./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.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 92cb918a49bd861dcff82a05c4e06551bd9d0c0cbb9eb8fadf6410a0f7818165 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:51:10,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:51:10,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:51:10,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:51:10,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:51:10,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:51:10,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:51:10,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:51:10,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:51:10,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:51:10,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:51:10,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:51:10,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:51:10,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:51:10,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:51:10,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:51:10,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:51:10,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:51:10,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:51:10,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:51:10,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:51:10,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:51:10,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:51:10,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:51:10,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:51:10,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:51:10,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:51:10,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:51:10,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:51:10,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:51:10,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:51:10,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:51:10,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:51:10,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:51:10,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:51:10,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:51:10,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:51:10,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:51:10,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:51:10,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:51:10,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:51:10,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:51:10,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:51:10,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:51:10,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:51:10,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:51:10,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:51:10,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:51:10,684 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:51:10,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:51:10,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:51:10,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:51:10,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:51:10,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:51:10,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:51:10,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:51:10,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:51:10,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:51:10,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:51:10,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:51:10,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:51:10,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92cb918a49bd861dcff82a05c4e06551bd9d0c0cbb9eb8fadf6410a0f7818165 [2021-11-06 14:51:10,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:51:10,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:51:10,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:51:10,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:51:10,891 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:51:10,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:10,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d84c80e8/b5512bcf89ed410898d4e3a7ee0a4693/FLAG9ec606987 [2021-11-06 14:51:11,520 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:51:11,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:11,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d84c80e8/b5512bcf89ed410898d4e3a7ee0a4693/FLAG9ec606987 [2021-11-06 14:51:11,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d84c80e8/b5512bcf89ed410898d4e3a7ee0a4693 [2021-11-06 14:51:11,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:51:11,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:51:11,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:51:11,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:51:11,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:51:11,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:51:11" (1/1) ... [2021-11-06 14:51:11,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42975c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:11, skipping insertion in model container [2021-11-06 14:51:11,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:51:11" (1/1) ... [2021-11-06 14:51:11,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:51:12,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:51:12,402 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2021-11-06 14:51:12,403 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2021-11-06 14:51:12,530 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i[111905,111918] [2021-11-06 14:51:12,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:51:12,844 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:51:12,941 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2021-11-06 14:51:12,942 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2021-11-06 14:51:12,947 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i[111905,111918] [2021-11-06 14:51:13,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:51:13,057 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:51:13,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13 WrapperNode [2021-11-06 14:51:13,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:51:13,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:51:13,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:51:13,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:51:13,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:51:13,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:51:13,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:51:13,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:51:13,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:51:13,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:51:13,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:51:13,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:51:13,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (1/1) ... [2021-11-06 14:51:13,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:51:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:51:13,427 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) [2021-11-06 14:51:13,433 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 [2021-11-06 14:51:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:51:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:51:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:51:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:51:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:51:15,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:51:15,911 INFO L299 CfgBuilder]: Removed 589 assume(true) statements. [2021-11-06 14:51:15,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:15 BoogieIcfgContainer [2021-11-06 14:51:15,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:51:15,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:51:15,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:51:15,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:51:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:51:11" (1/3) ... [2021-11-06 14:51:15,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635feb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:51:15, skipping insertion in model container [2021-11-06 14:51:15,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:13" (2/3) ... [2021-11-06 14:51:15,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635feb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:51:15, skipping insertion in model container [2021-11-06 14:51:15,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:15" (3/3) ... [2021-11-06 14:51:15,918 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:15,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:51:15,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-06 14:51:15,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:51:15,952 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 [2021-11-06 14:51:15,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-06 14:51:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 601 states have (on average 1.4276206322795342) internal successors, (858), 605 states have internal predecessors, (858), 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) [2021-11-06 14:51:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 14:51:15,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:15,973 INFO L513 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] [2021-11-06 14:51:15,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash -345089639, now seen corresponding path program 1 times [2021-11-06 14:51:15,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:51:15,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712122852] [2021-11-06 14:51:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:15,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:51:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:16,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:51:16,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712122852] [2021-11-06 14:51:16,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712122852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:16,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:16,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:51:16,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960468039] [2021-11-06 14:51:16,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:16,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:51:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,297 INFO L87 Difference]: Start difference. First operand has 606 states, 601 states have (on average 1.4276206322795342) internal successors, (858), 605 states have internal predecessors, (858), 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) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 14:51:16,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:16,453 INFO L93 Difference]: Finished difference Result 1648 states and 2342 transitions. [2021-11-06 14:51:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:16,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-06 14:51:16,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:16,470 INFO L225 Difference]: With dead ends: 1648 [2021-11-06 14:51:16,470 INFO L226 Difference]: Without dead ends: 1018 [2021-11-06 14:51:16,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2021-11-06 14:51:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1014. [2021-11-06 14:51:16,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1010 states have (on average 1.4) internal successors, (1414), 1013 states have internal predecessors, (1414), 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) [2021-11-06 14:51:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1414 transitions. [2021-11-06 14:51:16,545 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1414 transitions. Word has length 30 [2021-11-06 14:51:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:16,546 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1414 transitions. [2021-11-06 14:51:16,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 14:51:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1414 transitions. [2021-11-06 14:51:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 14:51:16,551 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:16,552 INFO L513 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] [2021-11-06 14:51:16,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:51:16,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:16,554 INFO L85 PathProgramCache]: Analyzing trace with hash -501809799, now seen corresponding path program 1 times [2021-11-06 14:51:16,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:51:16,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247678059] [2021-11-06 14:51:16,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:16,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:51:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:16,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:51:16,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247678059] [2021-11-06 14:51:16,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247678059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:16,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:16,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:51:16,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55270786] [2021-11-06 14:51:16,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:16,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:51:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:16,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,665 INFO L87 Difference]: Start difference. First operand 1014 states and 1414 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 14:51:16,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:16,802 INFO L93 Difference]: Finished difference Result 2320 states and 3238 transitions. [2021-11-06 14:51:16,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:16,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-06 14:51:16,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:16,806 INFO L225 Difference]: With dead ends: 2320 [2021-11-06 14:51:16,806 INFO L226 Difference]: Without dead ends: 1336 [2021-11-06 14:51:16,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2021-11-06 14:51:16,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1322. [2021-11-06 14:51:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1318 states have (on average 1.3975720789074355) internal successors, (1842), 1321 states have internal predecessors, (1842), 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) [2021-11-06 14:51:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1842 transitions. [2021-11-06 14:51:16,827 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1842 transitions. Word has length 40 [2021-11-06 14:51:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:16,827 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1842 transitions. [2021-11-06 14:51:16,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 14:51:16,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1842 transitions. [2021-11-06 14:51:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 14:51:16,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:16,829 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:16,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:51:16,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1114337862, now seen corresponding path program 1 times [2021-11-06 14:51:16,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:51:16,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454809359] [2021-11-06 14:51:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:16,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:51:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:16,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:51:16,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454809359] [2021-11-06 14:51:16,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454809359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:16,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:16,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 14:51:16,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473730139] [2021-11-06 14:51:16,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:16,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:51:16,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:16,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,922 INFO L87 Difference]: Start difference. First operand 1322 states and 1842 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-11-06 14:51:16,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:16,959 INFO L93 Difference]: Finished difference Result 1322 states and 1842 transitions. [2021-11-06 14:51:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:16,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 48 [2021-11-06 14:51:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:16,964 INFO L225 Difference]: With dead ends: 1322 [2021-11-06 14:51:16,964 INFO L226 Difference]: Without dead ends: 1318 [2021-11-06 14:51:16,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2021-11-06 14:51:16,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2021-11-06 14:51:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1316 states have (on average 1.3951367781155015) internal successors, (1836), 1317 states have internal predecessors, (1836), 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) [2021-11-06 14:51:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1836 transitions. [2021-11-06 14:51:16,986 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1836 transitions. Word has length 48 [2021-11-06 14:51:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:16,987 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 1836 transitions. [2021-11-06 14:51:16,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-11-06 14:51:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1836 transitions. [2021-11-06 14:51:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 14:51:16,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:16,989 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:16,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 14:51:16,990 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1653029978, now seen corresponding path program 1 times [2021-11-06 14:51:16,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:51:16,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528182257] [2021-11-06 14:51:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:16,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:51:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:17,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:51:17,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528182257] [2021-11-06 14:51:17,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528182257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:17,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:17,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:51:17,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72064282] [2021-11-06 14:51:17,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:17,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:51:17,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:17,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:17,064 INFO L87 Difference]: Start difference. First operand 1318 states and 1836 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-06 14:51:17,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:17,147 INFO L93 Difference]: Finished difference Result 3790 states and 5308 transitions. [2021-11-06 14:51:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 58 [2021-11-06 14:51:17,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:17,155 INFO L225 Difference]: With dead ends: 3790 [2021-11-06 14:51:17,155 INFO L226 Difference]: Without dead ends: 2502 [2021-11-06 14:51:17,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2021-11-06 14:51:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1322. [2021-11-06 14:51:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1320 states have (on average 1.3909090909090909) internal successors, (1836), 1321 states have internal predecessors, (1836), 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) [2021-11-06 14:51:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1836 transitions. [2021-11-06 14:51:17,186 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1836 transitions. Word has length 58 [2021-11-06 14:51:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:17,187 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1836 transitions. [2021-11-06 14:51:17,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-06 14:51:17,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1836 transitions. [2021-11-06 14:51:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 14:51:17,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:17,189 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:17,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 14:51:17,189 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:17,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1260002968, now seen corresponding path program 1 times [2021-11-06 14:51:17,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:51:17,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442608136] [2021-11-06 14:51:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:17,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:51:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 14:51:17,454 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 14:51:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 14:51:17,725 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-06 14:51:17,725 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 14:51:17,726 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:51:17,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:51:17,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:51:17,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:51:17,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 14:51:17,729 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-06 14:51:17,731 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 14:51:17,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 02:51:17 BoogieIcfgContainer [2021-11-06 14:51:17,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 14:51:17,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 14:51:17,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 14:51:17,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 14:51:17,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:15" (3/4) ... [2021-11-06 14:51:17,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 14:51:17,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 14:51:17,869 INFO L168 Benchmark]: Toolchain (without parser) took 5903.96 ms. Allocated memory was 142.6 MB in the beginning and 329.3 MB in the end (delta: 186.6 MB). Free memory was 99.9 MB in the beginning and 129.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 158.5 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,869 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 77.6 MB. Free memory is still 35.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 14:51:17,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1092.59 ms. Allocated memory was 142.6 MB in the beginning and 192.9 MB in the end (delta: 50.3 MB). Free memory was 99.9 MB in the beginning and 116.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.27 ms. Allocated memory is still 192.9 MB. Free memory was 115.4 MB in the beginning and 97.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,870 INFO L168 Benchmark]: Boogie Preprocessor took 159.14 ms. Allocated memory is still 192.9 MB. Free memory was 97.6 MB in the beginning and 130.5 MB in the end (delta: -32.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,871 INFO L168 Benchmark]: RCFGBuilder took 2528.47 ms. Allocated memory was 192.9 MB in the beginning and 329.3 MB in the end (delta: 136.3 MB). Free memory was 130.5 MB in the beginning and 118.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 154.8 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,871 INFO L168 Benchmark]: TraceAbstraction took 1951.35 ms. Allocated memory is still 329.3 MB. Free memory was 118.4 MB in the beginning and 129.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. [2021-11-06 14:51:17,871 INFO L168 Benchmark]: Witness Printer took 2.61 ms. Allocated memory is still 329.3 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 14:51:17,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 77.6 MB. Free memory is still 35.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1092.59 ms. Allocated memory was 142.6 MB in the beginning and 192.9 MB in the end (delta: 50.3 MB). Free memory was 99.9 MB in the beginning and 116.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 164.27 ms. Allocated memory is still 192.9 MB. Free memory was 115.4 MB in the beginning and 97.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 159.14 ms. Allocated memory is still 192.9 MB. Free memory was 97.6 MB in the beginning and 130.5 MB in the end (delta: -32.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2528.47 ms. Allocated memory was 192.9 MB in the beginning and 329.3 MB in the end (delta: 136.3 MB). Free memory was 130.5 MB in the beginning and 118.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 154.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1951.35 ms. Allocated memory is still 329.3 MB. Free memory was 118.4 MB in the beginning and 129.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.61 ms. Allocated memory is still 329.3 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5883, overapproximation of bitwiseAnd at line 6549. Possible FailurePath: [L4010] int ldv_irq_1_2 = 0; [L4011] int LDV_IN_INTERRUPT = 1; [L4012] int ldv_irq_1_3 = 0; [L4013] void *ldv_irq_data_1_1 ; [L4014] int ldv_irq_1_1 = 0; [L4015] int ldv_irq_1_0 = 0; [L4016] struct urb *max3421_hcd_desc_group0 ; [L4017] int ldv_irq_line_1_3 ; [L4018] void *ldv_irq_data_1_0 ; [L4019] int ldv_state_variable_0 ; [L4020] struct usb_hcd *max3421_hcd_desc_group1 ; [L4021] int ldv_state_variable_3 ; [L4022] int ldv_irq_line_1_0 ; [L4023] int ldv_state_variable_2 ; [L4024] void *ldv_irq_data_1_3 ; [L4025] struct spi_device *max3421_driver_group0 ; [L4026] int ref_cnt ; [L4027] int ldv_irq_line_1_1 ; [L4028] void *ldv_irq_data_1_2 ; [L4029] int ldv_state_variable_1 ; [L4030] int ldv_irq_line_1_2 ; [L4208] static struct max3421_hcd *max3421_hcd_list ; [L4209-L4213] static int const hrsl_to_error[16U] = { 0, -22, -22, -22, -11, -32, -84, -71, -121, -71, -71, -84, -5, -5, -62, -75}; [L5882-L5888] static struct hc_driver max3421_hcd_desc = {"max3421", "MAX3421 USB Host-Controller Driver", 192UL, 0, 16, & max3421_reset, & max3421_start, 0, 0, & max3421_stop, 0, & max3421_get_frame_number, & max3421_urb_enqueue, & max3421_urb_dequeue, & max3421_map_urb_for_dma, & max3421_unmap_urb_for_dma, & max3421_endpoint_disable, 0, & max3421_hub_status_data, & max3421_hub_control, & max3421_bus_suspend, & max3421_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6027-L6029] static struct spi_driver max3421_driver = {0, & max3421_probe, & max3421_remove, 0, 0, 0, {"max3421-hcd", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L6045] int ldv_retval_0 ; [L6046] int ldv_retval_1 ; [L6049] int ldv_retval_2 ; [L6545] int ldv_spin = 0; VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6194] char *ldvarg7 ; [L6195] void *tmp ; [L6196] u16 ldvarg3 ; [L6197] u16 tmp___0 ; [L6198] u16 ldvarg0 ; [L6199] u16 tmp___1 ; [L6200] gfp_t ldvarg5 ; [L6201] gfp_t ldvarg6 ; [L6202] struct usb_host_endpoint *ldvarg8 ; [L6203] void *tmp___2 ; [L6204] u16 ldvarg1 ; [L6205] u16 tmp___3 ; [L6206] char *ldvarg4 ; [L6207] void *tmp___4 ; [L6208] int ldvarg9 ; [L6209] int tmp___5 ; [L6210] u16 ldvarg2 ; [L6211] u16 tmp___6 ; [L6212] int tmp___7 ; [L6213] int tmp___8 ; [L6214] int tmp___9 ; [L6215] int tmp___10 ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6217] tmp = ldv_zalloc(1UL) [L6218] ldvarg7 = (char *)tmp [L6219] tmp___0 = __VERIFIER_nondet_u16() [L6220] ldvarg3 = tmp___0 [L6221] tmp___1 = __VERIFIER_nondet_u16() [L6222] ldvarg0 = tmp___1 [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6223] tmp___2 = ldv_zalloc(72UL) [L6224] ldvarg8 = (struct usb_host_endpoint *)tmp___2 [L6225] tmp___3 = __VERIFIER_nondet_u16() [L6226] ldvarg1 = tmp___3 [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6227] tmp___4 = ldv_zalloc(1UL) [L6228] ldvarg4 = (char *)tmp___4 [L6229] tmp___5 = __VERIFIER_nondet_int() [L6230] ldvarg9 = tmp___5 [L6231] tmp___6 = __VERIFIER_nondet_u16() [L6232] ldvarg2 = tmp___6 VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6234] ldvarg5 = (gfp_t)__VERIFIER_nondet_int() [L6235] ldvarg6 = (gfp_t)__VERIFIER_nondet_int() [L6236] ldv_state_variable_1 = 1 [L6237] ref_cnt = 0 [L6238] ldv_state_variable_0 = 1 [L6239] ldv_state_variable_3 = 0 [L6240] ldv_state_variable_2 = 0 VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6251] COND TRUE ldv_state_variable_0 != 0 [L6252] tmp___8 = __VERIFIER_nondet_int() [L6254] case 0: [L6262] case 1: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6263] COND TRUE ldv_state_variable_0 == 1 [L6032] int tmp ; [L6691] return __VERIFIER_nondet_int(); [L6034] tmp = spi_register_driver(& max3421_driver) [L6035] return (tmp); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6264] ldv_retval_0 = max3421_driver_init() [L6265] COND TRUE ldv_retval_0 == 0 [L6266] ldv_state_variable_0 = 3 [L6267] ldv_state_variable_2 = 1 [L6159] void *tmp ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6161] tmp = ldv_zalloc(1496UL) [L6162] max3421_driver_group0 = (struct spi_device *)tmp VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6269] ldv_state_variable_3 = 1 [L6122] void *tmp ; [L6123] void *tmp___0 ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6125] tmp = ldv_zalloc(192UL) [L6126] max3421_hcd_desc_group0 = (struct urb *)tmp [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6127] tmp___0 = ldv_zalloc(968UL) [L6128] max3421_hcd_desc_group1 = (struct usb_hcd *)tmp___0 VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6273] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: [L6288] case 2: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6289] COND TRUE ldv_state_variable_3 != 0 [L6290] tmp___9 = __VERIFIER_nondet_int() [L6292] case 0: [L6303] case 1: [L6315] case 2: [L6327] case 3: [L6339] case 4: [L6351] case 5: [L6363] case 6: [L6375] case 7: [L6387] case 8: [L6395] case 9: [L6407] case 10: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6408] COND TRUE ldv_state_variable_3 == 1 [L5535] struct spi_device *spi ; [L5536] struct spi_device *tmp ; [L5537] struct max3421_hcd *max3421_hcd ; [L5538] struct max3421_hcd *tmp___0 ; [L5539] struct max3421_ep *max3421_ep ; [L5540] unsigned long flags ; [L5541] int retval ; [L5542] void *tmp___1 ; [L5544] EXPR hcd->self.controller [L4062] struct device const *__mptr ; [L4063] struct spi_device *tmp ; VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L4065] COND FALSE !((unsigned long )dev != (unsigned long )((struct device *)0)) [L4069] tmp = (struct spi_device *)0 VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L4071] return (tmp); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L5544] tmp = to_spi_device(hcd->self.controller) [L5545] spi = tmp [L4223] return ((struct max3421_hcd *)(& hcd->hcd_priv)); VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L5546] tmp___0 = hcd_to_max3421(hcd) [L5547] max3421_hcd = tmp___0 [L5548] urb->pipe [L5549] case 1U: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L5550] case 0U: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L5557] default: VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L6582] ldv_spin = 1 VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L5562] EXPR urb->ep [L5562] EXPR (urb->ep)->hcpriv [L5562] max3421_ep = (struct max3421_ep *)(urb->ep)->hcpriv [L5563] COND TRUE (unsigned long )max3421_ep == (unsigned long )((struct max3421_ep *)0) [L6549] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] [L3987] reach_error() VAL [__this_module={163208757249:163208757250}, hrsl_to_error={122:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={142:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={96:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={134:0}, ref_cnt=0] - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 606 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4085 SDtfs, 2193 SDslu, 2501 SDs, 0 SdLazy, 119 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1322occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1198 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-06 14:51:17,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 92cb918a49bd861dcff82a05c4e06551bd9d0c0cbb9eb8fadf6410a0f7818165 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:51:19,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:51:19,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:51:19,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:51:19,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:51:19,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:51:19,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:51:19,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:51:19,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:51:19,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:51:19,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:51:19,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:51:19,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:51:19,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:51:19,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:51:19,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:51:19,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:51:19,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:51:19,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:51:19,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:51:19,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:51:19,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:51:19,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:51:19,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:51:19,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:51:19,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:51:19,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:51:19,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:51:19,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:51:19,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:51:19,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:51:19,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:51:19,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:51:19,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:51:19,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:51:19,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:51:19,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:51:19,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:51:19,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:51:19,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:51:19,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:51:19,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-06 14:51:19,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:51:19,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:51:19,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:51:19,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:51:19,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:51:19,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:51:19,496 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:51:19,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:51:19,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:51:19,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:51:19,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:51:19,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:51:19,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:51:19,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:51:19,499 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-06 14:51:19,500 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92cb918a49bd861dcff82a05c4e06551bd9d0c0cbb9eb8fadf6410a0f7818165 [2021-11-06 14:51:19,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:51:19,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:51:19,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:51:19,741 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:51:19,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:51:19,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:19,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2440d7416/138173a846d14c2c947e1af495612623/FLAGcf50d5208 [2021-11-06 14:51:20,298 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:51:20,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:20,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2440d7416/138173a846d14c2c947e1af495612623/FLAGcf50d5208 [2021-11-06 14:51:20,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2440d7416/138173a846d14c2c947e1af495612623 [2021-11-06 14:51:20,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:51:20,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:51:20,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:51:20,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:51:20,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:51:20,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:51:20" (1/1) ... [2021-11-06 14:51:20,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4300bdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:20, skipping insertion in model container [2021-11-06 14:51:20,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:51:20" (1/1) ... [2021-11-06 14:51:20,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:51:20,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:51:20,969 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2021-11-06 14:51:20,970 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2021-11-06 14:51:21,094 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i[111905,111918] [2021-11-06 14:51:21,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:51:21,559 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:51:21,620 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3714] [2021-11-06 14:51:21,621 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3715-3716] [2021-11-06 14:51:21,630 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i[111905,111918] [2021-11-06 14:51:21,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:51:21,802 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:51:21,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21 WrapperNode [2021-11-06 14:51:21,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:51:21,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:51:21,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:51:21,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:51:21,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:21,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:51:22,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:51:22,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:51:22,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:51:22,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:51:22,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:51:22,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:51:22,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:51:22,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (1/1) ... [2021-11-06 14:51:22,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:51:22,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:51:22,265 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) [2021-11-06 14:51:22,270 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 [2021-11-06 14:51:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-06 14:51:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-06 14:51:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-06 14:51:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-06 14:51:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-06 14:51:22,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:51:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-06 14:51:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-06 14:51:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-06 14:51:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:51:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:51:29,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:51:29,594 INFO L299 CfgBuilder]: Removed 589 assume(true) statements. [2021-11-06 14:51:29,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:29 BoogieIcfgContainer [2021-11-06 14:51:29,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:51:29,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:51:29,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:51:29,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:51:29,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:51:20" (1/3) ... [2021-11-06 14:51:29,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d759884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:51:29, skipping insertion in model container [2021-11-06 14:51:29,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:51:21" (2/3) ... [2021-11-06 14:51:29,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d759884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:51:29, skipping insertion in model container [2021-11-06 14:51:29,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:29" (3/3) ... [2021-11-06 14:51:29,604 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2021-11-06 14:51:29,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:51:29,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-06 14:51:29,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:51:29,666 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 [2021-11-06 14:51:29,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-06 14:51:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 601 states have (on average 1.4276206322795342) internal successors, (858), 605 states have internal predecessors, (858), 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) [2021-11-06 14:51:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 14:51:29,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:29,706 INFO L513 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] [2021-11-06 14:51:29,707 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:29,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash -345089639, now seen corresponding path program 1 times [2021-11-06 14:51:29,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:29,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911333265] [2021-11-06 14:51:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:29,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:29,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:29,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-06 14:51:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:30,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:51:30,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:51:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:30,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:51:30,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:30,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:51:30,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911333265] [2021-11-06 14:51:30,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911333265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:30,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:30,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:51:30,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095234119] [2021-11-06 14:51:30,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:30,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:51:30,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:30,643 INFO L87 Difference]: Start difference. First operand has 606 states, 601 states have (on average 1.4276206322795342) internal successors, (858), 605 states have internal predecessors, (858), 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) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 14:51:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:30,823 INFO L93 Difference]: Finished difference Result 1648 states and 2342 transitions. [2021-11-06 14:51:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-06 14:51:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:30,844 INFO L225 Difference]: With dead ends: 1648 [2021-11-06 14:51:30,844 INFO L226 Difference]: Without dead ends: 1018 [2021-11-06 14:51:30,849 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:30,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2021-11-06 14:51:30,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1014. [2021-11-06 14:51:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1010 states have (on average 1.4) internal successors, (1414), 1013 states have internal predecessors, (1414), 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) [2021-11-06 14:51:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1414 transitions. [2021-11-06 14:51:30,955 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1414 transitions. Word has length 30 [2021-11-06 14:51:30,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:30,955 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1414 transitions. [2021-11-06 14:51:30,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-06 14:51:30,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1414 transitions. [2021-11-06 14:51:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 14:51:30,958 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:30,958 INFO L513 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] [2021-11-06 14:51:30,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-06 14:51:31,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:51:31,172 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:31,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:31,172 INFO L85 PathProgramCache]: Analyzing trace with hash -501809799, now seen corresponding path program 1 times [2021-11-06 14:51:31,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:31,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939834906] [2021-11-06 14:51:31,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:31,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:31,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:31,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:31,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-06 14:51:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:31,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:51:31,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:51:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:31,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:51:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:51:31,915 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:51:31,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939834906] [2021-11-06 14:51:31,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939834906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:31,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:31,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:51:31,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424871751] [2021-11-06 14:51:31,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:31,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:51:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:31,918 INFO L87 Difference]: Start difference. First operand 1014 states and 1414 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 14:51:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:32,236 INFO L93 Difference]: Finished difference Result 2320 states and 3238 transitions. [2021-11-06 14:51:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:32,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-06 14:51:32,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:32,257 INFO L225 Difference]: With dead ends: 2320 [2021-11-06 14:51:32,257 INFO L226 Difference]: Without dead ends: 1336 [2021-11-06 14:51:32,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2021-11-06 14:51:32,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1322. [2021-11-06 14:51:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1318 states have (on average 1.3975720789074355) internal successors, (1842), 1321 states have internal predecessors, (1842), 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) [2021-11-06 14:51:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1842 transitions. [2021-11-06 14:51:32,293 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1842 transitions. Word has length 40 [2021-11-06 14:51:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:32,294 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 1842 transitions. [2021-11-06 14:51:32,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 14:51:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1842 transitions. [2021-11-06 14:51:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 14:51:32,297 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:32,297 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:32,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-06 14:51:32,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:51:32,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:32,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1114337862, now seen corresponding path program 1 times [2021-11-06 14:51:32,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:32,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233305898] [2021-11-06 14:51:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:32,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:32,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:32,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-06 14:51:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:33,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 14:51:33,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:51:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:33,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:51:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:33,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:51:33,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233305898] [2021-11-06 14:51:33,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233305898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:33,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:33,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-06 14:51:33,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402985852] [2021-11-06 14:51:33,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 14:51:33,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:51:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 14:51:33,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-06 14:51:33,492 INFO L87 Difference]: Start difference. First operand 1322 states and 1842 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-11-06 14:51:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:34,007 INFO L93 Difference]: Finished difference Result 9562 states and 13482 transitions. [2021-11-06 14:51:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 14:51:34,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 48 [2021-11-06 14:51:34,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:34,035 INFO L225 Difference]: With dead ends: 9562 [2021-11-06 14:51:34,035 INFO L226 Difference]: Without dead ends: 8270 [2021-11-06 14:51:34,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-06 14:51:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8270 states. [2021-11-06 14:51:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8270 to 1330. [2021-11-06 14:51:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1326 states have (on average 1.3951734539969833) internal successors, (1850), 1329 states have internal predecessors, (1850), 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) [2021-11-06 14:51:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1850 transitions. [2021-11-06 14:51:34,149 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1850 transitions. Word has length 48 [2021-11-06 14:51:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:34,149 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1850 transitions. [2021-11-06 14:51:34,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-11-06 14:51:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1850 transitions. [2021-11-06 14:51:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 14:51:34,151 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:34,151 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:34,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-06 14:51:34,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:51:34,368 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash -155622078, now seen corresponding path program 1 times [2021-11-06 14:51:34,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:34,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100359211] [2021-11-06 14:51:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:34,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:34,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:34,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-06 14:51:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:34,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:51:34,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:51:35,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:35,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:51:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:35,395 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:51:35,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100359211] [2021-11-06 14:51:35,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100359211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:35,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:35,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-06 14:51:35,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428897129] [2021-11-06 14:51:35,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:35,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:51:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:35,396 INFO L87 Difference]: Start difference. First operand 1330 states and 1850 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-06 14:51:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:35,478 INFO L93 Difference]: Finished difference Result 1330 states and 1850 transitions. [2021-11-06 14:51:35,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:35,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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 54 [2021-11-06 14:51:35,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:35,483 INFO L225 Difference]: With dead ends: 1330 [2021-11-06 14:51:35,483 INFO L226 Difference]: Without dead ends: 1326 [2021-11-06 14:51:35,484 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-11-06 14:51:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2021-11-06 14:51:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1324 states have (on average 1.392749244712991) internal successors, (1844), 1325 states have internal predecessors, (1844), 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) [2021-11-06 14:51:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1844 transitions. [2021-11-06 14:51:35,524 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1844 transitions. Word has length 54 [2021-11-06 14:51:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:35,525 INFO L470 AbstractCegarLoop]: Abstraction has 1326 states and 1844 transitions. [2021-11-06 14:51:35,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2021-11-06 14:51:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1844 transitions. [2021-11-06 14:51:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 14:51:35,527 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:35,527 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:35,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-06 14:51:35,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:51:35,747 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1653029978, now seen corresponding path program 1 times [2021-11-06 14:51:35,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:35,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053000308] [2021-11-06 14:51:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:35,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:35,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:35,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:35,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-06 14:51:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:51:36,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 14:51:36,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:51:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:36,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:51:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 14:51:36,622 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:51:36,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053000308] [2021-11-06 14:51:36,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053000308] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:51:36,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:51:36,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:51:36,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120356513] [2021-11-06 14:51:36,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:51:36,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:51:36,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:51:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:36,623 INFO L87 Difference]: Start difference. First operand 1326 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-06 14:51:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:51:36,729 INFO L93 Difference]: Finished difference Result 3814 states and 5332 transitions. [2021-11-06 14:51:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:51:36,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 58 [2021-11-06 14:51:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:51:36,736 INFO L225 Difference]: With dead ends: 3814 [2021-11-06 14:51:36,736 INFO L226 Difference]: Without dead ends: 2518 [2021-11-06 14:51:36,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:51:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2021-11-06 14:51:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1330. [2021-11-06 14:51:36,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1328 states have (on average 1.3885542168674698) internal successors, (1844), 1329 states have internal predecessors, (1844), 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) [2021-11-06 14:51:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1844 transitions. [2021-11-06 14:51:36,782 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1844 transitions. Word has length 58 [2021-11-06 14:51:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:51:36,783 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 1844 transitions. [2021-11-06 14:51:36,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-06 14:51:36,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1844 transitions. [2021-11-06 14:51:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 14:51:36,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:51:36,785 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:51:36,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-06 14:51:37,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:51:37,002 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-06 14:51:37,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:51:37,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1260002968, now seen corresponding path program 1 times [2021-11-06 14:51:37,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:51:37,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139507115] [2021-11-06 14:51:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:51:37,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:51:37,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:51:37,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:51:37,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-06 14:52:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 14:52:42,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 14:53:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 14:53:35,545 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-06 14:53:35,545 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 14:53:35,546 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:53:35,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:53:35,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:53:35,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 14:53:35,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-06 14:53:35,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:53:35,753 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-06 14:53:35,755 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 14:53:35,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 02:53:35 BoogieIcfgContainer [2021-11-06 14:53:35,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 14:53:35,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 14:53:35,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 14:53:35,970 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 14:53:35,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:51:29" (3/4) ... [2021-11-06 14:53:35,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 14:53:35,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 14:53:35,973 INFO L168 Benchmark]: Toolchain (without parser) took 135419.39 ms. Allocated memory was 67.1 MB in the beginning and 408.9 MB in the end (delta: 341.8 MB). Free memory was 39.1 MB in the beginning and 235.6 MB in the end (delta: -196.5 MB). Peak memory consumption was 146.4 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,974 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 14:53:35,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1249.46 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 38.9 MB in the beginning and 30.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.25 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 30.4 MB in the beginning and 58.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,975 INFO L168 Benchmark]: Boogie Preprocessor took 189.87 ms. Allocated memory is still 117.4 MB. Free memory was 58.7 MB in the beginning and 67.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,975 INFO L168 Benchmark]: RCFGBuilder took 7381.04 ms. Allocated memory was 117.4 MB in the beginning and 230.7 MB in the end (delta: 113.2 MB). Free memory was 67.0 MB in the beginning and 131.8 MB in the end (delta: -64.8 MB). Peak memory consumption was 136.1 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,975 INFO L168 Benchmark]: TraceAbstraction took 126368.20 ms. Allocated memory was 230.7 MB in the beginning and 408.9 MB in the end (delta: 178.3 MB). Free memory was 131.8 MB in the beginning and 236.6 MB in the end (delta: -104.8 MB). Peak memory consumption was 170.1 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,977 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 408.9 MB. Free memory was 236.6 MB in the beginning and 235.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-06 14:53:35,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 67.1 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1249.46 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 38.9 MB in the beginning and 30.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 221.25 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 30.4 MB in the beginning and 58.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 189.87 ms. Allocated memory is still 117.4 MB. Free memory was 58.7 MB in the beginning and 67.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7381.04 ms. Allocated memory was 117.4 MB in the beginning and 230.7 MB in the end (delta: 113.2 MB). Free memory was 67.0 MB in the beginning and 131.8 MB in the end (delta: -64.8 MB). Peak memory consumption was 136.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 126368.20 ms. Allocated memory was 230.7 MB in the beginning and 408.9 MB in the end (delta: 178.3 MB). Free memory was 131.8 MB in the beginning and 236.6 MB in the end (delta: -104.8 MB). Peak memory consumption was 170.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.95 ms. Allocated memory is still 408.9 MB. Free memory was 236.6 MB in the beginning and 235.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5883. Possible FailurePath: [L4010] int ldv_irq_1_2 = 0; [L4011] int LDV_IN_INTERRUPT = 1; [L4012] int ldv_irq_1_3 = 0; [L4013] void *ldv_irq_data_1_1 ; [L4014] int ldv_irq_1_1 = 0; [L4015] int ldv_irq_1_0 = 0; [L4016] struct urb *max3421_hcd_desc_group0 ; [L4017] int ldv_irq_line_1_3 ; [L4018] void *ldv_irq_data_1_0 ; [L4019] int ldv_state_variable_0 ; [L4020] struct usb_hcd *max3421_hcd_desc_group1 ; [L4021] int ldv_state_variable_3 ; [L4022] int ldv_irq_line_1_0 ; [L4023] int ldv_state_variable_2 ; [L4024] void *ldv_irq_data_1_3 ; [L4025] struct spi_device *max3421_driver_group0 ; [L4026] int ref_cnt ; [L4027] int ldv_irq_line_1_1 ; [L4028] void *ldv_irq_data_1_2 ; [L4029] int ldv_state_variable_1 ; [L4030] int ldv_irq_line_1_2 ; [L4208] static struct max3421_hcd *max3421_hcd_list ; [L4209-L4213] static int const hrsl_to_error[16U] = { 0, -22, -22, -22, -11, -32, -84, -71, -121, -71, -71, -84, -5, -5, -62, -75}; [L5882-L5888] static struct hc_driver max3421_hcd_desc = {"max3421", "MAX3421 USB Host-Controller Driver", 192UL, 0, 16, & max3421_reset, & max3421_start, 0, 0, & max3421_stop, 0, & max3421_get_frame_number, & max3421_urb_enqueue, & max3421_urb_dequeue, & max3421_map_urb_for_dma, & max3421_unmap_urb_for_dma, & max3421_endpoint_disable, 0, & max3421_hub_status_data, & max3421_hub_control, & max3421_bus_suspend, & max3421_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6027-L6029] static struct spi_driver max3421_driver = {0, & max3421_probe, & max3421_remove, 0, 0, 0, {"max3421-hcd", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L6045] int ldv_retval_0 ; [L6046] int ldv_retval_1 ; [L6049] int ldv_retval_2 ; [L6545] int ldv_spin = 0; VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6194] char *ldvarg7 ; [L6195] void *tmp ; [L6196] u16 ldvarg3 ; [L6197] u16 tmp___0 ; [L6198] u16 ldvarg0 ; [L6199] u16 tmp___1 ; [L6200] gfp_t ldvarg5 ; [L6201] gfp_t ldvarg6 ; [L6202] struct usb_host_endpoint *ldvarg8 ; [L6203] void *tmp___2 ; [L6204] u16 ldvarg1 ; [L6205] u16 tmp___3 ; [L6206] char *ldvarg4 ; [L6207] void *tmp___4 ; [L6208] int ldvarg9 ; [L6209] int tmp___5 ; [L6210] u16 ldvarg2 ; [L6211] u16 tmp___6 ; [L6212] int tmp___7 ; [L6213] int tmp___8 ; [L6214] int tmp___9 ; [L6215] int tmp___10 ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6217] tmp = ldv_zalloc(1UL) [L6218] ldvarg7 = (char *)tmp [L6219] tmp___0 = __VERIFIER_nondet_u16() [L6220] ldvarg3 = tmp___0 [L6221] tmp___1 = __VERIFIER_nondet_u16() [L6222] ldvarg0 = tmp___1 [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6223] tmp___2 = ldv_zalloc(72UL) [L6224] ldvarg8 = (struct usb_host_endpoint *)tmp___2 [L6225] tmp___3 = __VERIFIER_nondet_u16() [L6226] ldvarg1 = tmp___3 [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6227] tmp___4 = ldv_zalloc(1UL) [L6228] ldvarg4 = (char *)tmp___4 [L6229] tmp___5 = __VERIFIER_nondet_int() [L6230] ldvarg9 = tmp___5 [L6231] tmp___6 = __VERIFIER_nondet_u16() [L6232] ldvarg2 = tmp___6 VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6234] ldvarg5 = (gfp_t)__VERIFIER_nondet_int() [L6235] ldvarg6 = (gfp_t)__VERIFIER_nondet_int() [L6236] ldv_state_variable_1 = 1 [L6237] ref_cnt = 0 [L6238] ldv_state_variable_0 = 1 [L6239] ldv_state_variable_3 = 0 [L6240] ldv_state_variable_2 = 0 VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6251] COND TRUE ldv_state_variable_0 != 0 [L6252] tmp___8 = __VERIFIER_nondet_int() [L6254] case 0: [L6262] case 1: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6263] COND TRUE ldv_state_variable_0 == 1 [L6032] int tmp ; [L6691] return __VERIFIER_nondet_int(); [L6034] tmp = spi_register_driver(& max3421_driver) [L6035] return (tmp); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6264] ldv_retval_0 = max3421_driver_init() [L6265] COND TRUE ldv_retval_0 == 0 [L6266] ldv_state_variable_0 = 3 [L6267] ldv_state_variable_2 = 1 [L6159] void *tmp ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6161] tmp = ldv_zalloc(1496UL) [L6162] max3421_driver_group0 = (struct spi_device *)tmp VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6269] ldv_state_variable_3 = 1 [L6122] void *tmp ; [L6123] void *tmp___0 ; [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6125] tmp = ldv_zalloc(192UL) [L6126] max3421_hcd_desc_group0 = (struct urb *)tmp [L3951] void *p ; [L3952] void *tmp ; [L3953] int tmp___0 ; [L3955] tmp___0 = __VERIFIER_nondet_int() [L3956] COND TRUE tmp___0 != 0 [L3957] return ((void *)0); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6127] tmp___0 = ldv_zalloc(968UL) [L6128] max3421_hcd_desc_group1 = (struct usb_hcd *)tmp___0 VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6273] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6242] tmp___7 = __VERIFIER_nondet_int() [L6244] case 0: [L6250] case 1: [L6288] case 2: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6289] COND TRUE ldv_state_variable_3 != 0 [L6290] tmp___9 = __VERIFIER_nondet_int() [L6292] case 0: [L6303] case 1: [L6315] case 2: [L6327] case 3: [L6339] case 4: [L6351] case 5: [L6363] case 6: [L6375] case 7: [L6387] case 8: [L6395] case 9: [L6407] case 10: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6408] COND TRUE ldv_state_variable_3 == 1 [L5535] struct spi_device *spi ; [L5536] struct spi_device *tmp ; [L5537] struct max3421_hcd *max3421_hcd ; [L5538] struct max3421_hcd *tmp___0 ; [L5539] struct max3421_ep *max3421_ep ; [L5540] unsigned long flags ; [L5541] int retval ; [L5542] void *tmp___1 ; [L5544] EXPR hcd->self.controller [L4062] struct device const *__mptr ; [L4063] struct spi_device *tmp ; VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L4065] COND FALSE !((unsigned long )dev != (unsigned long )((struct device *)0)) [L4069] tmp = (struct spi_device *)0 VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L4071] return (tmp); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L5544] tmp = to_spi_device(hcd->self.controller) [L5545] spi = tmp [L4223] return ((struct max3421_hcd *)(& hcd->hcd_priv)); VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L5546] tmp___0 = hcd_to_max3421(hcd) [L5547] max3421_hcd = tmp___0 [L5548] urb->pipe [L5549] case 1U: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L5550] case 0U: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L5557] default: VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L6582] ldv_spin = 1 VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L5562] EXPR urb->ep [L5562] EXPR (urb->ep)->hcpriv [L5562] max3421_ep = (struct max3421_ep *)(urb->ep)->hcpriv [L5563] COND TRUE (unsigned long )max3421_ep == (unsigned long )((struct max3421_ep *)0) [L6549] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] [L3987] reach_error() VAL [__this_module={0:0}, hrsl_to_error={8393584089047246946:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_spin=1, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, max3421_driver={-1982709727359924114:0}, max3421_driver_group0={0:0}, max3421_hcd_desc={3781897795674310754:0}, max3421_hcd_desc_group0={0:0}, max3421_hcd_desc_group1={0:0}, max3421_hcd_list={8384585686959269997:0}, ref_cnt=0] - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 606 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 126.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6247 SDtfs, 7734 SDslu, 11092 SDs, 0 SdLazy, 166 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 456 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1330occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 8146 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 67.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 732 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3537 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 18/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-06 14:53:36,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample