./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 949424244b253eebe8c539a6549e978b334eb11066ed24813c344448dac2db32 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:34:12,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:34:12,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:34:12,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:34:12,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:34:12,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:34:12,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:34:12,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:34:12,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:34:12,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:34:12,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:34:12,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:34:12,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:34:12,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:34:12,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:34:12,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:34:12,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:34:12,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:34:12,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:34:12,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:34:12,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:34:12,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:34:12,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:34:12,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:34:12,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:34:12,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:34:12,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:34:12,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:34:12,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:34:12,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:34:12,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:34:12,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:34:12,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:34:12,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:34:12,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:34:12,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:34:12,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:34:12,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:34:12,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:34:12,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:34:12,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:34:12,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:34:12,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:34:12,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:34:12,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:34:12,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:34:12,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:34:12,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:34:12,821 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:34:12,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:34:12,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:34:12,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:34:12,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:34:12,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:34:12,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:34:12,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:34:12,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:34:12,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:34:12,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:34:12,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:34:12,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:34:12,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:34:12,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:34:12,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:34:12,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:34:12,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:34:12,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 949424244b253eebe8c539a6549e978b334eb11066ed24813c344448dac2db32 [2021-11-05 19:34:13,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:34:13,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:34:13,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:34:13,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:34:13,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:34:13,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2021-11-05 19:34:13,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a690cc708/c4dee7e81b2b400abff65ae085db8b83/FLAG10fe8acc5 [2021-11-05 19:34:14,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:34:14,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2021-11-05 19:34:14,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a690cc708/c4dee7e81b2b400abff65ae085db8b83/FLAG10fe8acc5 [2021-11-05 19:34:14,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a690cc708/c4dee7e81b2b400abff65ae085db8b83 [2021-11-05 19:34:14,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:34:14,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:34:14,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:34:14,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:34:14,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:34:14,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:34:14" (1/1) ... [2021-11-05 19:34:14,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637da497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:14, skipping insertion in model container [2021-11-05 19:34:14,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:34:14" (1/1) ... [2021-11-05 19:34:14,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:34:14,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:34:17,984 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i[422408,422421] [2021-11-05 19:34:18,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:34:18,135 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:34:18,773 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i[422408,422421] [2021-11-05 19:34:18,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:34:19,083 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:34:19,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19 WrapperNode [2021-11-05 19:34:19,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:34:19,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:34:19,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:34:19,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:34:19,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:19,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:20,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:34:20,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:34:20,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:34:20,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:34:20,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:20,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:20,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:20,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:21,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:21,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:21,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:21,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:34:21,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:34:21,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:34:21,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:34:21,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (1/1) ... [2021-11-05 19:34:21,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:34:21,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:34:21,633 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) [2021-11-05 19:34:21,712 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 [2021-11-05 19:34:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:34:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:34:21,748 INFO L130 BoogieDeclarations]: Found specification of procedure sdebug_queuecommand_lock_or_not [2021-11-05 19:34:21,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sdebug_queuecommand_lock_or_not [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:34:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_debug_queuecommand [2021-11-05 19:34:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_debug_queuecommand [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:34:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 19:34:21,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 19:34:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:34:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:34:21,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:35:52,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:35:52,612 INFO L299 CfgBuilder]: Removed 5351 assume(true) statements. [2021-11-05 19:35:52,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:52 BoogieIcfgContainer [2021-11-05 19:35:52,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:35:52,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:35:52,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:35:52,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:35:52,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:34:14" (1/3) ... [2021-11-05 19:35:52,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6877c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:52, skipping insertion in model container [2021-11-05 19:35:52,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:34:19" (2/3) ... [2021-11-05 19:35:52,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6877c1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:52, skipping insertion in model container [2021-11-05 19:35:52,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:52" (3/3) ... [2021-11-05 19:35:52,629 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--scsi_debug.ko-entry_point.cil.out.i [2021-11-05 19:35:52,634 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:35:52,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-05 19:35:52,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:35:52,719 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 19:35:52,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-05 19:35:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 5793 states, 5751 states have (on average 1.4637454355764214) internal successors, (8418), 5782 states have internal predecessors, (8418), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-05 19:35:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-05 19:35:52,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:35:52,840 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:35:52,840 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:35:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:35:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash -686855059, now seen corresponding path program 1 times [2021-11-05 19:35:52,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:35:52,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943493018] [2021-11-05 19:35:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:35:52,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:35:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:35:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:35:54,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:35:54,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943493018] [2021-11-05 19:35:54,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943493018] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:35:54,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:35:54,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:35:54,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348319325] [2021-11-05 19:35:54,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:35:54,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:35:54,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:35:54,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:35:54,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:35:54,373 INFO L87 Difference]: Start difference. First operand has 5793 states, 5751 states have (on average 1.4637454355764214) internal successors, (8418), 5782 states have internal predecessors, (8418), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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) [2021-11-05 19:35:54,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:35:54,609 INFO L93 Difference]: Finished difference Result 11582 states and 16866 transitions. [2021-11-05 19:35:54,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:35:54,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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) Word has length 323 [2021-11-05 19:35:54,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:35:54,661 INFO L225 Difference]: With dead ends: 11582 [2021-11-05 19:35:54,662 INFO L226 Difference]: Without dead ends: 5702 [2021-11-05 19:35:54,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:35:54,702 INFO L933 BasicCegarLoop]: 8248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8248 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:35:54,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8248 Invalid, 0 Unknown, 0 Unchecked, 15.92ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:35:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2021-11-05 19:35:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5702. [2021-11-05 19:35:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5661 states have (on average 1.4287228404875463) internal successors, (8088), 5691 states have internal predecessors, (8088), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-05 19:35:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 8102 transitions. [2021-11-05 19:35:54,966 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 8102 transitions. Word has length 323 [2021-11-05 19:35:54,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:35:54,969 INFO L470 AbstractCegarLoop]: Abstraction has 5702 states and 8102 transitions. [2021-11-05 19:35:54,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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) [2021-11-05 19:35:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 8102 transitions. [2021-11-05 19:35:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-05 19:35:54,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:35:54,976 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:35:54,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:35:54,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:35:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:35:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -783288695, now seen corresponding path program 1 times [2021-11-05 19:35:54,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:35:54,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337014899] [2021-11-05 19:35:54,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:35:54,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:35:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:35:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:35:56,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:35:56,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337014899] [2021-11-05 19:35:56,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337014899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:35:56,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:35:56,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:35:56,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373426295] [2021-11-05 19:35:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:35:56,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:35:56,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:35:56,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:35:56,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:35:56,162 INFO L87 Difference]: Start difference. First operand 5702 states and 8102 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2021-11-05 19:35:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:35:56,799 INFO L93 Difference]: Finished difference Result 16439 states and 23587 transitions. [2021-11-05 19:35:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:35:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) Word has length 323 [2021-11-05 19:35:56,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:35:56,865 INFO L225 Difference]: With dead ends: 16439 [2021-11-05 19:35:56,866 INFO L226 Difference]: Without dead ends: 11032 [2021-11-05 19:35:56,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:35:56,893 INFO L933 BasicCegarLoop]: 8108 mSDtfsCounter, 7991 mSDsluCounter, 7778 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7991 SdHoareTripleChecker+Valid, 15886 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.75ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 319.77ms IncrementalHoareTripleChecker+Time [2021-11-05 19:35:56,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7991 Valid, 15886 Invalid, 11 Unknown, 0 Unchecked, 35.75ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 319.77ms Time] [2021-11-05 19:35:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11032 states. [2021-11-05 19:35:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11032 to 10927. [2021-11-05 19:35:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10927 states, 10876 states have (on average 1.443177638837808) internal successors, (15696), 10906 states have internal predecessors, (15696), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-05 19:35:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10927 states to 10927 states and 15724 transitions. [2021-11-05 19:35:57,210 INFO L78 Accepts]: Start accepts. Automaton has 10927 states and 15724 transitions. Word has length 323 [2021-11-05 19:35:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:35:57,211 INFO L470 AbstractCegarLoop]: Abstraction has 10927 states and 15724 transitions. [2021-11-05 19:35:57,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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) [2021-11-05 19:35:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 10927 states and 15724 transitions. [2021-11-05 19:35:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-05 19:35:57,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:35:57,218 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:35:57,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:35:57,218 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:35:57,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:35:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash -981089314, now seen corresponding path program 1 times [2021-11-05 19:35:57,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:35:57,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192332860] [2021-11-05 19:35:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:35:57,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:35:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:35:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:35:58,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:35:58,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192332860] [2021-11-05 19:35:58,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192332860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:35:58,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:35:58,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:35:58,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794802511] [2021-11-05 19:35:58,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:35:58,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:35:58,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:35:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:35:58,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:35:58,091 INFO L87 Difference]: Start difference. First operand 10927 states and 15724 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-11-05 19:35:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:35:58,825 INFO L93 Difference]: Finished difference Result 31980 states and 46291 transitions. [2021-11-05 19:35:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:35:58,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) Word has length 328 [2021-11-05 19:35:58,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:35:58,941 INFO L225 Difference]: With dead ends: 31980 [2021-11-05 19:35:58,942 INFO L226 Difference]: Without dead ends: 21348 [2021-11-05 19:35:58,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:35:58,995 INFO L933 BasicCegarLoop]: 8153 mSDtfsCounter, 7914 mSDsluCounter, 7778 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 247.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7914 SdHoareTripleChecker+Valid, 15931 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.55ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 283.55ms IncrementalHoareTripleChecker+Time [2021-11-05 19:35:58,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7914 Valid, 15931 Invalid, 11 Unknown, 0 Unchecked, 26.55ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 283.55ms Time] [2021-11-05 19:35:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21348 states. [2021-11-05 19:35:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21348 to 21265. [2021-11-05 19:35:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21265 states, 21194 states have (on average 1.4518259884873077) internal successors, (30770), 21224 states have internal predecessors, (30770), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-05 19:35:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21265 states to 21265 states and 30826 transitions. [2021-11-05 19:35:59,836 INFO L78 Accepts]: Start accepts. Automaton has 21265 states and 30826 transitions. Word has length 328 [2021-11-05 19:35:59,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:35:59,837 INFO L470 AbstractCegarLoop]: Abstraction has 21265 states and 30826 transitions. [2021-11-05 19:35:59,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-11-05 19:35:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 21265 states and 30826 transitions. [2021-11-05 19:35:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-11-05 19:35:59,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:35:59,845 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:35:59,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:35:59,845 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:35:59,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:35:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1952172415, now seen corresponding path program 1 times [2021-11-05 19:35:59,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:35:59,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858895143] [2021-11-05 19:35:59,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:35:59,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:00,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:00,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858895143] [2021-11-05 19:36:00,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858895143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:00,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:00,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:36:00,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161011015] [2021-11-05 19:36:00,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:00,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:00,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:00,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:00,788 INFO L87 Difference]: Start difference. First operand 21265 states and 30826 transitions. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2021-11-05 19:36:02,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:02,199 INFO L93 Difference]: Finished difference Result 45267 states and 65793 transitions. [2021-11-05 19:36:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:02,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) Word has length 331 [2021-11-05 19:36:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:02,297 INFO L225 Difference]: With dead ends: 45267 [2021-11-05 19:36:02,297 INFO L226 Difference]: Without dead ends: 24297 [2021-11-05 19:36:02,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:02,372 INFO L933 BasicCegarLoop]: 8101 mSDtfsCounter, 1551 mSDsluCounter, 7688 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 680.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 15789 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.50ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 749.18ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:02,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 15789 Invalid, 95 Unknown, 0 Unchecked, 20.50ms Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 749.18ms Time] [2021-11-05 19:36:02,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24297 states. [2021-11-05 19:36:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24297 to 24277. [2021-11-05 19:36:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24277 states, 24206 states have (on average 1.454598033545402) internal successors, (35210), 24236 states have internal predecessors, (35210), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-05 19:36:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24277 states to 24277 states and 35266 transitions. [2021-11-05 19:36:03,017 INFO L78 Accepts]: Start accepts. Automaton has 24277 states and 35266 transitions. Word has length 331 [2021-11-05 19:36:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:03,018 INFO L470 AbstractCegarLoop]: Abstraction has 24277 states and 35266 transitions. [2021-11-05 19:36:03,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2021-11-05 19:36:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 24277 states and 35266 transitions. [2021-11-05 19:36:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-05 19:36:03,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:03,024 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:03,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:36:03,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash 106410891, now seen corresponding path program 1 times [2021-11-05 19:36:03,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:03,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236883882] [2021-11-05 19:36:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:03,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:03,408 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:03,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43592431] [2021-11-05 19:36:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:03,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:03,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:03,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:03,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 19:36:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:07,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 12987 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 19:36:07,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:36:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:10,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:36:10,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:10,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236883882] [2021-11-05 19:36:10,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:36:10,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43592431] [2021-11-05 19:36:10,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43592431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:10,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:10,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:36:10,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553398465] [2021-11-05 19:36:10,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:10,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:10,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:10,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:10,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:10,648 INFO L87 Difference]: Start difference. First operand 24277 states and 35266 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) [2021-11-05 19:36:11,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:11,573 INFO L93 Difference]: Finished difference Result 72233 states and 105208 transitions. [2021-11-05 19:36:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:11,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) Word has length 343 [2021-11-05 19:36:11,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:11,805 INFO L225 Difference]: With dead ends: 72233 [2021-11-05 19:36:11,805 INFO L226 Difference]: Without dead ends: 48251 [2021-11-05 19:36:11,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:11,903 INFO L933 BasicCegarLoop]: 8124 mSDtfsCounter, 7766 mSDsluCounter, 7774 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7766 SdHoareTripleChecker+Valid, 15898 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.94ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.04ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:11,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7766 Valid, 15898 Invalid, 23 Unknown, 0 Unchecked, 24.94ms Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 96.04ms Time] [2021-11-05 19:36:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48251 states. [2021-11-05 19:36:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48251 to 48189. [2021-11-05 19:36:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48189 states, 48078 states have (on average 1.4566745704896211) internal successors, (70034), 48108 states have internal predecessors, (70034), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (84), 56 states have call predecessors, (84), 56 states have call successors, (84) [2021-11-05 19:36:13,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48189 states to 48189 states and 70174 transitions. [2021-11-05 19:36:13,261 INFO L78 Accepts]: Start accepts. Automaton has 48189 states and 70174 transitions. Word has length 343 [2021-11-05 19:36:13,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:13,262 INFO L470 AbstractCegarLoop]: Abstraction has 48189 states and 70174 transitions. [2021-11-05 19:36:13,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) [2021-11-05 19:36:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 48189 states and 70174 transitions. [2021-11-05 19:36:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-05 19:36:13,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:13,268 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:13,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 19:36:13,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:13,492 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -702935735, now seen corresponding path program 1 times [2021-11-05 19:36:13,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:13,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806899807] [2021-11-05 19:36:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:13,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:14,231 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:14,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963501981] [2021-11-05 19:36:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:14,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:14,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:14,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:14,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 19:36:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:17,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 12987 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 19:36:17,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:36:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:20,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:36:20,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:20,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806899807] [2021-11-05 19:36:20,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:36:20,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963501981] [2021-11-05 19:36:20,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963501981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:20,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:20,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:36:20,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867976732] [2021-11-05 19:36:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:20,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:20,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:20,812 INFO L87 Difference]: Start difference. First operand 48189 states and 70174 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) [2021-11-05 19:36:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:22,299 INFO L93 Difference]: Finished difference Result 142265 states and 207848 transitions. [2021-11-05 19:36:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) Word has length 343 [2021-11-05 19:36:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:22,875 INFO L225 Difference]: With dead ends: 142265 [2021-11-05 19:36:22,875 INFO L226 Difference]: Without dead ends: 94371 [2021-11-05 19:36:23,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:23,003 INFO L933 BasicCegarLoop]: 8104 mSDtfsCounter, 7666 mSDsluCounter, 7591 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7666 SdHoareTripleChecker+Valid, 15695 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.40ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.88ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:23,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7666 Valid, 15695 Invalid, 46 Unknown, 0 Unchecked, 19.40ms Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 175.88ms Time] [2021-11-05 19:36:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94371 states. [2021-11-05 19:36:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94371 to 94325. [2021-11-05 19:36:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94325 states, 94134 states have (on average 1.4589627552212803) internal successors, (137338), 94164 states have internal predecessors, (137338), 112 states have call successors, (112), 48 states have call predecessors, (112), 48 states have return successors, (252), 112 states have call predecessors, (252), 112 states have call successors, (252) [2021-11-05 19:36:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94325 states to 94325 states and 137702 transitions. [2021-11-05 19:36:25,765 INFO L78 Accepts]: Start accepts. Automaton has 94325 states and 137702 transitions. Word has length 343 [2021-11-05 19:36:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:25,765 INFO L470 AbstractCegarLoop]: Abstraction has 94325 states and 137702 transitions. [2021-11-05 19:36:25,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 2 states have internal predecessors, (343), 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) [2021-11-05 19:36:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 94325 states and 137702 transitions. [2021-11-05 19:36:25,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-05 19:36:25,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:25,772 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:25,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 19:36:25,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-05 19:36:26,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:26,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1934641486, now seen corresponding path program 1 times [2021-11-05 19:36:26,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:26,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265900281] [2021-11-05 19:36:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:26,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:26,657 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:26,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027144664] [2021-11-05 19:36:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:26,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:26,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:26,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:26,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 19:36:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:30,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 12986 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 19:36:30,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:36:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:33,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:36:33,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:33,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265900281] [2021-11-05 19:36:33,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:36:33,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027144664] [2021-11-05 19:36:33,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027144664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:33,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:33,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:36:33,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373336214] [2021-11-05 19:36:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:33,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:33,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:33,063 INFO L87 Difference]: Start difference. First operand 94325 states and 137702 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) [2021-11-05 19:36:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:34,910 INFO L93 Difference]: Finished difference Result 188355 states and 275089 transitions. [2021-11-05 19:36:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:34,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) Word has length 344 [2021-11-05 19:36:34,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:35,422 INFO L225 Difference]: With dead ends: 188355 [2021-11-05 19:36:35,423 INFO L226 Difference]: Without dead ends: 94325 [2021-11-05 19:36:35,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:35,649 INFO L933 BasicCegarLoop]: 8094 mSDtfsCounter, 7767 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7767 SdHoareTripleChecker+Valid, 8094 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.29ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:35,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7767 Valid, 8094 Invalid, 7 Unknown, 0 Unchecked, 9.42ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 34.29ms Time] [2021-11-05 19:36:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94325 states. [2021-11-05 19:36:37,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94325 to 94325. [2021-11-05 19:36:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94325 states, 94134 states have (on average 1.4586228142860178) internal successors, (137306), 94164 states have internal predecessors, (137306), 112 states have call successors, (112), 48 states have call predecessors, (112), 48 states have return successors, (252), 112 states have call predecessors, (252), 112 states have call successors, (252) [2021-11-05 19:36:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94325 states to 94325 states and 137670 transitions. [2021-11-05 19:36:38,219 INFO L78 Accepts]: Start accepts. Automaton has 94325 states and 137670 transitions. Word has length 344 [2021-11-05 19:36:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:38,221 INFO L470 AbstractCegarLoop]: Abstraction has 94325 states and 137670 transitions. [2021-11-05 19:36:38,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) [2021-11-05 19:36:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 94325 states and 137670 transitions. [2021-11-05 19:36:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-11-05 19:36:38,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:38,238 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:38,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 19:36:38,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:38,452 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:38,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1541614476, now seen corresponding path program 1 times [2021-11-05 19:36:38,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:38,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671309126] [2021-11-05 19:36:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:38,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:39,192 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:39,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240453238] [2021-11-05 19:36:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:39,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:39,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:39,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:39,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 19:36:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:42,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 12984 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 19:36:42,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:36:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:45,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:36:45,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:45,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671309126] [2021-11-05 19:36:45,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:36:45,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240453238] [2021-11-05 19:36:45,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240453238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:45,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:45,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:36:45,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670327397] [2021-11-05 19:36:45,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:45,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:45,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:45,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:45,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:45,099 INFO L87 Difference]: Start difference. First operand 94325 states and 137670 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) [2021-11-05 19:36:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:47,022 INFO L93 Difference]: Finished difference Result 188355 states and 275025 transitions. [2021-11-05 19:36:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) Word has length 344 [2021-11-05 19:36:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:47,316 INFO L225 Difference]: With dead ends: 188355 [2021-11-05 19:36:47,316 INFO L226 Difference]: Without dead ends: 94325 [2021-11-05 19:36:47,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:47,485 INFO L933 BasicCegarLoop]: 8094 mSDtfsCounter, 7761 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7761 SdHoareTripleChecker+Valid, 8094 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.69ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:47,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7761 Valid, 8094 Invalid, 6 Unknown, 0 Unchecked, 8.33ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 25.69ms Time] [2021-11-05 19:36:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94325 states. [2021-11-05 19:36:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94325 to 94325. [2021-11-05 19:36:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94325 states, 94134 states have (on average 1.4579429324154929) internal successors, (137242), 94164 states have internal predecessors, (137242), 112 states have call successors, (112), 48 states have call predecessors, (112), 48 states have return successors, (252), 112 states have call predecessors, (252), 112 states have call successors, (252) [2021-11-05 19:36:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94325 states to 94325 states and 137606 transitions. [2021-11-05 19:36:49,522 INFO L78 Accepts]: Start accepts. Automaton has 94325 states and 137606 transitions. Word has length 344 [2021-11-05 19:36:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:49,523 INFO L470 AbstractCegarLoop]: Abstraction has 94325 states and 137606 transitions. [2021-11-05 19:36:49,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 2 states have internal predecessors, (344), 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) [2021-11-05 19:36:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 94325 states and 137606 transitions. [2021-11-05 19:36:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-05 19:36:49,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:49,528 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:49,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-05 19:36:49,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:49,729 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:49,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:49,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2034756960, now seen corresponding path program 1 times [2021-11-05 19:36:49,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:49,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854768733] [2021-11-05 19:36:49,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:49,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:50,493 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:50,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692928776] [2021-11-05 19:36:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:50,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:50,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:50,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:50,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 19:36:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:36:53,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 12983 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 19:36:53,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:36:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:36:54,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 19:36:54,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:36:54,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854768733] [2021-11-05 19:36:54,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 19:36:54,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692928776] [2021-11-05 19:36:54,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692928776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:36:54,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:36:54,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:36:54,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122570811] [2021-11-05 19:36:54,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:36:54,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:36:54,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:36:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:36:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:54,245 INFO L87 Difference]: Start difference. First operand 94325 states and 137606 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2021-11-05 19:36:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:36:56,410 INFO L93 Difference]: Finished difference Result 194531 states and 284207 transitions. [2021-11-05 19:36:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:36:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) Word has length 345 [2021-11-05 19:36:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:36:56,658 INFO L225 Difference]: With dead ends: 194531 [2021-11-05 19:36:56,658 INFO L226 Difference]: Without dead ends: 100501 [2021-11-05 19:36:56,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:36:56,797 INFO L933 BasicCegarLoop]: 9648 mSDtfsCounter, 2040 mSDsluCounter, 7602 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 17250 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.96ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.34ms IncrementalHoareTripleChecker+Time [2021-11-05 19:36:56,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2042 Valid, 17250 Invalid, 25 Unknown, 0 Unchecked, 15.96ms Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 97.34ms Time] [2021-11-05 19:36:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100501 states. [2021-11-05 19:36:58,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100501 to 94485. [2021-11-05 19:36:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94485 states, 94294 states have (on average 1.4568265213057034) internal successors, (137370), 94324 states have internal predecessors, (137370), 112 states have call successors, (112), 48 states have call predecessors, (112), 48 states have return successors, (252), 112 states have call predecessors, (252), 112 states have call successors, (252) [2021-11-05 19:36:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94485 states to 94485 states and 137734 transitions. [2021-11-05 19:36:59,010 INFO L78 Accepts]: Start accepts. Automaton has 94485 states and 137734 transitions. Word has length 345 [2021-11-05 19:36:59,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:36:59,011 INFO L470 AbstractCegarLoop]: Abstraction has 94485 states and 137734 transitions. [2021-11-05 19:36:59,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2021-11-05 19:36:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 94485 states and 137734 transitions. [2021-11-05 19:36:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-05 19:36:59,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:36:59,016 INFO L514 BasicCegarLoop]: 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] [2021-11-05 19:36:59,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-05 19:36:59,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:59,244 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [scsi_debug_queuecommandErr0ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr1ASSERT_VIOLATIONERROR_FUNCTION, scsi_debug_queuecommandErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-05 19:36:59,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:36:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1525283870, now seen corresponding path program 1 times [2021-11-05 19:36:59,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:36:59,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947121265] [2021-11-05 19:36:59,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:59,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:36:59,615 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 19:36:59,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374149277] [2021-11-05 19:36:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:36:59,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:36:59,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:36:59,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:36:59,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process