./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i --full-output --traceabstraction.positions.where.we.compute.the.hoare.annotation All --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 448d4d75 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.owicki-witnesses-448d4d7-m [2024-02-20 11:34:22,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-20 11:34:22,653 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-20 11:34:22,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-20 11:34:22,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-20 11:34:22,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-20 11:34:22,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-20 11:34:22,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-20 11:34:22,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-20 11:34:22,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-20 11:34:22,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-20 11:34:22,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-20 11:34:22,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-20 11:34:22,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-20 11:34:22,696 INFO L153 SettingsManager]: * Use SBE=true [2024-02-20 11:34:22,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-20 11:34:22,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-20 11:34:22,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-20 11:34:22,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-20 11:34:22,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-20 11:34:22,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-20 11:34:22,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-20 11:34:22,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-20 11:34:22,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-20 11:34:22,701 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-20 11:34:22,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-20 11:34:22,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-20 11:34:22,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-20 11:34:22,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-20 11:34:22,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-20 11:34:22,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-20 11:34:22,704 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-20 11:34:22,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 11:34:22,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-20 11:34:22,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-20 11:34:22,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-20 11:34:22,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-20 11:34:22,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-20 11:34:22,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-20 11:34:22,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-20 11:34:22,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-20 11:34:22,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-20 11:34:22,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-20 11:34:22,707 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2024-02-20 11:34:22,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-20 11:34:23,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-20 11:34:23,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-20 11:34:23,004 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-20 11:34:23,004 INFO L274 PluginConnector]: CDTParser initialized [2024-02-20 11:34:23,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-20 11:34:24,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-20 11:34:24,474 INFO L384 CDTParser]: Found 1 translation units. [2024-02-20 11:34:24,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-20 11:34:24,501 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8df4b5b/df862b391b644b73a0eb4f17c4780b91/FLAGf1db12e99 [2024-02-20 11:34:24,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8df4b5b/df862b391b644b73a0eb4f17c4780b91 [2024-02-20 11:34:24,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-20 11:34:24,518 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-20 11:34:24,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-20 11:34:24,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-20 11:34:24,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-20 11:34:24,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 11:34:24" (1/1) ... [2024-02-20 11:34:24,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d6902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:24, skipping insertion in model container [2024-02-20 11:34:24,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 11:34:24" (1/1) ... [2024-02-20 11:34:24,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-20 11:34:25,151 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-02-20 11:34:25,214 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 11:34:25,233 INFO L202 MainTranslator]: Completed pre-run [2024-02-20 11:34:25,296 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-02-20 11:34:25,321 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 11:34:25,495 INFO L206 MainTranslator]: Completed translation [2024-02-20 11:34:25,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25 WrapperNode [2024-02-20 11:34:25,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-20 11:34:25,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-20 11:34:25,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-20 11:34:25,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-20 11:34:25,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,590 INFO L138 Inliner]: procedures = 487, calls = 44, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 211 [2024-02-20 11:34:25,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-20 11:34:25,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-20 11:34:25,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-20 11:34:25,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-20 11:34:25,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,621 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 3, 3, 1, 5, 1]. 33 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 1, 0, 5, 0]. The 4 writes are split as follows [0, 1, 1, 1, 0, 1]. [2024-02-20 11:34:25,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,642 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-20 11:34:25,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-20 11:34:25,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-20 11:34:25,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-20 11:34:25,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (1/1) ... [2024-02-20 11:34:25,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 11:34:25,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-20 11:34:25,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-20 11:34:25,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-20 11:34:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-02-20 11:34:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-02-20 11:34:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-20 11:34:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-20 11:34:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-20 11:34:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-20 11:34:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-20 11:34:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-20 11:34:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-20 11:34:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-02-20 11:34:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-20 11:34:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-20 11:34:25,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-20 11:34:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-20 11:34:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-20 11:34:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-20 11:34:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-20 11:34:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-20 11:34:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-20 11:34:25,751 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-20 11:34:26,086 INFO L244 CfgBuilder]: Building ICFG [2024-02-20 11:34:26,088 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-20 11:34:26,279 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-20 11:34:26,279 INFO L293 CfgBuilder]: Performing block encoding [2024-02-20 11:34:26,385 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-20 11:34:26,385 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-20 11:34:26,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:34:26 BoogieIcfgContainer [2024-02-20 11:34:26,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-20 11:34:26,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-20 11:34:26,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-20 11:34:26,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-20 11:34:26,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 11:34:24" (1/3) ... [2024-02-20 11:34:26,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f54ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:34:26, skipping insertion in model container [2024-02-20 11:34:26,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:25" (2/3) ... [2024-02-20 11:34:26,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f54ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:34:26, skipping insertion in model container [2024-02-20 11:34:26,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:34:26" (3/3) ... [2024-02-20 11:34:26,395 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-02-20 11:34:26,431 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-20 11:34:26,431 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-20 11:34:26,431 INFO L635 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-20 11:34:26,489 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-02-20 11:34:26,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 120 transitions, 267 flow [2024-02-20 11:34:26,588 INFO L124 PetriNetUnfolderBase]: 28/120 cut-off events. [2024-02-20 11:34:26,589 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-20 11:34:26,596 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 350 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. [2024-02-20 11:34:26,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 120 transitions, 267 flow [2024-02-20 11:34:26,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 79 transitions, 174 flow [2024-02-20 11:34:26,614 INFO L368 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-20 11:34:26,624 INFO L369 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@49f71a21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-20 11:34:26,625 INFO L370 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-02-20 11:34:26,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-20 11:34:26,630 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-02-20 11:34:26,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-20 11:34:26,631 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:26,631 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-20 11:34:26,632 INFO L432 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:26,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:26,636 INFO L85 PathProgramCache]: Analyzing trace with hash 557116, now seen corresponding path program 1 times [2024-02-20 11:34:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 11:34:26,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305079574] [2024-02-20 11:34:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:26,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 11:34:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:27,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 11:34:27,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305079574] [2024-02-20 11:34:27,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305079574] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:27,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:27,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-20 11:34:27,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339412095] [2024-02-20 11:34:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:27,038 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:27,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 11:34:27,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:27,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:27,077 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 120 [2024-02-20 11:34:27,080 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) [2024-02-20 11:34:27,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:27,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 120 [2024-02-20 11:34:27,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:27,237 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([600] L1746-2-->L1745-2: Formula: true InVars {} OutVars{thread_usbThread1of1ForFork1_#t~switch42#1=|v_thread_usbThread1of1ForFork1_#t~switch42#1_15|, thread_usbThread1of1ForFork1_#t~nondet41#1=|v_thread_usbThread1of1ForFork1_#t~nondet41#1_7|} AuxVars[] AssignedVars[thread_usbThread1of1ForFork1_#t~switch42#1, thread_usbThread1of1ForFork1_#t~nondet41#1][19], [5#L1745-2true, thread_usbThread1of1ForFork1InUse, 2#ULTIMATE.startEXITtrue, 98#true, thread_ath9kThread1of1ForFork0NotInUse]) [2024-02-20 11:34:27,238 INFO L294 olderBase$Statistics]: this new event has 17 ancestors and is cut-off event [2024-02-20 11:34:27,238 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-02-20 11:34:27,238 INFO L297 olderBase$Statistics]: existing Event has 14 ancestors and is cut-off event [2024-02-20 11:34:27,239 INFO L297 olderBase$Statistics]: existing Event has 15 ancestors and is cut-off event [2024-02-20 11:34:27,570 INFO L124 PetriNetUnfolderBase]: 1734/3204 cut-off events. [2024-02-20 11:34:27,571 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-02-20 11:34:27,579 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 191. Compared 20518 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. [2024-02-20 11:34:27,595 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 48 selfloop transitions, 4 changer transitions 2/76 dead transitions. [2024-02-20 11:34:27,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 276 flow [2024-02-20 11:34:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2024-02-20 11:34:27,611 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-02-20 11:34:27,616 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -4 predicate places. [2024-02-20 11:34:27,616 INFO L507 AbstractCegarLoop]: Abstraction has has 63 places, 76 transitions, 276 flow [2024-02-20 11:34:27,617 INFO L508 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) [2024-02-20 11:34:27,617 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:27,617 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:27,617 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-20 11:34:27,618 INFO L432 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:27,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash -733731656, now seen corresponding path program 1 times [2024-02-20 11:34:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 11:34:27,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463537100] [2024-02-20 11:34:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:27,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 11:34:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:27,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 11:34:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463537100] [2024-02-20 11:34:27,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463537100] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:27,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:27,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824121473] [2024-02-20 11:34:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:27,792 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:27,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 11:34:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:27,803 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2024-02-20 11:34:27,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 76 transitions, 276 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) [2024-02-20 11:34:27,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:27,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2024-02-20 11:34:27,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:28,185 INFO L124 PetriNetUnfolderBase]: 1879/3334 cut-off events. [2024-02-20 11:34:28,185 INFO L125 PetriNetUnfolderBase]: For 440/476 co-relation queries the response was YES. [2024-02-20 11:34:28,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8909 conditions, 3334 events. 1879/3334 cut-off events. For 440/476 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 20393 event pairs, 1273 based on Foata normal form. 0/2823 useless extension candidates. Maximal degree in co-relation 8529. Up to 2684 conditions per place. [2024-02-20 11:34:28,206 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 62 selfloop transitions, 4 changer transitions 3/87 dead transitions. [2024-02-20 11:34:28,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 466 flow [2024-02-20 11:34:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2024-02-20 11:34:28,214 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5361111111111111 [2024-02-20 11:34:28,215 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-02-20 11:34:28,215 INFO L507 AbstractCegarLoop]: Abstraction has has 61 places, 87 transitions, 466 flow [2024-02-20 11:34:28,216 INFO L508 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) [2024-02-20 11:34:28,216 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:28,216 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:28,216 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-20 11:34:28,221 INFO L432 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:28,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:28,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1811761613, now seen corresponding path program 1 times [2024-02-20 11:34:28,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 11:34:28,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263884606] [2024-02-20 11:34:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:28,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 11:34:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:28,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 11:34:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263884606] [2024-02-20 11:34:28,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263884606] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:28,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:28,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654104836] [2024-02-20 11:34:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:28,331 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 11:34:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:28,334 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 120 [2024-02-20 11:34:28,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 87 transitions, 466 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) [2024-02-20 11:34:28,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:28,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 120 [2024-02-20 11:34:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:28,752 INFO L124 PetriNetUnfolderBase]: 2031/3359 cut-off events. [2024-02-20 11:34:28,752 INFO L125 PetriNetUnfolderBase]: For 1557/1605 co-relation queries the response was YES. [2024-02-20 11:34:28,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12202 conditions, 3359 events. 2031/3359 cut-off events. For 1557/1605 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 18657 event pairs, 1151 based on Foata normal form. 0/2906 useless extension candidates. Maximal degree in co-relation 11682. Up to 2835 conditions per place. [2024-02-20 11:34:28,779 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 56 selfloop transitions, 2 changer transitions 38/111 dead transitions. [2024-02-20 11:34:28,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 809 flow [2024-02-20 11:34:28,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2024-02-20 11:34:28,781 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5638888888888889 [2024-02-20 11:34:28,782 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-02-20 11:34:28,783 INFO L507 AbstractCegarLoop]: Abstraction has has 61 places, 111 transitions, 809 flow [2024-02-20 11:34:28,783 INFO L508 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) [2024-02-20 11:34:28,783 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:28,783 INFO L234 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:28,783 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-20 11:34:28,784 INFO L432 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:28,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:28,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1099198382, now seen corresponding path program 1 times [2024-02-20 11:34:28,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 11:34:28,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478200663] [2024-02-20 11:34:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 11:34:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:28,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 11:34:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478200663] [2024-02-20 11:34:28,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478200663] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:28,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:28,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:28,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051181674] [2024-02-20 11:34:28,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:28,903 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 11:34:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:28,918 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2024-02-20 11:34:28,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 111 transitions, 809 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) [2024-02-20 11:34:28,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:28,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2024-02-20 11:34:28,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:29,251 INFO L124 PetriNetUnfolderBase]: 1924/3222 cut-off events. [2024-02-20 11:34:29,251 INFO L125 PetriNetUnfolderBase]: For 3195/3333 co-relation queries the response was YES. [2024-02-20 11:34:29,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13799 conditions, 3222 events. 1924/3222 cut-off events. For 3195/3333 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 17939 event pairs, 432 based on Foata normal form. 222/3094 useless extension candidates. Maximal degree in co-relation 13162. Up to 2550 conditions per place. [2024-02-20 11:34:29,266 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2024-02-20 11:34:29,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 132 transitions, 1216 flow [2024-02-20 11:34:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-02-20 11:34:29,268 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5527777777777778 [2024-02-20 11:34:29,270 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -5 predicate places. [2024-02-20 11:34:29,271 INFO L507 AbstractCegarLoop]: Abstraction has has 62 places, 132 transitions, 1216 flow [2024-02-20 11:34:29,271 INFO L508 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) [2024-02-20 11:34:29,276 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2024-02-20 11:34:29,276 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2024-02-20 11:34:29,276 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2024-02-20 11:34:29,277 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2024-02-20 11:34:29,277 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2024-02-20 11:34:29,278 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2024-02-20 11:34:29,280 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2024-02-20 11:34:29,280 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-20 11:34:30,912 INFO L644 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 80736 in 1631261323ns [2024-02-20 11:34:30,934 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-02-20 11:34:30,940 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-20 11:34:31,261 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Multiple instances of thread not yet supported: [629] L1718-3-->$Ultimate##0: Formula: (and (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| 0) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| 0) (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 0)) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1] at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeUpdates(OwickiGriesUnpetrifier.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.(OwickiGriesUnpetrifier.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-02-20 11:34:31,266 INFO L158 Benchmark]: Toolchain (without parser) took 6746.91ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 97.5MB in the beginning and 136.9MB in the end (delta: -39.4MB). Peak memory consumption was 181.1MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,266 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-20 11:34:31,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 975.64ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 118.4MB in the end (delta: -21.0MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.58ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 114.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,267 INFO L158 Benchmark]: Boogie Preprocessor took 74.95ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 110.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,268 INFO L158 Benchmark]: RCFGBuilder took 719.67ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 63.9MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,268 INFO L158 Benchmark]: TraceAbstraction took 4876.05ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 63.3MB in the beginning and 136.9MB in the end (delta: -73.6MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. [2024-02-20 11:34:31,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 975.64ms. Allocated memory is still 155.2MB. Free memory was 97.5MB in the beginning and 118.4MB in the end (delta: -21.0MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.58ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 114.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.95ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 110.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 719.67ms. Allocated memory is still 155.2MB. Free memory was 110.1MB in the beginning and 63.9MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4876.05ms. Allocated memory was 155.2MB in the beginning and 362.8MB in the end (delta: 207.6MB). Free memory was 63.3MB in the beginning and 136.9MB in the end (delta: -73.6MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: [629] L1718-3-->$Ultimate##0: Formula: (and (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| 0) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| 0) (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 0)) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Multiple instances of thread not yet supported: [629] L1718-3-->$Ultimate##0: Formula: (and (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| 0) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| 0) (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 0)) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1]: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeUpdates(OwickiGriesUnpetrifier.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-02-20 11:34:31,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.owicki-witnesses-448d4d7-m [2024-02-20 11:34:33,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-20 11:34:33,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-02-20 11:34:33,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-20 11:34:33,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-20 11:34:33,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-20 11:34:33,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-20 11:34:33,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-20 11:34:33,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-20 11:34:33,691 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-20 11:34:33,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-20 11:34:33,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-20 11:34:33,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-20 11:34:33,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-20 11:34:33,694 INFO L153 SettingsManager]: * Use SBE=true [2024-02-20 11:34:33,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-20 11:34:33,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-20 11:34:33,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-20 11:34:33,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-20 11:34:33,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-20 11:34:33,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-20 11:34:33,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-20 11:34:33,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-20 11:34:33,697 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-02-20 11:34:33,697 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-02-20 11:34:33,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-20 11:34:33,698 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-02-20 11:34:33,698 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-20 11:34:33,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-20 11:34:33,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-20 11:34:33,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-20 11:34:33,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-20 11:34:33,700 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-20 11:34:33,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-20 11:34:33,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 11:34:33,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-20 11:34:33,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-20 11:34:33,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-20 11:34:33,702 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-02-20 11:34:33,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-02-20 11:34:33,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-20 11:34:33,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-20 11:34:33,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-20 11:34:33,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-20 11:34:33,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-20 11:34:33,704 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-02-20 11:34:33,704 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2024-02-20 11:34:34,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-20 11:34:34,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-20 11:34:34,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-20 11:34:34,046 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-20 11:34:34,047 INFO L274 PluginConnector]: CDTParser initialized [2024-02-20 11:34:34,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-20 11:34:35,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-20 11:34:35,690 INFO L384 CDTParser]: Found 1 translation units. [2024-02-20 11:34:35,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2024-02-20 11:34:35,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc11b02f6/e36a52fd0616466ca6a636ca1e35660d/FLAG2e2c11449 [2024-02-20 11:34:35,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc11b02f6/e36a52fd0616466ca6a636ca1e35660d [2024-02-20 11:34:35,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-20 11:34:35,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-20 11:34:35,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-20 11:34:35,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-20 11:34:35,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-20 11:34:35,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 11:34:35" (1/1) ... [2024-02-20 11:34:35,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2422e886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:35, skipping insertion in model container [2024-02-20 11:34:35,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 11:34:35" (1/1) ... [2024-02-20 11:34:35,818 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-20 11:34:36,408 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-02-20 11:34:36,451 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 11:34:36,471 INFO L202 MainTranslator]: Completed pre-run [2024-02-20 11:34:36,550 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2024-02-20 11:34:36,569 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 11:34:36,689 INFO L206 MainTranslator]: Completed translation [2024-02-20 11:34:36,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36 WrapperNode [2024-02-20 11:34:36,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-20 11:34:36,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-20 11:34:36,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-20 11:34:36,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-20 11:34:36,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,773 INFO L138 Inliner]: procedures = 491, calls = 44, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 205 [2024-02-20 11:34:36,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-20 11:34:36,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-20 11:34:36,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-20 11:34:36,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-20 11:34:36,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,829 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 3, 3, 5, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 1, 1, 5, 0, 0]. The 4 writes are split as follows [0, 1, 1, 0, 1, 1]. [2024-02-20 11:34:36,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-20 11:34:36,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-20 11:34:36,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-20 11:34:36,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-20 11:34:36,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (1/1) ... [2024-02-20 11:34:36,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 11:34:36,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-20 11:34:36,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-20 11:34:36,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-20 11:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-02-20 11:34:36,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-02-20 11:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-20 11:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-02-20 11:34:36,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-02-20 11:34:36,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-02-20 11:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-02-20 11:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-02-20 11:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-02-20 11:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-02-20 11:34:36,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-02-20 11:34:36,991 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-02-20 11:34:36,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-20 11:34:36,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-02-20 11:34:36,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-02-20 11:34:36,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-02-20 11:34:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-02-20 11:34:36,995 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-20 11:34:36,996 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-20 11:34:37,358 INFO L244 CfgBuilder]: Building ICFG [2024-02-20 11:34:37,360 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-20 11:34:37,706 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-20 11:34:37,707 INFO L293 CfgBuilder]: Performing block encoding [2024-02-20 11:34:37,887 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-20 11:34:37,887 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-02-20 11:34:37,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:34:37 BoogieIcfgContainer [2024-02-20 11:34:37,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-20 11:34:37,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-20 11:34:37,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-20 11:34:37,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-20 11:34:37,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 11:34:35" (1/3) ... [2024-02-20 11:34:37,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461c6729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:34:37, skipping insertion in model container [2024-02-20 11:34:37,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 11:34:36" (2/3) ... [2024-02-20 11:34:37,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461c6729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:34:37, skipping insertion in model container [2024-02-20 11:34:37,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:34:37" (3/3) ... [2024-02-20 11:34:37,898 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-02-20 11:34:37,914 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-20 11:34:37,915 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-20 11:34:37,915 INFO L635 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-20 11:34:37,976 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-02-20 11:34:38,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 120 transitions, 267 flow [2024-02-20 11:34:38,063 INFO L124 PetriNetUnfolderBase]: 28/120 cut-off events. [2024-02-20 11:34:38,063 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-20 11:34:38,068 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 353 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. [2024-02-20 11:34:38,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 120 transitions, 267 flow [2024-02-20 11:34:38,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 79 transitions, 174 flow [2024-02-20 11:34:38,080 INFO L368 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-20 11:34:38,085 INFO L369 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@1e3f2cd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-20 11:34:38,086 INFO L370 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-02-20 11:34:38,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-20 11:34:38,088 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-02-20 11:34:38,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-20 11:34:38,089 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:38,089 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-20 11:34:38,090 INFO L432 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:38,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:38,095 INFO L85 PathProgramCache]: Analyzing trace with hash 543245, now seen corresponding path program 1 times [2024-02-20 11:34:38,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-20 11:34:38,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740146418] [2024-02-20 11:34:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:38,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:38,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-20 11:34:38,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-20 11:34:38,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-02-20 11:34:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:38,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-20 11:34:38,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-20 11:34:38,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:38,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-20 11:34:38,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-20 11:34:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740146418] [2024-02-20 11:34:38,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740146418] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:38,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-20 11:34:38,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057258253] [2024-02-20 11:34:38,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:38,327 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:38,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-20 11:34:38,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:38,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:38,373 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 120 [2024-02-20 11:34:38,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 79 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-20 11:34:38,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:38,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 120 [2024-02-20 11:34:38,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:38,959 INFO L124 PetriNetUnfolderBase]: 1723/3200 cut-off events. [2024-02-20 11:34:38,960 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-02-20 11:34:38,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5794 conditions, 3200 events. 1723/3200 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 20511 event pairs, 1381 based on Foata normal form. 168/2841 useless extension candidates. Maximal degree in co-relation 5564. Up to 2528 conditions per place. [2024-02-20 11:34:38,986 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 46 selfloop transitions, 4 changer transitions 2/76 dead transitions. [2024-02-20 11:34:38,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 272 flow [2024-02-20 11:34:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-20 11:34:38,999 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5472222222222223 [2024-02-20 11:34:39,004 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -4 predicate places. [2024-02-20 11:34:39,004 INFO L507 AbstractCegarLoop]: Abstraction has has 63 places, 76 transitions, 272 flow [2024-02-20 11:34:39,005 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-20 11:34:39,005 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:39,005 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:39,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-02-20 11:34:39,211 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:39,211 INFO L432 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:39,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:39,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1800337319, now seen corresponding path program 1 times [2024-02-20 11:34:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-20 11:34:39,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496814685] [2024-02-20 11:34:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:39,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:39,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-20 11:34:39,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-20 11:34:39,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-02-20 11:34:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:39,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-20 11:34:39,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-20 11:34:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:39,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-20 11:34:39,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-20 11:34:39,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496814685] [2024-02-20 11:34:39,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496814685] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:39,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:39,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:39,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637102064] [2024-02-20 11:34:39,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:39,412 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:39,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-20 11:34:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:39,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:39,419 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 120 [2024-02-20 11:34:39,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 76 transitions, 272 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) [2024-02-20 11:34:39,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:39,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 120 [2024-02-20 11:34:39,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:39,848 INFO L124 PetriNetUnfolderBase]: 1733/3186 cut-off events. [2024-02-20 11:34:39,848 INFO L125 PetriNetUnfolderBase]: For 402/422 co-relation queries the response was YES. [2024-02-20 11:34:39,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8366 conditions, 3186 events. 1733/3186 cut-off events. For 402/422 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 19943 event pairs, 1267 based on Foata normal form. 78/2779 useless extension candidates. Maximal degree in co-relation 8035. Up to 2544 conditions per place. [2024-02-20 11:34:39,870 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 60 selfloop transitions, 4 changer transitions 3/87 dead transitions. [2024-02-20 11:34:39,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 87 transitions, 458 flow [2024-02-20 11:34:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:39,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-20 11:34:39,873 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5472222222222223 [2024-02-20 11:34:39,874 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-02-20 11:34:39,875 INFO L507 AbstractCegarLoop]: Abstraction has has 61 places, 87 transitions, 458 flow [2024-02-20 11:34:39,875 INFO L508 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) [2024-02-20 11:34:39,875 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:39,875 INFO L234 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:39,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-02-20 11:34:40,081 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:40,081 INFO L432 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:40,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:40,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1642606098, now seen corresponding path program 1 times [2024-02-20 11:34:40,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-20 11:34:40,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439883843] [2024-02-20 11:34:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:40,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-20 11:34:40,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-20 11:34:40,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-02-20 11:34:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:40,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2024-02-20 11:34:40,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-20 11:34:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:40,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-20 11:34:40,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-20 11:34:40,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439883843] [2024-02-20 11:34:40,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439883843] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:40,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:40,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:40,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871243809] [2024-02-20 11:34:40,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:40,272 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:40,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-20 11:34:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:40,276 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 120 [2024-02-20 11:34:40,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 87 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-02-20 11:34:40,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:40,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 120 [2024-02-20 11:34:40,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:40,686 INFO L124 PetriNetUnfolderBase]: 1733/3045 cut-off events. [2024-02-20 11:34:40,686 INFO L125 PetriNetUnfolderBase]: For 1149/1189 co-relation queries the response was YES. [2024-02-20 11:34:40,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10795 conditions, 3045 events. 1733/3045 cut-off events. For 1149/1189 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 17841 event pairs, 1138 based on Foata normal form. 82/2714 useless extension candidates. Maximal degree in co-relation 10360. Up to 2544 conditions per place. [2024-02-20 11:34:40,710 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 55 selfloop transitions, 2 changer transitions 38/111 dead transitions. [2024-02-20 11:34:40,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 799 flow [2024-02-20 11:34:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:40,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2024-02-20 11:34:40,713 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-02-20 11:34:40,713 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -6 predicate places. [2024-02-20 11:34:40,714 INFO L507 AbstractCegarLoop]: Abstraction has has 61 places, 111 transitions, 799 flow [2024-02-20 11:34:40,714 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-02-20 11:34:40,714 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 11:34:40,714 INFO L234 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 11:34:40,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-02-20 11:34:40,921 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:40,921 INFO L432 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2024-02-20 11:34:40,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 11:34:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1461547535, now seen corresponding path program 1 times [2024-02-20 11:34:40,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-02-20 11:34:40,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396760800] [2024-02-20 11:34:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 11:34:40,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:40,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-02-20 11:34:40,927 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-02-20 11:34:40,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-02-20 11:34:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 11:34:41,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2024-02-20 11:34:41,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-02-20 11:34:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 11:34:41,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-02-20 11:34:41,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-02-20 11:34:41,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396760800] [2024-02-20 11:34:41,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396760800] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 11:34:41,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 11:34:41,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-20 11:34:41,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084996476] [2024-02-20 11:34:41,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 11:34:41,128 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-20 11:34:41,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-02-20 11:34:41,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-20 11:34:41,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-20 11:34:41,142 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2024-02-20 11:34:41,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 111 transitions, 799 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) [2024-02-20 11:34:41,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 11:34:41,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2024-02-20 11:34:41,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 11:34:41,535 INFO L124 PetriNetUnfolderBase]: 1651/2929 cut-off events. [2024-02-20 11:34:41,535 INFO L125 PetriNetUnfolderBase]: For 2289/2463 co-relation queries the response was YES. [2024-02-20 11:34:41,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12245 conditions, 2929 events. 1651/2929 cut-off events. For 2289/2463 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 17191 event pairs, 419 based on Foata normal form. 216/2821 useless extension candidates. Maximal degree in co-relation 11709. Up to 2290 conditions per place. [2024-02-20 11:34:41,549 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2024-02-20 11:34:41,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 132 transitions, 1206 flow [2024-02-20 11:34:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-20 11:34:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-20 11:34:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-02-20 11:34:41,551 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5527777777777778 [2024-02-20 11:34:41,553 INFO L308 CegarLoopForPetriNet]: 67 programPoint places, -5 predicate places. [2024-02-20 11:34:41,553 INFO L507 AbstractCegarLoop]: Abstraction has has 62 places, 132 transitions, 1206 flow [2024-02-20 11:34:41,553 INFO L508 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) [2024-02-20 11:34:41,556 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2024-02-20 11:34:41,557 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2024-02-20 11:34:41,557 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2024-02-20 11:34:41,557 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2024-02-20 11:34:41,557 INFO L818 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2024-02-20 11:34:41,558 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2024-02-20 11:34:41,558 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2024-02-20 11:34:41,558 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-02-20 11:34:41,558 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2024-02-20 11:34:41,559 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2024-02-20 11:34:41,562 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2024-02-20 11:34:41,562 INFO L818 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2024-02-20 11:34:41,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-02-20 11:34:41,768 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-02-20 11:34:43,250 INFO L644 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 84518 in 1480614725ns [2024-02-20 11:34:43,269 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-02-20 11:34:43,274 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-20 11:34:43,560 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Multiple instances of thread not yet supported: [617] L1718-3-->$Ultimate##0: Formula: (and (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 (_ bv0 32)) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| (_ bv0 32)) (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| (_ bv0 32))) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1] at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeUpdates(OwickiGriesUnpetrifier.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.(OwickiGriesUnpetrifier.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-02-20 11:34:43,567 INFO L158 Benchmark]: Toolchain (without parser) took 7834.45ms. Allocated memory was 71.3MB in the beginning and 348.1MB in the end (delta: 276.8MB). Free memory was 32.2MB in the beginning and 135.1MB in the end (delta: -102.9MB). Peak memory consumption was 256.9MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,567 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-20 11:34:43,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 955.87ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 32.0MB in the beginning and 76.8MB in the end (delta: -44.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.00ms. Allocated memory is still 104.9MB. Free memory was 76.3MB in the beginning and 72.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,568 INFO L158 Benchmark]: Boogie Preprocessor took 122.78ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 66.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,569 INFO L158 Benchmark]: RCFGBuilder took 990.20ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 66.8MB in the end (delta: -23.7kB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,569 INFO L158 Benchmark]: TraceAbstraction took 5675.46ms. Allocated memory was 104.9MB in the beginning and 348.1MB in the end (delta: 243.3MB). Free memory was 66.0MB in the beginning and 135.1MB in the end (delta: -69.1MB). Peak memory consumption was 254.4MB. Max. memory is 16.1GB. [2024-02-20 11:34:43,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 955.87ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 32.0MB in the beginning and 76.8MB in the end (delta: -44.8MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.00ms. Allocated memory is still 104.9MB. Free memory was 76.3MB in the beginning and 72.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 122.78ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 66.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 990.20ms. Allocated memory is still 104.9MB. Free memory was 66.8MB in the beginning and 66.8MB in the end (delta: -23.7kB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5675.46ms. Allocated memory was 104.9MB in the beginning and 348.1MB in the end (delta: 243.3MB). Free memory was 66.0MB in the beginning and 135.1MB in the end (delta: -69.1MB). Peak memory consumption was 254.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: [617] L1718-3-->$Ultimate##0: Formula: (and (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 (_ bv0 32)) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| (_ bv0 32)) (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| (_ bv0 32))) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Multiple instances of thread not yet supported: [617] L1718-3-->$Ultimate##0: Formula: (and (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 (_ bv0 32)) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| (_ bv0 32)) (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| (_ bv0 32))) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1]: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.OwickiGriesUnpetrifier.computeUpdates(OwickiGriesUnpetrifier.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-02-20 11:34:43,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Multiple instances of thread not yet supported: [617] L1718-3-->$Ultimate##0: Formula: (and (= v_thread_ath9kThread1of1ForFork0_thidvar1_4 (_ bv0 32)) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6| (_ bv0 32)) (= |v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12| v_thread_ath9kThread1of1ForFork0_thidvar0_4) (= |v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6| (_ bv0 32))) InVars {thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|} OutVars{thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1_8|, thread_ath9kThread1of1ForFork0_#res#1.offset=|v_thread_ath9kThread1of1ForFork0_#res#1.offset_6|, thread_ath9kThread1of1ForFork0_thidvar0=v_thread_ath9kThread1of1ForFork0_thidvar0_4, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1_10|, thread_ath9kThread1of1ForFork0_thidvar1=v_thread_ath9kThread1of1ForFork0_thidvar1_4, thread_ath9kThread1of1ForFork0_#in~arg#1.base=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.base_6|, thread_ath9kThread1of1ForFork0_#t~switch34#1=|v_thread_ath9kThread1of1ForFork0_#t~switch34#1_18|, thread_ath9kThread1of1ForFork0_#in~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_#in~arg#1.offset_6|, thread_ath9kThread1of1ForFork0_~arg#1.base=|v_thread_ath9kThread1of1ForFork0_~arg#1.base_6|, thread_ath9kThread1of1ForFork0_~arg#1.offset=|v_thread_ath9kThread1of1ForFork0_~arg#1.offset_6|, thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1=|v_thread_usbThread1of1ForFork1_ieee80211_register_hw_#t~pre36#1_12|, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1_12|, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1=|v_thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1_12|, thread_ath9kThread1of1ForFork0_#res#1.base=|v_thread_ath9kThread1of1ForFork0_#res#1.base_6|, thread_ath9kThread1of1ForFork0_#t~nondet33#1=|v_thread_ath9kThread1of1ForFork0_#t~nondet33#1_10|} AuxVars[] AssignedVars[thread_ath9kThread1of1ForFork0_ldv_assert_#in~expression#1, thread_ath9kThread1of1ForFork0_#res#1.offset, thread_ath9kThread1of1ForFork0_thidvar0, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet32#1, thread_ath9kThread1of1ForFork0_thidvar1, thread_ath9kThread1of1ForFork0_#in~arg#1.base, thread_ath9kThread1of1ForFork0_#t~switch34#1, thread_ath9kThread1of1ForFork0_#in~arg#1.offset, thread_ath9kThread1of1ForFork0_~arg#1.base, thread_ath9kThread1of1ForFork0_~arg#1.offset, thread_ath9kThread1of1ForFork0_ldv_assert_~expression#1, thread_ath9kThread1of1ForFork0_ath9k_flush_#t~nondet31#1, thread_ath9kThread1of1ForFork0_#res#1.base, thread_ath9kThread1of1ForFork0_#t~nondet33#1]