./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-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 bbef461d577533a33a47975bed502a034d4de7bb4c9545318a29cb7eaac175ad --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:06:59,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:06:59,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:06:59,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:06:59,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:06:59,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:06:59,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:06:59,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:06:59,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:06:59,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:06:59,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:06:59,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:06:59,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:06:59,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:06:59,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:06:59,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:06:59,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:06:59,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:06:59,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:06:59,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:06:59,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:06:59,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:06:59,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:06:59,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:06:59,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:06:59,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:06:59,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:06:59,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:06:59,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:06:59,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:06:59,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:06:59,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:06:59,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:06:59,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:06:59,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:06:59,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:06:59,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:06:59,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:06:59,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:06:59,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:06:59,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:06:59,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:06:59,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:06:59,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:06:59,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:06:59,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:06:59,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:06:59,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:06:59,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:06:59,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:06:59,508 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:06:59,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:06:59,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:06:59,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:06:59,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:06:59,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:06:59,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:06:59,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:06:59,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:06:59,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:06:59,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:06:59,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:06:59,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:06:59,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:06:59,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:06:59,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:06:59,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:06:59,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:06:59,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbef461d577533a33a47975bed502a034d4de7bb4c9545318a29cb7eaac175ad [2021-12-22 15:06:59,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:06:59,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:06:59,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:06:59,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:06:59,738 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:06:59,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-22 15:06:59,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cdbfc2e/5cadcb2022394ecd96829a421f668545/FLAGed8ef0504 [2021-12-22 15:07:00,436 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:07:00,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-22 15:07:00,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cdbfc2e/5cadcb2022394ecd96829a421f668545/FLAGed8ef0504 [2021-12-22 15:07:00,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94cdbfc2e/5cadcb2022394ecd96829a421f668545 [2021-12-22 15:07:00,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:07:00,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:07:00,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:00,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:07:00,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:07:00,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:00" (1/1) ... [2021-12-22 15:07:00,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a190ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:00, skipping insertion in model container [2021-12-22 15:07:00,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:00" (1/1) ... [2021-12-22 15:07:00,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:07:00,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:07:02,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[283009,283022] [2021-12-22 15:07:02,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:02,535 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:07:02,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[283009,283022] [2021-12-22 15:07:02,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:07:02,914 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:07:02,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02 WrapperNode [2021-12-22 15:07:02,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:07:02,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:02,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:07:02,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:07:02,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:02,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,162 INFO L137 Inliner]: procedures = 307, calls = 3021, calls flagged for inlining = 108, calls inlined = 104, statements flattened = 6883 [2021-12-22 15:07:03,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:07:03,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:07:03,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:07:03,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:07:03,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:07:03,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:07:03,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:07:03,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:07:03,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (1/1) ... [2021-12-22 15:07:03,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:07:03,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:07:03,428 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) [2021-12-22 15:07:03,447 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 [2021-12-22 15:07:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2021-12-22 15:07:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2021-12-22 15:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2021-12-22 15:07:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2021-12-22 15:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2021-12-22 15:07:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2021-12-22 15:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:07:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:07:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 15:07:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 15:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:07:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2021-12-22 15:07:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2021-12-22 15:07:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:07:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-22 15:07:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-22 15:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:07:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_create [2021-12-22 15:07:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_create [2021-12-22 15:07:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_readl [2021-12-22 15:07:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_readl [2021-12-22 15:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_run [2021-12-22 15:07:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_run [2021-12-22 15:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:07:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2021-12-22 15:07:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2021-12-22 15:07:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2021-12-22 15:07:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2021-12-22 15:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_irq [2021-12-22 15:07:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_irq [2021-12-22 15:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:07:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2021-12-22 15:07:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2021-12-22 15:07:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-22 15:07:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-22 15:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:07:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:07:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2021-12-22 15:07:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2021-12-22 15:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_endpoint_disable [2021-12-22 15:07:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_endpoint_disable [2021-12-22 15:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2021-12-22 15:07:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2021-12-22 15:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:07:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:07:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 15:07:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 15:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-22 15:07:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-22 15:07:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qtd_free [2021-12-22 15:07:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qtd_free [2021-12-22 15:07:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:07:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:07:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:07:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2021-12-22 15:07:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2021-12-22 15:07:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:07:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2021-12-22 15:07:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2021-12-22 15:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 15:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:07:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:07:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_writel [2021-12-22 15:07:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_writel [2021-12-22 15:07:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:07:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:07:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_shutdown [2021-12-22 15:07:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_shutdown [2021-12-22 15:07:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-12-22 15:07:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-12-22 15:07:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_alloc [2021-12-22 15:07:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_alloc [2021-12-22 15:07:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:07:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:07:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2021-12-22 15:07:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2021-12-22 15:07:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_enqueue [2021-12-22 15:07:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_enqueue [2021-12-22 15:07:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-22 15:07:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-22 15:07:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2021-12-22 15:07:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2021-12-22 15:07:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2021-12-22 15:07:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2021-12-22 15:07:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_buf_alloc [2021-12-22 15:07:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_buf_alloc [2021-12-22 15:07:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 15:07:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 15:07:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:07:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:07:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_control [2021-12-22 15:07:03,483 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_control [2021-12-22 15:07:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-22 15:07:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2021-12-22 15:07:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:07:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-22 15:07:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 15:07:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_probe [2021-12-22 15:07:03,484 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_probe [2021-12-22 15:07:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:07:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:07:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action [2021-12-22 15:07:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action [2021-12-22 15:07:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 15:07:03,485 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 15:07:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:07:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_get_frame [2021-12-22 15:07:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_get_frame [2021-12-22 15:07:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2021-12-22 15:07:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2021-12-22 15:07:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-22 15:07:03,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-22 15:07:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:07:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 15:07:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 15:07:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:07:03,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:07:03,494 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2021-12-22 15:07:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2021-12-22 15:07:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2021-12-22 15:07:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2021-12-22 15:07:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure __oxu_urb_enqueue [2021-12-22 15:07:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __oxu_urb_enqueue [2021-12-22 15:07:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_remove [2021-12-22 15:07:03,495 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_remove [2021-12-22 15:07:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-22 15:07:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-22 15:07:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:07:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:07:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 15:07:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 15:07:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:07:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 15:07:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 15:07:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 15:07:03,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 15:07:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:07:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:07:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2021-12-22 15:07:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2021-12-22 15:07:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2021-12-22 15:07:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2021-12-22 15:07:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:07:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:07:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-22 15:07:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-22 15:07:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:07:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-22 15:07:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-22 15:07:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2021-12-22 15:07:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2021-12-22 15:07:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2021-12-22 15:07:03,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2021-12-22 15:07:03,498 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_to_hcd [2021-12-22 15:07:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_to_hcd [2021-12-22 15:07:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:07:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:07:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 15:07:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 15:07:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:07:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qh_alloc [2021-12-22 15:07:03,499 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qh_alloc [2021-12-22 15:07:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_suspend [2021-12-22 15:07:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_suspend [2021-12-22 15:07:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2021-12-22 15:07:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2021-12-22 15:07:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-22 15:07:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-22 15:07:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:07:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:07:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2021-12-22 15:07:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2021-12-22 15:07:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:07:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_status_data [2021-12-22 15:07:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_status_data [2021-12-22 15:07:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_shutdown [2021-12-22 15:07:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_shutdown [2021-12-22 15:07:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2021-12-22 15:07:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2021-12-22 15:07:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:07:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:07:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure qh_get [2021-12-22 15:07:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_get [2021-12-22 15:07:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 15:07:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 15:07:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2021-12-22 15:07:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2021-12-22 15:07:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action_done [2021-12-22 15:07:03,502 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action_done [2021-12-22 15:07:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:07:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:07:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 15:07:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 15:07:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-12-22 15:07:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-12-22 15:07:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2021-12-22 15:07:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2021-12-22 15:07:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_free [2021-12-22 15:07:03,503 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_free [2021-12-22 15:07:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2021-12-22 15:07:03,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-22 15:07:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2021-12-22 15:07:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-12-22 15:07:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2021-12-22 15:07:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:07:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:07:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_resume [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_resume [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_dequeue [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_dequeue [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_remove [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_remove [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:07:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2021-12-22 15:07:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2021-12-22 15:07:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_oxu [2021-12-22 15:07:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_oxu [2021-12-22 15:07:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_reset [2021-12-22 15:07:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_reset [2021-12-22 15:07:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:07:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:07:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 15:07:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 15:07:04,300 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:07:04,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:07:04,688 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:07:12,200 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:07:12,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:07:12,224 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:07:12,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:12 BoogieIcfgContainer [2021-12-22 15:07:12,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:07:12,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:07:12,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:07:12,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:07:12,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:07:00" (1/3) ... [2021-12-22 15:07:12,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f1196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:12, skipping insertion in model container [2021-12-22 15:07:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:02" (2/3) ... [2021-12-22 15:07:12,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f1196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:07:12, skipping insertion in model container [2021-12-22 15:07:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:07:12" (3/3) ... [2021-12-22 15:07:12,235 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-22 15:07:12,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:07:12,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:07:12,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:07:12,296 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 [2021-12-22 15:07:12,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:07:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 2728 states, 1892 states have (on average 1.3810782241014798) internal successors, (2613), 1965 states have internal predecessors, (2613), 717 states have call successors, (717), 118 states have call predecessors, (717), 117 states have return successors, (711), 695 states have call predecessors, (711), 711 states have call successors, (711) [2021-12-22 15:07:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-22 15:07:12,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:12,377 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:12,377 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:12,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1950117713, now seen corresponding path program 1 times [2021-12-22 15:07:12,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:12,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070015269] [2021-12-22 15:07:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:12,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:13,320 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-12-22 15:07:13,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:13,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070015269] [2021-12-22 15:07:13,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070015269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:13,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:13,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:07:13,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445609570] [2021-12-22 15:07:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:13,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:07:13,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:13,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:07:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:07:13,354 INFO L87 Difference]: Start difference. First operand has 2728 states, 1892 states have (on average 1.3810782241014798) internal successors, (2613), 1965 states have internal predecessors, (2613), 717 states have call successors, (717), 118 states have call predecessors, (717), 117 states have return successors, (711), 695 states have call predecessors, (711), 711 states have call successors, (711) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:07:16,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:24,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:26,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:28,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:29,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:29,127 INFO L93 Difference]: Finished difference Result 5781 states and 8698 transitions. [2021-12-22 15:07:29,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:07:29,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 246 [2021-12-22 15:07:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:29,170 INFO L225 Difference]: With dead ends: 5781 [2021-12-22 15:07:29,171 INFO L226 Difference]: Without dead ends: 3034 [2021-12-22 15:07:29,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:29,194 INFO L933 BasicCegarLoop]: 3737 mSDtfsCounter, 1680 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 1820 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 4242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1820 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:29,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1760 Valid, 7157 Invalid, 4242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1820 Valid, 2418 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2021-12-22 15:07:29,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2021-12-22 15:07:29,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 2704. [2021-12-22 15:07:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2704 states, 1878 states have (on average 1.3753993610223643) internal successors, (2583), 1943 states have internal predecessors, (2583), 709 states have call successors, (709), 117 states have call predecessors, (709), 116 states have return successors, (706), 690 states have call predecessors, (706), 706 states have call successors, (706) [2021-12-22 15:07:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2704 states to 2704 states and 3998 transitions. [2021-12-22 15:07:29,391 INFO L78 Accepts]: Start accepts. Automaton has 2704 states and 3998 transitions. Word has length 246 [2021-12-22 15:07:29,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:29,393 INFO L470 AbstractCegarLoop]: Abstraction has 2704 states and 3998 transitions. [2021-12-22 15:07:29,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 15:07:29,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2704 states and 3998 transitions. [2021-12-22 15:07:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-22 15:07:29,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:29,401 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:29,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:07:29,402 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:29,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:29,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2122408517, now seen corresponding path program 1 times [2021-12-22 15:07:29,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:29,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71545965] [2021-12-22 15:07:29,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:29,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-12-22 15:07:29,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:29,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71545965] [2021-12-22 15:07:29,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71545965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:29,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:29,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:29,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740598848] [2021-12-22 15:07:29,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:29,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:29,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:29,956 INFO L87 Difference]: Start difference. First operand 2704 states and 3998 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2021-12-22 15:07:37,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:40,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:44,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:07:47,015 INFO L93 Difference]: Finished difference Result 8668 states and 13040 transitions. [2021-12-22 15:07:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:07:47,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 246 [2021-12-22 15:07:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:07:47,051 INFO L225 Difference]: With dead ends: 8668 [2021-12-22 15:07:47,051 INFO L226 Difference]: Without dead ends: 6009 [2021-12-22 15:07:47,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:07:47,066 INFO L933 BasicCegarLoop]: 4176 mSDtfsCounter, 6802 mSDsluCounter, 6760 mSDsCounter, 0 mSdLazyCounter, 4639 mSolverCounterSat, 4226 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7322 SdHoareTripleChecker+Valid, 10936 SdHoareTripleChecker+Invalid, 8867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4226 IncrementalHoareTripleChecker+Valid, 4639 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:07:47,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7322 Valid, 10936 Invalid, 8867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4226 Valid, 4639 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2021-12-22 15:07:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2021-12-22 15:07:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5336. [2021-12-22 15:07:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5336 states, 3713 states have (on average 1.3792081874495017) internal successors, (5121), 3842 states have internal predecessors, (5121), 1390 states have call successors, (1390), 232 states have call predecessors, (1390), 232 states have return successors, (1393), 1355 states have call predecessors, (1393), 1387 states have call successors, (1393) [2021-12-22 15:07:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5336 states to 5336 states and 7904 transitions. [2021-12-22 15:07:47,262 INFO L78 Accepts]: Start accepts. Automaton has 5336 states and 7904 transitions. Word has length 246 [2021-12-22 15:07:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:07:47,263 INFO L470 AbstractCegarLoop]: Abstraction has 5336 states and 7904 transitions. [2021-12-22 15:07:47,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2021-12-22 15:07:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5336 states and 7904 transitions. [2021-12-22 15:07:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-12-22 15:07:47,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:07:47,268 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:07:47,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:07:47,269 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:07:47,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:07:47,269 INFO L85 PathProgramCache]: Analyzing trace with hash -653982765, now seen corresponding path program 1 times [2021-12-22 15:07:47,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:07:47,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333583204] [2021-12-22 15:07:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:07:47,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:07:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:07:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:07:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:07:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:07:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:07:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:07:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:07:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:07:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:07:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:07:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:07:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:07:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:07:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:07:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:07:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:07:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:07:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:07:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-22 15:07:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:07:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:07:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:07:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked. [2021-12-22 15:07:47,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:07:47,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333583204] [2021-12-22 15:07:47,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333583204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:07:47,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:07:47,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:07:47,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919658481] [2021-12-22 15:07:47,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:07:47,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:07:47,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:07:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:07:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:07:47,709 INFO L87 Difference]: Start difference. First operand 5336 states and 7904 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 15:07:54,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:57,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:07:59,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:08:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:08:00,666 INFO L93 Difference]: Finished difference Result 6011 states and 9103 transitions. [2021-12-22 15:08:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:08:00,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 266 [2021-12-22 15:08:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:08:00,704 INFO L225 Difference]: With dead ends: 6011 [2021-12-22 15:08:00,704 INFO L226 Difference]: Without dead ends: 6008 [2021-12-22 15:08:00,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:08:00,711 INFO L933 BasicCegarLoop]: 3689 mSDtfsCounter, 5503 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 2543 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 6861 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2543 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-12-22 15:08:00,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5936 Valid, 6861 Invalid, 5067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2543 Valid, 2521 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2021-12-22 15:08:00,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-12-22 15:08:00,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5335. [2021-12-22 15:08:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3713 states have (on average 1.3789388634527335) internal successors, (5120), 3841 states have internal predecessors, (5120), 1389 states have call successors, (1389), 232 states have call predecessors, (1389), 232 states have return successors, (1393), 1355 states have call predecessors, (1393), 1387 states have call successors, (1393) [2021-12-22 15:08:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7902 transitions. [2021-12-22 15:08:00,911 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7902 transitions. Word has length 266 [2021-12-22 15:08:00,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:08:00,913 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 7902 transitions. [2021-12-22 15:08:00,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-22 15:08:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7902 transitions. [2021-12-22 15:08:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-22 15:08:00,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:08:00,953 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:08:00,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:08:00,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:08:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:08:00,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1200196019, now seen corresponding path program 1 times [2021-12-22 15:08:00,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:08:00,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241719561] [2021-12-22 15:08:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:08:00,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:08:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:08:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:08:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:08:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:08:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:08:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:08:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:08:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 15:08:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:08:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 15:08:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 15:08:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 15:08:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 15:08:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:08:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:08:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-22 15:08:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 15:08:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-22 15:08:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-22 15:08:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:08:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:08:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:08:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 888 trivial. 0 not checked. [2021-12-22 15:08:01,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:08:01,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241719561] [2021-12-22 15:08:01,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241719561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:08:01,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:08:01,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:08:01,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173833980] [2021-12-22 15:08:01,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:08:01,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:08:01,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:08:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:08:01,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:08:01,366 INFO L87 Difference]: Start difference. First operand 5335 states and 7902 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)