23374 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 185034 event pairs, 2465 based on Foata normal form. 172/17959 useless extension candidates. Maximal degree in co-relation 56297. Up to 8285 conditions per place. [2024-10-31 22:04:49,754 INFO L140 encePairwiseOnDemand]: 103/117 looper letters, 389 selfloop transitions, 36 changer transitions 0/490 dead transitions. [2024-10-31 22:04:49,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 490 transitions, 4293 flow [2024-10-31 22:04:49,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:04:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:04:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 942 transitions. [2024-10-31 22:04:49,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193293885601578 [2024-10-31 22:04:49,757 INFO L175 Difference]: Start difference. First operand has 146 places, 299 transitions, 2007 flow. Second operand 13 states and 942 transitions. [2024-10-31 22:04:49,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 490 transitions, 4293 flow [2024-10-31 22:04:49,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 490 transitions, 4153 flow, removed 70 selfloop flow, removed 0 redundant places. [2024-10-31 22:04:49,881 INFO L231 Difference]: Finished difference. Result has 157 places, 298 transitions, 1935 flow [2024-10-31 22:04:49,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1935, PETRI_PLACES=157, PETRI_TRANSITIONS=298} [2024-10-31 22:04:49,884 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 40 predicate places. [2024-10-31 22:04:49,884 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 298 transitions, 1935 flow [2024-10-31 22:04:49,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 64.375) internal successors, (1030), 16 states have internal predecessors, (1030), 0 states have call successors, (0), 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 22:04:49,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:49,885 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:49,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:04:50,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af2d717-68da-4cc8-af5d-0e567d665a22/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:50,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-31 22:04:50,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash -369940300, now seen corresponding path program 1 times [2024-10-31 22:04:50,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:50,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136724058] [2024-10-31 22:04:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:04:50,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:50,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136724058] [2024-10-31 22:04:50,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136724058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:50,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:50,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:04:50,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910314622] [2024-10-31 22:04:50,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:50,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:04:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:04:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:04:51,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 117 [2024-10-31 22:04:51,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 298 transitions, 1935 flow. Second operand has 11 states, 11 states have (on average 79.9090909090909) internal successors, (879), 11 states have internal predecessors, (879), 0 states have call successors, (0), 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 22:04:51,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:51,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 117 [2024-10-31 22:04:51,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand