./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/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 ../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.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.graphml --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 60bf15e9b8b40691c3d12ec2209fb62162b2aa1165919dc081eb8a26293a9638 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:11:41,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:11:41,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:11:41,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:11:41,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:11:41,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:11:41,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:11:41,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:11:41,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:11:41,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:11:41,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:11:41,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:11:41,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:11:41,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:11:41,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:11:41,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:11:41,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:11:41,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:11:41,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:11:41,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:11:41,195 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:11:41,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:11:41,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:11:41,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:11:41,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:11:41,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:11:41,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:11:41,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:11:41,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:11:41,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:11:41,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:11:41,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:11:41,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:11:41,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:11:41,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:11:41,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:11:41,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:11:41,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:11:41,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:11:41,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:11:41,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:11:41,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:11:41,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:11:41,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:11:41,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:11:41,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:11:41,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:11:41,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:11:41,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:11:41,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:11:41,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:11:41,245 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:11:41,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:11:41,246 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:11:41,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:11:41,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:11:41,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:11:41,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:11:41,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:11:41,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:11:41,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:11:41,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:11:41,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:11:41,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:11:41,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:11:41,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:11:41,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:11:41,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:11:41,249 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:11:41,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:11:41,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:11:41,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60bf15e9b8b40691c3d12ec2209fb62162b2aa1165919dc081eb8a26293a9638 [2022-07-12 10:11:41,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:11:41,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:11:41,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:11:41,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:11:41,505 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:11:41,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-07-12 10:11:41,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1b0a14/e702a03fe87f42c7ab89787dd1149a13/FLAG4151a2f92 [2022-07-12 10:11:42,156 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:11:42,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-07-12 10:11:42,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1b0a14/e702a03fe87f42c7ab89787dd1149a13/FLAG4151a2f92 [2022-07-12 10:11:42,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1b0a14/e702a03fe87f42c7ab89787dd1149a13 [2022-07-12 10:11:42,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:11:42,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:11:42,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:11:42,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:11:42,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:11:42,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:11:42" (1/1) ... [2022-07-12 10:11:42,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d72fc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:42, skipping insertion in model container [2022-07-12 10:11:42,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:11:42" (1/1) ... [2022-07-12 10:11:42,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:11:42,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:11:43,610 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i[178781,178794] [2022-07-12 10:11:43,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:11:43,770 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:11:43,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i[178781,178794] [2022-07-12 10:11:43,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:11:44,028 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:11:44,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44 WrapperNode [2022-07-12 10:11:44,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:11:44,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:11:44,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:11:44,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:11:44,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,284 INFO L137 Inliner]: procedures = 301, calls = 1106, calls flagged for inlining = 393, calls inlined = 454, statements flattened = 4627 [2022-07-12 10:11:44,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:11:44,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:11:44,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:11:44,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:11:44,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:11:44,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:11:44,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:11:44,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:11:44,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (1/1) ... [2022-07-12 10:11:44,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:11:44,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:11:44,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 10:11:44,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 10:11:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2022-07-12 10:11:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2022-07-12 10:11:44,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:11:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2022-07-12 10:11:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2022-07-12 10:11:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 10:11:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:11:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 10:11:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:11:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:11:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-12 10:11:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 10:11:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:11:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 10:11:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2022-07-12 10:11:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2022-07-12 10:11:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:11:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:11:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:11:44,613 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:11:45,192 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:11:45,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:11:48,587 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:11:48,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:11:48,625 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:11:48,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:11:48 BoogieIcfgContainer [2022-07-12 10:11:48,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:11:48,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:11:48,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:11:48,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:11:48,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:11:42" (1/3) ... [2022-07-12 10:11:48,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4e2f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:11:48, skipping insertion in model container [2022-07-12 10:11:48,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:11:44" (2/3) ... [2022-07-12 10:11:48,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4e2f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:11:48, skipping insertion in model container [2022-07-12 10:11:48,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:11:48" (3/3) ... [2022-07-12 10:11:48,638 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-07-12 10:11:48,643 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:11:48,651 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:11:48,651 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:11:48,652 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:11:49,404 INFO L135 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-07-12 10:11:49,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 5870 places, 6110 transitions, 12256 flow [2022-07-12 10:12:02,364 INFO L129 PetriNetUnfolder]: 422/9796 cut-off events. [2022-07-12 10:12:02,364 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-07-12 10:12:03,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9819 conditions, 9796 events. 422/9796 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 54915 event pairs, 0 based on Foata normal form. 0/9367 useless extension candidates. Maximal degree in co-relation 9233. Up to 26 conditions per place. [2022-07-12 10:12:03,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 5870 places, 6110 transitions, 12256 flow [2022-07-12 10:12:03,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 5818 places, 6056 transitions, 12136 flow [2022-07-12 10:12:03,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:12:03,311 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@61cb1c59, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1675dbe3 [2022-07-12 10:12:03,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-12 10:12:06,702 INFO L129 PetriNetUnfolder]: 160/4778 cut-off events. [2022-07-12 10:12:06,703 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-07-12 10:12:06,703 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:12:06,704 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:12:06,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_scenario_3Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ldv_insmod_4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-07-12 10:12:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:12:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 988107137, now seen corresponding path program 1 times [2022-07-12 10:12:06,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:12:06,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746672993] [2022-07-12 10:12:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:12:06,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:12:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:12:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:12:07,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:12:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746672993] [2022-07-12 10:12:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746672993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:12:07,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:12:07,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:12:07,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915279719] [2022-07-12 10:12:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:12:07,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:12:07,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:12:07,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:12:07,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:12:07,959 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 5605 out of 6112 [2022-07-12 10:12:08,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5818 places, 6056 transitions, 12136 flow. Second operand has 7 states, 7 states have (on average 5637.714285714285) internal successors, (39464), 7 states have internal predecessors, (39464), 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) [2022-07-12 10:12:08,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:12:08,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5605 of 6112 [2022-07-12 10:12:08,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand