./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.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 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:55:23,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:55:23,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:55:23,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:55:23,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:55:23,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:55:23,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:55:23,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:55:23,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:55:23,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:55:23,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:55:23,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:55:23,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:55:23,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:55:23,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:55:23,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:55:23,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:55:23,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:55:23,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:55:23,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:55:23,537 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:55:23,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:55:23,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:55:23,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:55:23,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:55:23,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:55:23,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:55:23,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:55:23,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:55:23,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:55:23,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:55:23,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:55:23,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:55:23,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:55:23,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:55:23,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:55:23,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:55:23,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:55:23,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:55:23,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:55:23,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:55:23,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:55:23,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:55:23,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:55:23,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:55:23,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:55:23,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:55:23,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:55:23,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:55:23,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:55:23,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:55:23,591 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:55:23,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:55:23,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:55:23,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:55:23,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:55:23,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:55:23,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:55:23,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:55:23,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:55:23,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:55:23,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:55:23,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:55:23,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:55:23,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:23,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:55:23,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:55:23,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:55:23,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:55:23,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:55:23,596 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:55:23,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:55:23,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:55:23,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd [2022-07-21 10:55:23,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:55:23,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:55:23,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:55:23,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:55:23,986 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:55:23,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-21 10:55:24,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/225940e8f/dcf38565e21f41ffb8606436efc6b00d/FLAGe72be6b9e [2022-07-21 10:55:24,787 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:55:24,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-21 10:55:24,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/225940e8f/dcf38565e21f41ffb8606436efc6b00d/FLAGe72be6b9e [2022-07-21 10:55:24,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/225940e8f/dcf38565e21f41ffb8606436efc6b00d [2022-07-21 10:55:24,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:55:24,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:55:24,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:24,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:55:24,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:55:24,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:24" (1/1) ... [2022-07-21 10:55:24,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d56fd08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:24, skipping insertion in model container [2022-07-21 10:55:24,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:24" (1/1) ... [2022-07-21 10:55:24,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:55:25,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:55:25,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i[156940,156953] [2022-07-21 10:55:26,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:26,794 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:55:26,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i[156940,156953] [2022-07-21 10:55:27,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:27,288 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:55:27,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27 WrapperNode [2022-07-21 10:55:27,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:27,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:27,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:55:27,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:55:27,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,523 INFO L137 Inliner]: procedures = 220, calls = 1909, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3530 [2022-07-21 10:55:27,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:27,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:55:27,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:55:27,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:55:27,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:55:27,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:55:27,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:55:27,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:55:27,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (1/1) ... [2022-07-21 10:55:27,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:27,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:55:27,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:55:27,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:55:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_complete [2022-07-21 10:55:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_complete [2022-07-21 10:55:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dout_reset [2022-07-21 10:55:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_reset [2022-07-21 10:55:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_isocpipes [2022-07-21 10:55:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_isocpipes [2022-07-21 10:55:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:55:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:55:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_le16p [2022-07-21 10:55:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_le16p [2022-07-21 10:55:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 10:55:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 10:55:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 10:55:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 10:55:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2022-07-21 10:55:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2022-07-21 10:55:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:55:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:55:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_st5481 [2022-07-21 10:55:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_st5481 [2022-07-21 10:55:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 10:55:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 10:55:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure usb_next_ctrl_msg [2022-07-21 10:55:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_next_ctrl_msg [2022-07-21 10:55:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_usb [2022-07-21 10:55:27,857 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_usb [2022-07-21 10:55:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out [2022-07-21 10:55:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out [2022-07-21 10:55:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_device_ctrl_msg [2022-07-21 10:55:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_device_ctrl_msg [2022-07-21 10:55:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:55:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:55:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure FsmEvent [2022-07-21 10:55:27,858 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmEvent [2022-07-21 10:55:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 10:55:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 10:55:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure led_blink [2022-07-21 10:55:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure led_blink [2022-07-21 10:55:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_in_mode [2022-07-21 10:55:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_in_mode [2022-07-21 10:55:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-21 10:55:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-21 10:55:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_start_rcv [2022-07-21 10:55:27,860 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_start_rcv [2022-07-21 10:55:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:55:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:55:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-21 10:55:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-21 10:55:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2022-07-21 10:55:27,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2022-07-21 10:55:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_2 [2022-07-21 10:55:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_2 [2022-07-21 10:55:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2022-07-21 10:55:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2022-07-21 10:55:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25 [2022-07-21 10:55:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25 [2022-07-21 10:55:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:55:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2022-07-21 10:55:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2022-07-21 10:55:27,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-21 10:55:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-21 10:55:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-21 10:55:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-21 10:55:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure ph_connect [2022-07-21 10:55:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_connect [2022-07-21 10:55:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_mode [2022-07-21 10:55:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_mode [2022-07-21 10:55:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure B_L1L2 [2022-07-21 10:55:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure B_L1L2 [2022-07-21 10:55:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-21 10:55:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-21 10:55:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-07-21 10:55:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-07-21 10:55:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:55:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-21 10:55:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-21 10:55:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-21 10:55:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-21 10:55:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_isocpipes [2022-07-21 10:55:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_isocpipes [2022-07-21 10:55:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_out_init [2022-07-21 10:55:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_out_init [2022-07-21 10:55:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 10:55:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 10:55:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure ph_disconnect [2022-07-21 10:55:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_disconnect [2022-07-21 10:55:27,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:55:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f6 [2022-07-21 10:55:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f6 [2022-07-21 10:55:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:55:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f7 [2022-07-21 10:55:27,869 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f7 [2022-07-21 10:55:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f8 [2022-07-21 10:55:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f8 [2022-07-21 10:55:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_b_l2l1 [2022-07-21 10:55:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_b_l2l1 [2022-07-21 10:55:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f3 [2022-07-21 10:55:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f3 [2022-07-21 10:55:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure dout_short_fifo [2022-07-21 10:55:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_short_fifo [2022-07-21 10:55:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_b [2022-07-21 10:55:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_b [2022-07-21 10:55:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 10:55:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 10:55:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 10:55:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 10:55:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_in_complete [2022-07-21 10:55:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_in_complete [2022-07-21 10:55:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out_complete [2022-07-21 10:55:27,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out_complete [2022-07-21 10:55:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_start_xfer [2022-07-21 10:55:27,873 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_start_xfer [2022-07-21 10:55:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_pipe_reset [2022-07-21 10:55:27,874 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_pipe_reset [2022-07-21 10:55:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:55:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 10:55:27,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 10:55:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure dout_check_busy [2022-07-21 10:55:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_check_busy [2022-07-21 10:55:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b_out [2022-07-21 10:55:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b_out [2022-07-21 10:55:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure FsmFree [2022-07-21 10:55:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmFree [2022-07-21 10:55:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:55:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:55:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_encode [2022-07-21 10:55:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_encode [2022-07-21 10:55:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out [2022-07-21 10:55:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out [2022-07-21 10:55:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:55:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 10:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 10:55:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 10:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 10:55:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_den [2022-07-21 10:55:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_den [2022-07-21 10:55:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 10:55:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 10:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:55:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure dout_stop [2022-07-21 10:55:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_stop [2022-07-21 10:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure dout_underrun [2022-07-21 10:55:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_underrun [2022-07-21 10:55:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 10:55:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 10:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_in [2022-07-21 10:55:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_in [2022-07-21 10:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:55:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-21 10:55:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-21 10:55:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_d_exit [2022-07-21 10:55:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_d_exit [2022-07-21 10:55:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:55:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure dump_iso_packet___0 [2022-07-21 10:55:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_iso_packet___0 [2022-07-21 10:55:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_msg [2022-07-21 10:55:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_msg [2022-07-21 10:55:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 10:55:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 10:55:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 10:55:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 10:55:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:55:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 10:55:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 10:55:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 10:55:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 10:55:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:55:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b [2022-07-21 10:55:27,910 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b [2022-07-21 10:55:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure dump_packet [2022-07-21 10:55:27,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_packet [2022-07-21 10:55:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d [2022-07-21 10:55:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d [2022-07-21 10:55:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure l1_activate [2022-07-21 10:55:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_activate [2022-07-21 10:55:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure FsmNew [2022-07-21 10:55:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmNew [2022-07-21 10:55:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure l1_timer3 [2022-07-21 10:55:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_timer3 [2022-07-21 10:55:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_stop [2022-07-21 10:55:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_stop [2022-07-21 10:55:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_enable_fifo [2022-07-21 10:55:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_enable_fifo [2022-07-21 10:55:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out_complete [2022-07-21 10:55:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out_complete [2022-07-21 10:55:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_complete [2022-07-21 10:55:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_complete [2022-07-21 10:55:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_in [2022-07-21 10:55:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_in [2022-07-21 10:55:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure D_L1L2 [2022-07-21 10:55:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure D_L1L2 [2022-07-21 10:55:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure dout_complete [2022-07-21 10:55:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_complete [2022-07-21 10:55:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure FsmChangeState [2022-07-21 10:55:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmChangeState [2022-07-21 10:55:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_ph_command [2022-07-21 10:55:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_ph_command [2022-07-21 10:55:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure dout_start_xmit [2022-07-21 10:55:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_start_xmit [2022-07-21 10:55:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d_out [2022-07-21 10:55:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d_out [2022-07-21 10:55:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 10:55:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 10:55:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:55:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-21 10:55:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-21 10:55:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_nr [2022-07-21 10:55:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_nr [2022-07-21 10:55:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:55:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:55:28,592 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:55:28,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:55:28,767 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 10:55:33,737 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-21 10:55:38,840 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:55:38,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:55:38,860 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 10:55:38,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:38 BoogieIcfgContainer [2022-07-21 10:55:38,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:55:38,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:55:38,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:55:38,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:55:38,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:24" (1/3) ... [2022-07-21 10:55:38,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692dff1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:38, skipping insertion in model container [2022-07-21 10:55:38,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:27" (2/3) ... [2022-07-21 10:55:38,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692dff1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:38, skipping insertion in model container [2022-07-21 10:55:38,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:38" (3/3) ... [2022-07-21 10:55:38,872 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-21 10:55:38,885 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:55:38,885 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:55:38,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:55:38,960 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e8d1aa3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64bc9242 [2022-07-21 10:55:38,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:55:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 906 states have (on average 1.3741721854304636) internal successors, (1245), 972 states have internal predecessors, (1245), 283 states have call successors, (283), 100 states have call predecessors, (283), 98 states have return successors, (278), 254 states have call predecessors, (278), 278 states have call successors, (278) [2022-07-21 10:55:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 10:55:38,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:38,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:55:38,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2055883923, now seen corresponding path program 1 times [2022-07-21 10:55:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:38,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366697473] [2022-07-21 10:55:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:38,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:39,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 10:55:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:55:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:55:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 10:55:39,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366697473] [2022-07-21 10:55:39,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366697473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:55:39,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:55:39,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:55:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693563815] [2022-07-21 10:55:39,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:55:39,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:55:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:55:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:55:39,732 INFO L87 Difference]: Start difference. First operand has 1288 states, 906 states have (on average 1.3741721854304636) internal successors, (1245), 972 states have internal predecessors, (1245), 283 states have call successors, (283), 100 states have call predecessors, (283), 98 states have return successors, (278), 254 states have call predecessors, (278), 278 states have call successors, (278) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:55:46,823 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 [] [2022-07-21 10:55:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:55:47,571 INFO L93 Difference]: Finished difference Result 4140 states and 6181 transitions. [2022-07-21 10:55:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:55:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-07-21 10:55:47,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:55:47,606 INFO L225 Difference]: With dead ends: 4140 [2022-07-21 10:55:47,606 INFO L226 Difference]: Without dead ends: 2833 [2022-07-21 10:55:47,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:55:47,628 INFO L413 NwaCegarLoop]: 1877 mSDtfsCounter, 2700 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 984 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 984 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:55:47,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 3951 Invalid, 2366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [984 Valid, 1381 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-07-21 10:55:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-07-21 10:55:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2495. [2022-07-21 10:55:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1759 states have (on average 1.3604320636725413) internal successors, (2393), 1869 states have internal predecessors, (2393), 542 states have call successors, (542), 194 states have call predecessors, (542), 193 states have return successors, (537), 489 states have call predecessors, (537), 537 states have call successors, (537) [2022-07-21 10:55:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3472 transitions. [2022-07-21 10:55:47,905 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3472 transitions. Word has length 33 [2022-07-21 10:55:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:55:47,906 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3472 transitions. [2022-07-21 10:55:47,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:55:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3472 transitions. [2022-07-21 10:55:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 10:55:47,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:47,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:55:47,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:55:47,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash 408730137, now seen corresponding path program 1 times [2022-07-21 10:55:47,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:47,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613498192] [2022-07-21 10:55:47,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:47,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:48,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:55:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:55:48,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:48,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613498192] [2022-07-21 10:55:48,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613498192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:55:48,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:55:48,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:55:48,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690060432] [2022-07-21 10:55:48,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:55:48,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:55:48,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:48,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:55:48,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:55:48,181 INFO L87 Difference]: Start difference. First operand 2495 states and 3472 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:55:52,643 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 [] [2022-07-21 10:55:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:55:53,013 INFO L93 Difference]: Finished difference Result 2859 states and 4046 transitions. [2022-07-21 10:55:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:55:53,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-21 10:55:53,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:55:53,032 INFO L225 Difference]: With dead ends: 2859 [2022-07-21 10:55:53,033 INFO L226 Difference]: Without dead ends: 2846 [2022-07-21 10:55:53,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:55:53,041 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 2171 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 645 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:55:53,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2284 Valid, 2272 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 647 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-07-21 10:55:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-07-21 10:55:53,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2495. [2022-07-21 10:55:53,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1759 states have (on average 1.3598635588402501) internal successors, (2392), 1869 states have internal predecessors, (2392), 542 states have call successors, (542), 194 states have call predecessors, (542), 193 states have return successors, (537), 489 states have call predecessors, (537), 537 states have call successors, (537) [2022-07-21 10:55:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3471 transitions. [2022-07-21 10:55:53,165 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3471 transitions. Word has length 33 [2022-07-21 10:55:53,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:55:53,166 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3471 transitions. [2022-07-21 10:55:53,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:55:53,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3471 transitions. [2022-07-21 10:55:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 10:55:53,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:53,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:55:53,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:55:53,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 465988439, now seen corresponding path program 1 times [2022-07-21 10:55:53,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:53,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320535562] [2022-07-21 10:55:53,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:53,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:55:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:55:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:53,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320535562] [2022-07-21 10:55:53,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320535562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:55:53,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:55:53,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:55:53,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841966365] [2022-07-21 10:55:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:55:53,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:55:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:55:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:55:53,449 INFO L87 Difference]: Start difference. First operand 2495 states and 3471 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:55:59,269 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 [] [2022-07-21 10:56:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:01,248 INFO L93 Difference]: Finished difference Result 8134 states and 12380 transitions. [2022-07-21 10:56:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:01,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-21 10:56:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:01,292 INFO L225 Difference]: With dead ends: 8134 [2022-07-21 10:56:01,292 INFO L226 Difference]: Without dead ends: 5651 [2022-07-21 10:56:01,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:01,311 INFO L413 NwaCegarLoop]: 2057 mSDtfsCounter, 2833 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 1025 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 4184 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1025 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:01,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 4184 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1025 Valid, 1432 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-07-21 10:56:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-07-21 10:56:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5289. [2022-07-21 10:56:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 3700 states have (on average 1.347837837837838) internal successors, (4987), 3940 states have internal predecessors, (4987), 1115 states have call successors, (1115), 386 states have call predecessors, (1115), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-21 10:56:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7746 transitions. [2022-07-21 10:56:01,587 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7746 transitions. Word has length 33 [2022-07-21 10:56:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:01,588 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 7746 transitions. [2022-07-21 10:56:01,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7746 transitions. [2022-07-21 10:56:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 10:56:01,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:01,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:01,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:56:01,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:01,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1560195809, now seen corresponding path program 1 times [2022-07-21 10:56:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:01,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354781177] [2022-07-21 10:56:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:01,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:56:01,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:01,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354781177] [2022-07-21 10:56:01,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354781177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:01,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:01,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:01,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586257498] [2022-07-21 10:56:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:01,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:01,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:01,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:01,849 INFO L87 Difference]: Start difference. First operand 5289 states and 7746 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:05,986 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 [] [2022-07-21 10:56:06,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:06,270 INFO L93 Difference]: Finished difference Result 5643 states and 8325 transitions. [2022-07-21 10:56:06,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:56:06,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-21 10:56:06,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:06,311 INFO L225 Difference]: With dead ends: 5643 [2022-07-21 10:56:06,311 INFO L226 Difference]: Without dead ends: 5640 [2022-07-21 10:56:06,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:06,318 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 2152 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 639 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:06,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 2217 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 644 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 10:56:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2022-07-21 10:56:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5288. [2022-07-21 10:56:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3700 states have (on average 1.3475675675675676) internal successors, (4986), 3939 states have internal predecessors, (4986), 1114 states have call successors, (1114), 386 states have call predecessors, (1114), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-21 10:56:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7744 transitions. [2022-07-21 10:56:06,577 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7744 transitions. Word has length 34 [2022-07-21 10:56:06,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:06,577 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7744 transitions. [2022-07-21 10:56:06,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7744 transitions. [2022-07-21 10:56:06,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 10:56:06,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:06,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:06,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:56:06,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:06,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:06,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1120890778, now seen corresponding path program 1 times [2022-07-21 10:56:06,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:06,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125111877] [2022-07-21 10:56:06,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:06,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:56:06,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:06,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125111877] [2022-07-21 10:56:06,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125111877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:06,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:06,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:06,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400642311] [2022-07-21 10:56:06,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:06,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:06,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:06,836 INFO L87 Difference]: Start difference. First operand 5288 states and 7744 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:10,695 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 [] [2022-07-21 10:56:11,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:11,023 INFO L93 Difference]: Finished difference Result 5642 states and 8323 transitions. [2022-07-21 10:56:11,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:56:11,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-21 10:56:11,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:11,112 INFO L225 Difference]: With dead ends: 5642 [2022-07-21 10:56:11,112 INFO L226 Difference]: Without dead ends: 5639 [2022-07-21 10:56:11,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:11,118 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 2150 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 636 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:11,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 2222 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 646 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 10:56:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-07-21 10:56:11,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5287. [2022-07-21 10:56:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5287 states, 3700 states have (on average 1.3472972972972972) internal successors, (4985), 3938 states have internal predecessors, (4985), 1113 states have call successors, (1113), 386 states have call predecessors, (1113), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-21 10:56:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 7742 transitions. [2022-07-21 10:56:11,352 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 7742 transitions. Word has length 35 [2022-07-21 10:56:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:11,355 INFO L495 AbstractCegarLoop]: Abstraction has 5287 states and 7742 transitions. [2022-07-21 10:56:11,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 7742 transitions. [2022-07-21 10:56:11,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 10:56:11,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:11,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:11,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:56:11,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:11,360 INFO L85 PathProgramCache]: Analyzing trace with hash 387341572, now seen corresponding path program 1 times [2022-07-21 10:56:11,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:11,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790446368] [2022-07-21 10:56:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:11,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:56:11,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:11,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790446368] [2022-07-21 10:56:11,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790446368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:11,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:11,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834307208] [2022-07-21 10:56:11,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:11,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:11,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:11,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:11,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:11,556 INFO L87 Difference]: Start difference. First operand 5287 states and 7742 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:15,612 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 [] [2022-07-21 10:56:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:15,941 INFO L93 Difference]: Finished difference Result 5641 states and 8321 transitions. [2022-07-21 10:56:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:56:15,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-21 10:56:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:15,976 INFO L225 Difference]: With dead ends: 5641 [2022-07-21 10:56:15,977 INFO L226 Difference]: Without dead ends: 5638 [2022-07-21 10:56:15,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:15,982 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 2146 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:15,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 2212 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 641 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 10:56:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2022-07-21 10:56:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5286. [2022-07-21 10:56:16,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3700 states have (on average 1.347027027027027) internal successors, (4984), 3937 states have internal predecessors, (4984), 1112 states have call successors, (1112), 386 states have call predecessors, (1112), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-21 10:56:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7740 transitions. [2022-07-21 10:56:16,231 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7740 transitions. Word has length 36 [2022-07-21 10:56:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:16,232 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7740 transitions. [2022-07-21 10:56:16,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:16,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7740 transitions. [2022-07-21 10:56:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 10:56:16,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:16,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:16,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:56:16,234 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:16,234 INFO L85 PathProgramCache]: Analyzing trace with hash -877842467, now seen corresponding path program 1 times [2022-07-21 10:56:16,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:16,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778550816] [2022-07-21 10:56:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:16,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:56:16,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:16,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778550816] [2022-07-21 10:56:16,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778550816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:16,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:16,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:16,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762943691] [2022-07-21 10:56:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:16,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:16,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:16,467 INFO L87 Difference]: Start difference. First operand 5286 states and 7740 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:20,951 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 [] [2022-07-21 10:56:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:21,273 INFO L93 Difference]: Finished difference Result 5640 states and 8319 transitions. [2022-07-21 10:56:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:56:21,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-07-21 10:56:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:21,302 INFO L225 Difference]: With dead ends: 5640 [2022-07-21 10:56:21,302 INFO L226 Difference]: Without dead ends: 5620 [2022-07-21 10:56:21,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:21,307 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 2143 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 638 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:21,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2216 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 642 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-07-21 10:56:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-21 10:56:21,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5268. [2022-07-21 10:56:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 3688 states have (on average 1.3473427331887202) internal successors, (4969), 3924 states have internal predecessors, (4969), 1108 states have call successors, (1108), 384 states have call predecessors, (1108), 471 states have return successors, (1641), 1067 states have call predecessors, (1641), 1107 states have call successors, (1641) [2022-07-21 10:56:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 7718 transitions. [2022-07-21 10:56:21,593 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 7718 transitions. Word has length 37 [2022-07-21 10:56:21,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:21,595 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 7718 transitions. [2022-07-21 10:56:21,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 10:56:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 7718 transitions. [2022-07-21 10:56:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 10:56:21,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:21,609 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:21,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:56:21,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -34419034, now seen corresponding path program 1 times [2022-07-21 10:56:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:21,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236126648] [2022-07-21 10:56:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:56:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:56:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:56:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:56:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 10:56:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 10:56:21,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:21,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236126648] [2022-07-21 10:56:21,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236126648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:21,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:21,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:56:21,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918278614] [2022-07-21 10:56:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:21,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:56:21,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:21,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:56:21,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:56:21,902 INFO L87 Difference]: Start difference. First operand 5268 states and 7718 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 10:56:27,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:29,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:29,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:29,964 INFO L93 Difference]: Finished difference Result 11596 states and 17194 transitions. [2022-07-21 10:56:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:56:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2022-07-21 10:56:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:30,000 INFO L225 Difference]: With dead ends: 11596 [2022-07-21 10:56:30,000 INFO L226 Difference]: Without dead ends: 6340 [2022-07-21 10:56:30,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:56:30,026 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 1417 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 900 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5208 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 900 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:30,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5208 Invalid, 2659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [900 Valid, 1757 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-07-21 10:56:30,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-07-21 10:56:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 5572. [2022-07-21 10:56:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 3935 states have (on average 1.3468869123252858) internal successors, (5300), 4173 states have internal predecessors, (5300), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:56:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 8191 transitions. [2022-07-21 10:56:30,384 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 8191 transitions. Word has length 113 [2022-07-21 10:56:30,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:30,384 INFO L495 AbstractCegarLoop]: Abstraction has 5572 states and 8191 transitions. [2022-07-21 10:56:30,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 10:56:30,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 8191 transitions. [2022-07-21 10:56:30,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 10:56:30,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:30,398 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:30,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:56:30,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:30,399 INFO L85 PathProgramCache]: Analyzing trace with hash 189635978, now seen corresponding path program 1 times [2022-07-21 10:56:30,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190178848] [2022-07-21 10:56:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:30,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:56:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:56:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 10:56:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 10:56:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 10:56:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 10:56:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:56:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:56:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 10:56:30,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:30,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190178848] [2022-07-21 10:56:30,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190178848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:30,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:30,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:56:30,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879416260] [2022-07-21 10:56:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:30,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:56:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:30,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:56:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:56:30,756 INFO L87 Difference]: Start difference. First operand 5572 states and 8191 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:56:36,297 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 [] [2022-07-21 10:56:36,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:36,784 INFO L93 Difference]: Finished difference Result 11904 states and 17677 transitions. [2022-07-21 10:56:36,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:56:36,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-07-21 10:56:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:36,815 INFO L225 Difference]: With dead ends: 11904 [2022-07-21 10:56:36,816 INFO L226 Difference]: Without dead ends: 6348 [2022-07-21 10:56:36,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:56:36,840 INFO L413 NwaCegarLoop]: 1694 mSDtfsCounter, 2002 mSDsluCounter, 3032 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 1339 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 4726 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1339 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:36,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 4726 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1339 Valid, 1329 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 10:56:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2022-07-21 10:56:37,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 5580. [2022-07-21 10:56:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 3943 states have (on average 1.3461831093076337) internal successors, (5308), 4181 states have internal predecessors, (5308), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:56:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 8199 transitions. [2022-07-21 10:56:37,173 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 8199 transitions. Word has length 142 [2022-07-21 10:56:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:37,173 INFO L495 AbstractCegarLoop]: Abstraction has 5580 states and 8199 transitions. [2022-07-21 10:56:37,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:56:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 8199 transitions. [2022-07-21 10:56:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 10:56:37,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:37,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:37,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 10:56:37,186 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:37,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash 66970766, now seen corresponding path program 1 times [2022-07-21 10:56:37,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:37,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729342635] [2022-07-21 10:56:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:37,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:56:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:56:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:56:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 10:56:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:56:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:56:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 10:56:37,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:37,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729342635] [2022-07-21 10:56:37,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729342635] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:56:37,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720498650] [2022-07-21 10:56:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:37,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:56:37,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:56:37,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:56:37,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 10:56:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:56:38,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:56:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-21 10:56:38,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:56:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 10:56:38,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720498650] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:56:38,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:56:38,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2022-07-21 10:56:38,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449878144] [2022-07-21 10:56:38,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:56:38,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 10:56:38,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:38,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 10:56:38,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:56:38,575 INFO L87 Difference]: Start difference. First operand 5580 states and 8199 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 10:56:43,896 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 [] [2022-07-21 10:56:45,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:46,461 INFO L93 Difference]: Finished difference Result 11920 states and 17693 transitions. [2022-07-21 10:56:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:56:46,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2022-07-21 10:56:46,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:46,492 INFO L225 Difference]: With dead ends: 11920 [2022-07-21 10:56:46,492 INFO L226 Difference]: Without dead ends: 6356 [2022-07-21 10:56:46,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:56:46,514 INFO L413 NwaCegarLoop]: 1694 mSDtfsCounter, 2005 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 1344 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 6158 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1344 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:46,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 6158 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1344 Valid, 1785 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-07-21 10:56:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-07-21 10:56:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 5596. [2022-07-21 10:56:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 3959 states have (on average 1.3447840363728214) internal successors, (5324), 4197 states have internal predecessors, (5324), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:56:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 8215 transitions. [2022-07-21 10:56:46,833 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 8215 transitions. Word has length 144 [2022-07-21 10:56:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:46,835 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 8215 transitions. [2022-07-21 10:56:46,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 10:56:46,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 8215 transitions. [2022-07-21 10:56:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-21 10:56:46,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:46,851 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:46,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:56:47,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 10:56:47,064 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1850180974, now seen corresponding path program 2 times [2022-07-21 10:56:47,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524024072] [2022-07-21 10:56:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:47,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:56:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:56:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:56:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 10:56:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 10:56:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:56:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:56:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 10:56:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:47,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524024072] [2022-07-21 10:56:47,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524024072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:47,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:47,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 10:56:47,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242762044] [2022-07-21 10:56:47,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:47,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 10:56:47,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 10:56:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:56:47,416 INFO L87 Difference]: Start difference. First operand 5596 states and 8215 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:56:56,752 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 [] [2022-07-21 10:56:58,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:00,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:03,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:05,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:06,711 INFO L93 Difference]: Finished difference Result 18282 states and 27193 transitions. [2022-07-21 10:57:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 10:57:06,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-07-21 10:57:06,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:06,763 INFO L225 Difference]: With dead ends: 18282 [2022-07-21 10:57:06,763 INFO L226 Difference]: Without dead ends: 12702 [2022-07-21 10:57:06,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:57:06,779 INFO L413 NwaCegarLoop]: 3299 mSDtfsCounter, 3048 mSDsluCounter, 9620 mSDsCounter, 0 mSdLazyCounter, 4621 mSolverCounterSat, 1473 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 12919 SdHoareTripleChecker+Invalid, 6098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 4621 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:06,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 12919 Invalid, 6098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 4621 Invalid, 4 Unknown, 0 Unchecked, 18.5s Time] [2022-07-21 10:57:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12702 states. [2022-07-21 10:57:07,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12702 to 5604. [2022-07-21 10:57:07,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 3967 states have (on average 1.3440887320393244) internal successors, (5332), 4205 states have internal predecessors, (5332), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:57:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 8223 transitions. [2022-07-21 10:57:07,298 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 8223 transitions. Word has length 146 [2022-07-21 10:57:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:07,299 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 8223 transitions. [2022-07-21 10:57:07,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:57:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 8223 transitions. [2022-07-21 10:57:07,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-21 10:57:07,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:07,314 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:07,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 10:57:07,314 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:07,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:07,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1709632364, now seen corresponding path program 1 times [2022-07-21 10:57:07,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:07,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917783316] [2022-07-21 10:57:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:57:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:57:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 10:57:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 10:57:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-21 10:57:07,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917783316] [2022-07-21 10:57:07,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917783316] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134894420] [2022-07-21 10:57:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:07,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:07,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:07,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 10:57:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:08,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 3728 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-21 10:57:08,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:08,857 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 10:57:08,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:08,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134894420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:08,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:08,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-07-21 10:57:08,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252409219] [2022-07-21 10:57:08,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:08,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 10:57:08,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:08,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 10:57:08,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:57:08,860 INFO L87 Difference]: Start difference. First operand 5604 states and 8223 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:57:11,416 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 [] [2022-07-21 10:57:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:11,540 INFO L93 Difference]: Finished difference Result 11453 states and 16809 transitions. [2022-07-21 10:57:11,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:57:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-07-21 10:57:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:11,567 INFO L225 Difference]: With dead ends: 11453 [2022-07-21 10:57:11,567 INFO L226 Difference]: Without dead ends: 5865 [2022-07-21 10:57:11,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:57:11,585 INFO L413 NwaCegarLoop]: 1842 mSDtfsCounter, 130 mSDsluCounter, 12703 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 14545 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:11,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 14545 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 10:57:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2022-07-21 10:57:12,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5616. [2022-07-21 10:57:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 3979 states have (on average 1.3430510178436794) internal successors, (5344), 4213 states have internal predecessors, (5344), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1121 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:57:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 8235 transitions. [2022-07-21 10:57:12,058 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 8235 transitions. Word has length 146 [2022-07-21 10:57:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:12,059 INFO L495 AbstractCegarLoop]: Abstraction has 5616 states and 8235 transitions. [2022-07-21 10:57:12,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 10:57:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 8235 transitions. [2022-07-21 10:57:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 10:57:12,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:12,073 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:12,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:12,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 10:57:12,287 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash -348627764, now seen corresponding path program 1 times [2022-07-21 10:57:12,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:12,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801712226] [2022-07-21 10:57:12,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:12,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:57:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:57:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 10:57:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 10:57:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-21 10:57:12,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:12,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801712226] [2022-07-21 10:57:12,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801712226] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:12,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483522100] [2022-07-21 10:57:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:12,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:12,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:12,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:12,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 10:57:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:13,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 3754 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:57:13,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-21 10:57:13,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:13,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483522100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:13,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:13,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 10:57:13,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379986714] [2022-07-21 10:57:13,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:13,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:57:13,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:57:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:57:13,618 INFO L87 Difference]: Start difference. First operand 5616 states and 8235 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 10:57:13,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:13,917 INFO L93 Difference]: Finished difference Result 11769 states and 17343 transitions. [2022-07-21 10:57:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:57:13,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2022-07-21 10:57:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:13,948 INFO L225 Difference]: With dead ends: 11769 [2022-07-21 10:57:13,949 INFO L226 Difference]: Without dead ends: 6169 [2022-07-21 10:57:13,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:57:13,969 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 134 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:13,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3611 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:57:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-07-21 10:57:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5620. [2022-07-21 10:57:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.342706502636204) internal successors, (5348), 4217 states have internal predecessors, (5348), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1121 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-21 10:57:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8239 transitions. [2022-07-21 10:57:14,391 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8239 transitions. Word has length 152 [2022-07-21 10:57:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:14,391 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8239 transitions. [2022-07-21 10:57:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 10:57:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8239 transitions. [2022-07-21 10:57:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 10:57:14,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:14,406 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:14,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:14,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:14,619 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash 34508044, now seen corresponding path program 1 times [2022-07-21 10:57:14,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:14,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82053778] [2022-07-21 10:57:14,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:14,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:57:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:57:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 10:57:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 10:57:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 10:57:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:57:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 10:57:15,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:15,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82053778] [2022-07-21 10:57:15,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82053778] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:15,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795040781] [2022-07-21 10:57:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:15,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:15,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:15,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:15,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 10:57:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-21 10:57:16,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 10:57:16,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:16,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795040781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:16,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:16,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2022-07-21 10:57:16,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003268519] [2022-07-21 10:57:16,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:16,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:57:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:16,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:57:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:57:16,074 INFO L87 Difference]: Start difference. First operand 5620 states and 8239 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 10:57:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:16,412 INFO L93 Difference]: Finished difference Result 11232 states and 16469 transitions. [2022-07-21 10:57:16,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:57:16,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2022-07-21 10:57:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:16,445 INFO L225 Difference]: With dead ends: 11232 [2022-07-21 10:57:16,446 INFO L226 Difference]: Without dead ends: 5620 [2022-07-21 10:57:16,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:57:16,467 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 0 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7002 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:16,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7002 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:57:16,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-21 10:57:16,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-21 10:57:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.342706502636204) internal successors, (5348), 4217 states have internal predecessors, (5348), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-21 10:57:16,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8235 transitions. [2022-07-21 10:57:16,881 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8235 transitions. Word has length 163 [2022-07-21 10:57:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:16,881 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8235 transitions. [2022-07-21 10:57:16,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 10:57:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8235 transitions. [2022-07-21 10:57:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 10:57:16,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:16,898 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:16,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:17,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:17,112 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:17,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:17,112 INFO L85 PathProgramCache]: Analyzing trace with hash 794779412, now seen corresponding path program 2 times [2022-07-21 10:57:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:17,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990182276] [2022-07-21 10:57:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:17,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:57:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 10:57:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 10:57:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 10:57:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 10:57:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 10:57:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-21 10:57:17,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:17,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990182276] [2022-07-21 10:57:17,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990182276] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:17,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448649544] [2022-07-21 10:57:17,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 10:57:17,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:17,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:17,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:17,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 10:57:18,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 10:57:18,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:57:18,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 3830 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 10:57:18,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-21 10:57:18,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:18,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448649544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:18,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:18,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2022-07-21 10:57:18,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802177794] [2022-07-21 10:57:18,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:18,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:57:18,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:18,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:57:18,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:57:18,952 INFO L87 Difference]: Start difference. First operand 5620 states and 8235 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 10:57:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:19,481 INFO L93 Difference]: Finished difference Result 11224 states and 16549 transitions. [2022-07-21 10:57:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:57:19,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 169 [2022-07-21 10:57:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:19,510 INFO L225 Difference]: With dead ends: 11224 [2022-07-21 10:57:19,511 INFO L226 Difference]: Without dead ends: 5620 [2022-07-21 10:57:19,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:57:19,534 INFO L413 NwaCegarLoop]: 2182 mSDtfsCounter, 1866 mSDsluCounter, 8277 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 10459 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:19,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 10459 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:57:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-21 10:57:19,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-21 10:57:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.3417022344966105) internal successors, (5344), 4217 states have internal predecessors, (5344), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-21 10:57:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8231 transitions. [2022-07-21 10:57:19,959 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8231 transitions. Word has length 169 [2022-07-21 10:57:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8231 transitions. [2022-07-21 10:57:19,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 10:57:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8231 transitions. [2022-07-21 10:57:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-21 10:57:19,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:19,974 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:20,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:20,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 10:57:20,195 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:20,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1528264412, now seen corresponding path program 3 times [2022-07-21 10:57:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:20,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459703918] [2022-07-21 10:57:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:20,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:57:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 10:57:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 10:57:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 10:57:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 10:57:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 10:57:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-21 10:57:20,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:20,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459703918] [2022-07-21 10:57:20,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459703918] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:20,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093176177] [2022-07-21 10:57:20,676 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 10:57:20,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:20,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:20,678 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:20,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 10:57:21,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-21 10:57:21,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:57:21,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 3320 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-21 10:57:21,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-21 10:57:21,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:21,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093176177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:21,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:21,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11] total 23 [2022-07-21 10:57:21,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914431826] [2022-07-21 10:57:21,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:21,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 10:57:21,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 10:57:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-21 10:57:21,896 INFO L87 Difference]: Start difference. First operand 5620 states and 8231 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 10:57:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:24,465 INFO L93 Difference]: Finished difference Result 11871 states and 17611 transitions. [2022-07-21 10:57:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 10:57:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 175 [2022-07-21 10:57:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:24,499 INFO L225 Difference]: With dead ends: 11871 [2022-07-21 10:57:24,499 INFO L226 Difference]: Without dead ends: 6267 [2022-07-21 10:57:24,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=1211, Unknown=0, NotChecked=0, Total=1332 [2022-07-21 10:57:24,520 INFO L413 NwaCegarLoop]: 3677 mSDtfsCounter, 2136 mSDsluCounter, 42246 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 45923 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:24,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 45923 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 10:57:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2022-07-21 10:57:25,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 5618. [2022-07-21 10:57:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 3981 states have (on average 1.340366742024617) internal successors, (5336), 4215 states have internal predecessors, (5336), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-21 10:57:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 8223 transitions. [2022-07-21 10:57:25,053 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 8223 transitions. Word has length 175 [2022-07-21 10:57:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:25,053 INFO L495 AbstractCegarLoop]: Abstraction has 5618 states and 8223 transitions. [2022-07-21 10:57:25,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 10:57:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 8223 transitions. [2022-07-21 10:57:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-21 10:57:25,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:25,079 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:25,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:25,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 10:57:25,304 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:25,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:25,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1090941869, now seen corresponding path program 1 times [2022-07-21 10:57:25,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:25,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572289539] [2022-07-21 10:57:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:25,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:57:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 10:57:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 10:57:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 10:57:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 10:57:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 10:57:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 10:57:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 10:57:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:57:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 10:57:25,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:25,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572289539] [2022-07-21 10:57:25,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572289539] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:25,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202155048] [2022-07-21 10:57:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:25,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:25,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:25,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:25,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 10:57:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 10:57:26,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-21 10:57:26,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:26,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202155048] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:26,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:26,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2022-07-21 10:57:26,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631814088] [2022-07-21 10:57:26,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:26,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:57:26,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:26,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:57:26,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:57:26,954 INFO L87 Difference]: Start difference. First operand 5618 states and 8223 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 10:57:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:27,419 INFO L93 Difference]: Finished difference Result 11777 states and 17319 transitions. [2022-07-21 10:57:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:57:27,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 215 [2022-07-21 10:57:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:27,452 INFO L225 Difference]: With dead ends: 11777 [2022-07-21 10:57:27,452 INFO L226 Difference]: Without dead ends: 6175 [2022-07-21 10:57:27,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:57:27,474 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 140 mSDsluCounter, 9143 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 10996 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:27,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 10996 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:57:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-07-21 10:57:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 5622. [2022-07-21 10:57:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5622 states, 3985 states have (on average 1.3400250941028857) internal successors, (5340), 4215 states have internal predecessors, (5340), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1125 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-21 10:57:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5622 states to 5622 states and 8227 transitions. [2022-07-21 10:57:27,896 INFO L78 Accepts]: Start accepts. Automaton has 5622 states and 8227 transitions. Word has length 215 [2022-07-21 10:57:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:27,897 INFO L495 AbstractCegarLoop]: Abstraction has 5622 states and 8227 transitions. [2022-07-21 10:57:27,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 10:57:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5622 states and 8227 transitions. [2022-07-21 10:57:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-21 10:57:27,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:27,913 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:27,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:28,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:28,128 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2056312139, now seen corresponding path program 2 times [2022-07-21 10:57:28,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:28,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854941240] [2022-07-21 10:57:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:28,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:57:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 10:57:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 10:57:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 10:57:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-21 10:57:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:57:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 10:57:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 10:57:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:57:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 10:57:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:57:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 10:57:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854941240] [2022-07-21 10:57:28,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854941240] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:28,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466538637] [2022-07-21 10:57:28,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 10:57:28,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:28,755 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:57:28,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 10:57:29,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 10:57:29,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:57:29,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 4284 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-21 10:57:29,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:30,531 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-21 10:57:30,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-21 10:57:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 10:57:30,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:57:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-21 10:57:31,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466538637] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:57:31,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:57:31,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 8] total 32 [2022-07-21 10:57:31,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204516200] [2022-07-21 10:57:31,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:57:31,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-21 10:57:31,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-21 10:57:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-07-21 10:57:31,202 INFO L87 Difference]: Start difference. First operand 5622 states and 8227 transitions. Second operand has 32 states, 32 states have (on average 9.65625) internal successors, (309), 22 states have internal predecessors, (309), 8 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (59), 14 states have call predecessors, (59), 8 states have call successors, (59) [2022-07-21 10:57:47,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:49,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:53,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:55,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:57,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:59,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:01,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:03,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:05,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:07,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:09,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:11,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:13,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:15,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:17,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:19,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:21,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:23,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:25,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:27,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:29,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:31,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:41,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:43,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:46,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:49,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:51,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:53,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:55,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:57,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:59,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:01,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:03,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:05,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:07,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:09,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:11,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:13,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:15,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:17,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:19,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:21,357 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 []