./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:31:45,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:31:45,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 16:31:45,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:31:45,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:31:45,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:31:45,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:31:45,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:31:45,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:31:45,817 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:31:45,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:31:45,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:31:45,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:31:45,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:31:45,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:31:45,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:45,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:45,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:31:45,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:31:45,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 ! call(reach_error())) ) 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 -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2025-01-09 16:31:46,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:31:46,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:31:46,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:31:46,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:31:46,092 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:31:46,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2025-01-09 16:31:47,329 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdc4d66ec/bed9ba13016d4ff897bc49b7d0105308/FLAGf051717e5 [2025-01-09 16:31:47,621 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:31:47,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2025-01-09 16:31:47,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdc4d66ec/bed9ba13016d4ff897bc49b7d0105308/FLAGf051717e5 [2025-01-09 16:31:47,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cdc4d66ec/bed9ba13016d4ff897bc49b7d0105308 [2025-01-09 16:31:47,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:31:47,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:31:47,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:31:47,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:31:47,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:31:47,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:47" (1/1) ... [2025-01-09 16:31:47,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398c1f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:47, skipping insertion in model container [2025-01-09 16:31:47,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:47" (1/1) ... [2025-01-09 16:31:47,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:31:48,164 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2025-01-09 16:31:48,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:31:48,218 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:31:48,250 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2025-01-09 16:31:48,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:31:48,330 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:31:48,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48 WrapperNode [2025-01-09 16:31:48,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:31:48,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:31:48,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:31:48,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:31:48,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,371 INFO L138 Inliner]: procedures = 487, calls = 36, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 197 [2025-01-09 16:31:48,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:31:48,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:31:48,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:31:48,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:31:48,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,416 INFO L175 MemorySlicer]: Split 9 memory accesses to 4 slices as follows [2, 5, 1, 1]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 2 writes are split as follows [0, 0, 1, 1]. [2025-01-09 16:31:48,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,427 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:31:48,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:31:48,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:31:48,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:31:48,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (1/1) ... [2025-01-09 16:31:48,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:31:48,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:31:48,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 16:31:48,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 16:31:48,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2025-01-09 16:31:48,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2025-01-09 16:31:48,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:31:48,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:31:48,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:31:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:31:48,524 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 16:31:48,763 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:31:48,764 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:31:48,954 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 16:31:48,956 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:31:49,064 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:31:49,065 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 16:31:49,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:49 BoogieIcfgContainer [2025-01-09 16:31:49,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:31:49,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:31:49,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:31:49,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:31:49,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:31:47" (1/3) ... [2025-01-09 16:31:49,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe5ec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:49, skipping insertion in model container [2025-01-09 16:31:49,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:48" (2/3) ... [2025-01-09 16:31:49,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe5ec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:49, skipping insertion in model container [2025-01-09 16:31:49,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:49" (3/3) ... [2025-01-09 16:31:49,075 INFO L128 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2025-01-09 16:31:49,108 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:31:49,110 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-4_1-thread_local_vars.i that has 3 procedures, 63 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-01-09 16:31:49,110 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 16:31:49,174 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-01-09 16:31:49,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 120 transitions, 267 flow [2025-01-09 16:31:49,252 INFO L124 PetriNetUnfolderBase]: 28/120 cut-off events. [2025-01-09 16:31:49,253 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-09 16:31:49,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 120 events. 28/120 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 352 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 91. Up to 11 conditions per place. [2025-01-09 16:31:49,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 120 transitions, 267 flow [2025-01-09 16:31:49,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 79 transitions, 174 flow [2025-01-09 16:31:49,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:31:49,294 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;@5f13f9c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:31:49,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-01-09 16:31:49,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 16:31:49,297 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2025-01-09 16:31:49,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 16:31:49,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:49,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-09 16:31:49,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2025-01-09 16:31:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 524318, now seen corresponding path program 1 times [2025-01-09 16:31:49,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:49,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026398531] [2025-01-09 16:31:49,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:49,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:49,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-09 16:31:49,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-09 16:31:49,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:49,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:49,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026398531] [2025-01-09 16:31:49,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026398531] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:49,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:49,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 16:31:49,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743463835] [2025-01-09 16:31:49,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:49,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:31:49,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:49,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:31:49,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:31:49,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 120 [2025-01-09 16:31:49,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:49,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:49,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 120 [2025-01-09 16:31:49,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:49,776 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([571] L1746-1-->L1745-1: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork0_#t~switch41#1=|v_thread_usbThread1of1ForFork0_#t~switch41#1_15|, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_7|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_#t~nondet40#1, thread_usbThread1of1ForFork0_#t~switch41#1][19], [9#L1745-1true, 2#ULTIMATE.startEXITtrue, 96#true, 98#true, 93#true]) [2025-01-09 16:31:49,778 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2025-01-09 16:31:49,779 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:49,779 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2025-01-09 16:31:49,779 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:50,115 INFO L124 PetriNetUnfolderBase]: 1734/3204 cut-off events. [2025-01-09 16:31:50,115 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-01-09 16:31:50,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5828 conditions, 3204 events. 1734/3204 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 20496 event pairs, 1381 based on Foata normal form. 155/2835 useless extension candidates. Maximal degree in co-relation 5561. Up to 2533 conditions per place. [2025-01-09 16:31:50,156 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 48 selfloop transitions, 4 changer transitions 2/76 dead transitions. [2025-01-09 16:31:50,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 276 flow [2025-01-09 16:31:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:31:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:31:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2025-01-09 16:31:50,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2025-01-09 16:31:50,174 INFO L175 Difference]: Start difference. First operand has 67 places, 79 transitions, 174 flow. Second operand 3 states and 190 transitions. [2025-01-09 16:31:50,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 276 flow [2025-01-09 16:31:50,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 76 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:31:50,183 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 150 flow [2025-01-09 16:31:50,188 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2025-01-09 16:31:50,194 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2025-01-09 16:31:50,194 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 150 flow [2025-01-09 16:31:50,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:50,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:50,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:50,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 16:31:50,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2025-01-09 16:31:50,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:50,195 INFO L85 PathProgramCache]: Analyzing trace with hash -978567246, now seen corresponding path program 1 times [2025-01-09 16:31:50,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:50,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894219933] [2025-01-09 16:31:50,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:50,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:50,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-09 16:31:50,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-09 16:31:50,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:50,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:50,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:50,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894219933] [2025-01-09 16:31:50,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894219933] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:50,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:50,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:31:50,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423380288] [2025-01-09 16:31:50,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:50,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:31:50,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:50,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:31:50,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:31:50,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2025-01-09 16:31:50,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:50,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:50,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2025-01-09 16:31:50,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:50,447 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([571] L1746-1-->L1745-1: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork0_#t~switch41#1=|v_thread_usbThread1of1ForFork0_#t~switch41#1_15|, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_7|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_#t~nondet40#1, thread_usbThread1of1ForFork0_#t~switch41#1][18], [9#L1745-1true, 101#true, 2#ULTIMATE.startEXITtrue, 98#true, 93#true]) [2025-01-09 16:31:50,447 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2025-01-09 16:31:50,448 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2025-01-09 16:31:50,448 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:50,448 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:50,800 INFO L124 PetriNetUnfolderBase]: 1870/3322 cut-off events. [2025-01-09 16:31:50,800 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-01-09 16:31:50,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6166 conditions, 3322 events. 1870/3322 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 20345 event pairs, 1283 based on Foata normal form. 0/2815 useless extension candidates. Maximal degree in co-relation 5977. Up to 2365 conditions per place. [2025-01-09 16:31:50,815 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 53 selfloop transitions, 4 changer transitions 1/76 dead transitions. [2025-01-09 16:31:50,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 76 transitions, 288 flow [2025-01-09 16:31:50,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:31:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:31:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2025-01-09 16:31:50,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-01-09 16:31:50,817 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 150 flow. Second operand 3 states and 192 transitions. [2025-01-09 16:31:50,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 76 transitions, 288 flow [2025-01-09 16:31:50,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:31:50,819 INFO L231 Difference]: Finished difference. Result has 56 places, 61 transitions, 142 flow [2025-01-09 16:31:50,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=56, PETRI_TRANSITIONS=61} [2025-01-09 16:31:50,819 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2025-01-09 16:31:50,819 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 61 transitions, 142 flow [2025-01-09 16:31:50,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:50,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:50,820 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:50,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 16:31:50,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2025-01-09 16:31:50,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1480703340, now seen corresponding path program 1 times [2025-01-09 16:31:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476629493] [2025-01-09 16:31:50,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:50,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-09 16:31:50,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-09 16:31:50,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:50,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:50,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:50,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476629493] [2025-01-09 16:31:50,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476629493] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:50,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:50,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:31:50,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084116885] [2025-01-09 16:31:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:50,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:31:50,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:50,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:31:50,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:31:50,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 120 [2025-01-09 16:31:50,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 61 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:50,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:50,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 120 [2025-01-09 16:31:50,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:51,030 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([571] L1746-1-->L1745-1: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork0_#t~switch41#1=|v_thread_usbThread1of1ForFork0_#t~switch41#1_15|, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_7|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_#t~nondet40#1, thread_usbThread1of1ForFork0_#t~switch41#1][18], [9#L1745-1true, 101#true, 2#ULTIMATE.startEXITtrue, 104#true, 93#true]) [2025-01-09 16:31:51,030 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2025-01-09 16:31:51,030 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2025-01-09 16:31:51,030 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:51,031 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2025-01-09 16:31:51,201 INFO L124 PetriNetUnfolderBase]: 1869/3137 cut-off events. [2025-01-09 16:31:51,201 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2025-01-09 16:31:51,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6109 conditions, 3137 events. 1869/3137 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 17807 event pairs, 1250 based on Foata normal form. 0/2696 useless extension candidates. Maximal degree in co-relation 4834. Up to 2329 conditions per place. [2025-01-09 16:31:51,249 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 51 selfloop transitions, 2 changer transitions 12/80 dead transitions. [2025-01-09 16:31:51,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 311 flow [2025-01-09 16:31:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:31:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:31:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2025-01-09 16:31:51,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5611111111111111 [2025-01-09 16:31:51,253 INFO L175 Difference]: Start difference. First operand has 56 places, 61 transitions, 142 flow. Second operand 3 states and 202 transitions. [2025-01-09 16:31:51,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 311 flow [2025-01-09 16:31:51,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-09 16:31:51,256 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 119 flow [2025-01-09 16:31:51,256 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2025-01-09 16:31:51,257 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -13 predicate places. [2025-01-09 16:31:51,257 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 119 flow [2025-01-09 16:31:51,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:51,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 16:31:51,258 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:31:51,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 16:31:51,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2025-01-09 16:31:51,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:31:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1763694327, now seen corresponding path program 1 times [2025-01-09 16:31:51,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:31:51,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199298198] [2025-01-09 16:31:51,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:31:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:31:51,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 16:31:51,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 16:31:51,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:31:51,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:31:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 16:31:51,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:31:51,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199298198] [2025-01-09 16:31:51,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199298198] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:31:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:31:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 16:31:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726795318] [2025-01-09 16:31:51,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:31:51,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:31:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:31:51,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:31:51,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:31:51,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2025-01-09 16:31:51,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:51,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 16:31:51,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2025-01-09 16:31:51,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 16:31:51,609 INFO L124 PetriNetUnfolderBase]: 1371/2345 cut-off events. [2025-01-09 16:31:51,609 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2025-01-09 16:31:51,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4324 conditions, 2345 events. 1371/2345 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12494 event pairs, 330 based on Foata normal form. 144/2207 useless extension candidates. Maximal degree in co-relation 2904. Up to 1241 conditions per place. [2025-01-09 16:31:51,617 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-01-09 16:31:51,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 276 flow [2025-01-09 16:31:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:31:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 16:31:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2025-01-09 16:31:51,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5361111111111111 [2025-01-09 16:31:51,618 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 119 flow. Second operand 3 states and 193 transitions. [2025-01-09 16:31:51,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 276 flow [2025-01-09 16:31:51,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 71 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-09 16:31:51,622 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-01-09 16:31:51,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-01-09 16:31:51,623 INFO L279 CegarLoopForPetriNet]: 67 programPoint places, -22 predicate places. [2025-01-09 16:31:51,623 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-01-09 16:31:51,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2025-01-09 16:31:51,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2025-01-09 16:31:51,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2025-01-09 16:31:51,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2025-01-09 16:31:51,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2025-01-09 16:31:51,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2025-01-09 16:31:51,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:31:51,626 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-09 16:31:51,632 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 16:31:51,632 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 16:31:51,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:31:51 BasicIcfg [2025-01-09 16:31:51,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 16:31:51,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 16:31:51,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 16:31:51,640 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 16:31:51,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:49" (3/4) ... [2025-01-09 16:31:51,643 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 16:31:51,647 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2025-01-09 16:31:51,647 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2025-01-09 16:31:51,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2025-01-09 16:31:51,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 16:31:51,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 16:31:51,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 16:31:51,759 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 16:31:51,759 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 16:31:51,759 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 16:31:51,759 INFO L158 Benchmark]: Toolchain (without parser) took 4095.88ms. Allocated memory was 201.3MB in the beginning and 302.0MB in the end (delta: 100.7MB). Free memory was 156.4MB in the beginning and 259.5MB in the end (delta: -103.1MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,760 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 218.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:31:51,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.52ms. Allocated memory is still 201.3MB. Free memory was 156.0MB in the beginning and 100.4MB in the end (delta: 55.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.00ms. Allocated memory is still 201.3MB. Free memory was 100.4MB in the beginning and 97.1MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 16:31:51,760 INFO L158 Benchmark]: Boogie Preprocessor took 82.20ms. Allocated memory is still 201.3MB. Free memory was 97.1MB in the beginning and 93.7MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,760 INFO L158 Benchmark]: RCFGBuilder took 609.09ms. Allocated memory is still 201.3MB. Free memory was 93.7MB in the beginning and 54.4MB in the end (delta: 39.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,763 INFO L158 Benchmark]: TraceAbstraction took 2572.60ms. Allocated memory is still 201.3MB. Free memory was 53.5MB in the beginning and 52.8MB in the end (delta: 708.5kB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,764 INFO L158 Benchmark]: Witness Printer took 119.26ms. Allocated memory was 201.3MB in the beginning and 302.0MB in the end (delta: 100.7MB). Free memory was 52.8MB in the beginning and 259.5MB in the end (delta: -206.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2025-01-09 16:31:51,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 218.1MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.52ms. Allocated memory is still 201.3MB. Free memory was 156.0MB in the beginning and 100.4MB in the end (delta: 55.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.00ms. Allocated memory is still 201.3MB. Free memory was 100.4MB in the beginning and 97.1MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.20ms. Allocated memory is still 201.3MB. Free memory was 97.1MB in the beginning and 93.7MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 609.09ms. Allocated memory is still 201.3MB. Free memory was 93.7MB in the beginning and 54.4MB in the end (delta: 39.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2572.60ms. Allocated memory is still 201.3MB. Free memory was 53.5MB in the beginning and 52.8MB in the end (delta: 708.5kB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 119.26ms. Allocated memory was 201.3MB in the beginning and 302.0MB in the end (delta: 100.7MB). Free memory was 52.8MB in the beginning and 259.5MB in the end (delta: -206.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 398 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 10 mSDtfsCounter, 398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 16:31:51,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE