./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 ae007674 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-dev-ae00767 [2021-12-28 03:53:05,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:53:05,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:53:05,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:53:05,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:53:05,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:53:05,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:53:05,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:53:05,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:53:05,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:53:05,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:53:05,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:53:05,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:53:05,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:53:05,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:53:05,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:53:05,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:53:05,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:53:05,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:53:05,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:53:05,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:53:05,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:53:05,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:53:05,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:53:05,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:53:05,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:53:05,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:53:05,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:53:05,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:53:05,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:53:05,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:53:05,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:53:05,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:53:05,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:53:05,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:53:05,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:53:05,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:53:05,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:53:05,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:53:05,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:53:05,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:53:05,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:53:05,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:53:05,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:53:05,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:53:05,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:53:05,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:53:05,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:53:05,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:53:05,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:53:05,158 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:53:05,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:53:05,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:53:05,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:53:05,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:53:05,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:53:05,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:53:05,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:53:05,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:53:05,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:53:05,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:53:05,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:53:05,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:53:05,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:53:05,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:53:05,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:53:05,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:53:05,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd [2021-12-28 03:53:05,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:53:05,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:53:05,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:53:05,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:53:05,456 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:53:05,457 INFO L432 ainManager$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 [2021-12-28 03:53:05,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916e2f8a4/4f29050e8d174d0e8d34ee88b9e8865e/FLAG404edfa18 [2021-12-28 03:53:06,044 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:53:06,044 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 [2021-12-28 03:53:06,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916e2f8a4/4f29050e8d174d0e8d34ee88b9e8865e/FLAG404edfa18 [2021-12-28 03:53:06,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916e2f8a4/4f29050e8d174d0e8d34ee88b9e8865e [2021-12-28 03:53:06,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:53:06,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:53:06,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:53:06,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:53:06,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:53:06,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:53:06" (1/1) ... [2021-12-28 03:53:06,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71be9bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:06, skipping insertion in model container [2021-12-28 03:53:06,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:53:06" (1/1) ... [2021-12-28 03:53:06,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:53:06,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:53:06,963 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] [2021-12-28 03:53:07,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:53:07,776 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:53:07,893 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] [2021-12-28 03:53:08,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:53:08,180 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:53:08,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08 WrapperNode [2021-12-28 03:53:08,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:53:08,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:53:08,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:53:08,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:53:08,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,419 INFO L137 Inliner]: procedures = 220, calls = 1907, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3491 [2021-12-28 03:53:08,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:53:08,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:53:08,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:53:08,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:53:08,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:53:08,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:53:08,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:53:08,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:53:08,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:53:08,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:53:08,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:53:08,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:53:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_complete [2021-12-28 03:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_complete [2021-12-28 03:53:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure dout_reset [2021-12-28 03:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_reset [2021-12-28 03:53:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_isocpipes [2021-12-28 03:53:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_isocpipes [2021-12-28 03:53:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:53:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:53:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_le16p [2021-12-28 03:53:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_le16p [2021-12-28 03:53:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:53:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:53:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-28 03:53:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-28 03:53:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2021-12-28 03:53:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2021-12-28 03:53:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:53:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_st5481 [2021-12-28 03:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_st5481 [2021-12-28 03:53:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-28 03:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-28 03:53:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_next_ctrl_msg [2021-12-28 03:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_next_ctrl_msg [2021-12-28 03:53:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_usb [2021-12-28 03:53:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_usb [2021-12-28 03:53:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out [2021-12-28 03:53:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out [2021-12-28 03:53:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_device_ctrl_msg [2021-12-28 03:53:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_device_ctrl_msg [2021-12-28 03:53:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:53:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure FsmEvent [2021-12-28 03:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmEvent [2021-12-28 03:53:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:53:08,757 INFO L130 BoogieDeclarations]: Found specification of procedure led_blink [2021-12-28 03:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure led_blink [2021-12-28 03:53:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_in_mode [2021-12-28 03:53:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_in_mode [2021-12-28 03:53:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-28 03:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-28 03:53:08,759 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_start_rcv [2021-12-28 03:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_start_rcv [2021-12-28 03:53:08,759 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:53:08,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2021-12-28 03:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2021-12-28 03:53:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2021-12-28 03:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2021-12-28 03:53:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_2 [2021-12-28 03:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_2 [2021-12-28 03:53:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-12-28 03:53:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-12-28 03:53:08,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25 [2021-12-28 03:53:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25 [2021-12-28 03:53:08,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:53:08,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-12-28 03:53:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-12-28 03:53:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2021-12-28 03:53:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2021-12-28 03:53:08,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-28 03:53:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-28 03:53:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure ph_connect [2021-12-28 03:53:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_connect [2021-12-28 03:53:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_mode [2021-12-28 03:53:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_mode [2021-12-28 03:53:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure B_L1L2 [2021-12-28 03:53:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure B_L1L2 [2021-12-28 03:53:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2021-12-28 03:53:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2021-12-28 03:53:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2021-12-28 03:53:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2021-12-28 03:53:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:53:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-12-28 03:53:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-12-28 03:53:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-28 03:53:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-28 03:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_isocpipes [2021-12-28 03:53:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_isocpipes [2021-12-28 03:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_out_init [2021-12-28 03:53:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_out_init [2021-12-28 03:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:53:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure ph_disconnect [2021-12-28 03:53:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_disconnect [2021-12-28 03:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f6 [2021-12-28 03:53:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f6 [2021-12-28 03:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f7 [2021-12-28 03:53:08,769 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f7 [2021-12-28 03:53:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f8 [2021-12-28 03:53:08,769 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f8 [2021-12-28 03:53:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_b_l2l1 [2021-12-28 03:53:08,770 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_b_l2l1 [2021-12-28 03:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f3 [2021-12-28 03:53:08,770 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f3 [2021-12-28 03:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure dout_short_fifo [2021-12-28 03:53:08,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_short_fifo [2021-12-28 03:53:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_b [2021-12-28 03:53:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_b [2021-12-28 03:53:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:53:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:53:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:53:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:53:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_in_complete [2021-12-28 03:53:08,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_in_complete [2021-12-28 03:53:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out_complete [2021-12-28 03:53:08,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out_complete [2021-12-28 03:53:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_start_xfer [2021-12-28 03:53:08,773 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_start_xfer [2021-12-28 03:53:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_pipe_reset [2021-12-28 03:53:08,774 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_pipe_reset [2021-12-28 03:53:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:53:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:53:08,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:53:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure dout_check_busy [2021-12-28 03:53:08,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_check_busy [2021-12-28 03:53:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b_out [2021-12-28 03:53:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b_out [2021-12-28 03:53:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure FsmFree [2021-12-28 03:53:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmFree [2021-12-28 03:53:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:53:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:53:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_encode [2021-12-28 03:53:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_encode [2021-12-28 03:53:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out [2021-12-28 03:53:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out [2021-12-28 03:53:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:53:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 03:53:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 03:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 03:53:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 03:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_den [2021-12-28 03:53:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_den [2021-12-28 03:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 03:53:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 03:53:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:53:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:53:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure dout_stop [2021-12-28 03:53:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_stop [2021-12-28 03:53:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure dout_underrun [2021-12-28 03:53:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_underrun [2021-12-28 03:53:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-28 03:53:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-28 03:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_in [2021-12-28 03:53:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_in [2021-12-28 03:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:53:08,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2021-12-28 03:53:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2021-12-28 03:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_d_exit [2021-12-28 03:53:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_d_exit [2021-12-28 03:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure dump_iso_packet___0 [2021-12-28 03:53:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_iso_packet___0 [2021-12-28 03:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_msg [2021-12-28 03:53:08,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_msg [2021-12-28 03:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 03:53:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 03:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-28 03:53:08,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-28 03:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 03:53:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 03:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 03:53:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 03:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b [2021-12-28 03:53:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b [2021-12-28 03:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure dump_packet [2021-12-28 03:53:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_packet [2021-12-28 03:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d [2021-12-28 03:53:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d [2021-12-28 03:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:53:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure l1_activate [2021-12-28 03:53:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_activate [2021-12-28 03:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure FsmNew [2021-12-28 03:53:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmNew [2021-12-28 03:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure l1_timer3 [2021-12-28 03:53:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_timer3 [2021-12-28 03:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_stop [2021-12-28 03:53:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_stop [2021-12-28 03:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_enable_fifo [2021-12-28 03:53:08,789 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_enable_fifo [2021-12-28 03:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out_complete [2021-12-28 03:53:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out_complete [2021-12-28 03:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_complete [2021-12-28 03:53:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_complete [2021-12-28 03:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_in [2021-12-28 03:53:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_in [2021-12-28 03:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure D_L1L2 [2021-12-28 03:53:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure D_L1L2 [2021-12-28 03:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure dout_complete [2021-12-28 03:53:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_complete [2021-12-28 03:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure FsmChangeState [2021-12-28 03:53:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmChangeState [2021-12-28 03:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_ph_command [2021-12-28 03:53:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_ph_command [2021-12-28 03:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure dout_start_xmit [2021-12-28 03:53:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_start_xmit [2021-12-28 03:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d_out [2021-12-28 03:53:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d_out [2021-12-28 03:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-28 03:53:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-28 03:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-28 03:53:08,793 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-28 03:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_nr [2021-12-28 03:53:08,793 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_nr [2021-12-28 03:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:53:08,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:53:09,361 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:53:09,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:53:09,485 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:53:14,250 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-28 03:53:18,941 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:53:18,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:53:18,953 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:53:18,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:53:18 BoogieIcfgContainer [2021-12-28 03:53:18,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:53:18,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:53:18,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:53:18,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:53:18,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:53:06" (1/3) ... [2021-12-28 03:53:18,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c040e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:53:18, skipping insertion in model container [2021-12-28 03:53:18,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (2/3) ... [2021-12-28 03:53:18,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c040e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:53:18, skipping insertion in model container [2021-12-28 03:53:18,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:53:18" (3/3) ... [2021-12-28 03:53:18,961 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2021-12-28 03:53:18,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:53:18,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:53:19,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:53:19,005 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:53:19,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:53:19,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 884 states have (on average 1.3608597285067874) internal successors, (1203), 950 states have internal predecessors, (1203), 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) [2021-12-28 03:53:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-28 03:53:19,038 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:19,039 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:19,040 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash 517411944, now seen corresponding path program 1 times [2021-12-28 03:53:19,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:19,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299219646] [2021-12-28 03:53:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:19,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:53:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 03:53:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 03:53:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:53:19,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:19,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299219646] [2021-12-28 03:53:19,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299219646] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:19,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:19,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:19,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431192739] [2021-12-28 03:53:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:19,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:19,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:19,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:19,725 INFO L87 Difference]: Start difference. First operand has 1266 states, 884 states have (on average 1.3608597285067874) internal successors, (1203), 950 states have internal predecessors, (1203), 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) [2021-12-28 03:53:25,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:26,254 INFO L93 Difference]: Finished difference Result 4074 states and 6055 transitions. [2021-12-28 03:53:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:53:26,257 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 [2021-12-28 03:53:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:26,286 INFO L225 Difference]: With dead ends: 4074 [2021-12-28 03:53:26,287 INFO L226 Difference]: Without dead ends: 2789 [2021-12-28 03:53:26,302 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:53:26,309 INFO L933 BasicCegarLoop]: 1842 mSDtfsCounter, 2666 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 986 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:26,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2821 Valid, 3848 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [986 Valid, 1375 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-12-28 03:53:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2021-12-28 03:53:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2451. [2021-12-28 03:53:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 1715 states have (on average 1.3521865889212827) internal successors, (2319), 1825 states have internal predecessors, (2319), 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) [2021-12-28 03:53:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 3398 transitions. [2021-12-28 03:53:26,515 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 3398 transitions. Word has length 33 [2021-12-28 03:53:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:26,516 INFO L470 AbstractCegarLoop]: Abstraction has 2451 states and 3398 transitions. [2021-12-28 03:53:26,516 INFO L471 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) [2021-12-28 03:53:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 3398 transitions. [2021-12-28 03:53:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-28 03:53:26,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:26,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:26,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:53:26,524 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:26,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:26,525 INFO L85 PathProgramCache]: Analyzing trace with hash -637694461, now seen corresponding path program 1 times [2021-12-28 03:53:26,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:26,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746867856] [2021-12-28 03:53:26,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:26,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:26,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:26,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746867856] [2021-12-28 03:53:26,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746867856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:26,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:26,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 03:53:26,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865346912] [2021-12-28 03:53:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:26,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 03:53:26,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 03:53:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:53:26,801 INFO L87 Difference]: Start difference. First operand 2451 states and 3398 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 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) [2021-12-28 03:53:32,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:34,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:35,043 INFO L93 Difference]: Finished difference Result 5444 states and 7661 transitions. [2021-12-28 03:53:35,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 03:53:35,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 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 [2021-12-28 03:53:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:35,058 INFO L225 Difference]: With dead ends: 5444 [2021-12-28 03:53:35,059 INFO L226 Difference]: Without dead ends: 3005 [2021-12-28 03:53:35,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:53:35,070 INFO L933 BasicCegarLoop]: 1835 mSDtfsCounter, 1044 mSDsluCounter, 8143 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 496 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 9978 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:35,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 9978 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 2836 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-12-28 03:53:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2021-12-28 03:53:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2453. [2021-12-28 03:53:35,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 1717 states have (on average 1.351193942923704) internal successors, (2320), 1827 states have internal predecessors, (2320), 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) [2021-12-28 03:53:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3399 transitions. [2021-12-28 03:53:35,145 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3399 transitions. Word has length 33 [2021-12-28 03:53:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:35,146 INFO L470 AbstractCegarLoop]: Abstraction has 2453 states and 3399 transitions. [2021-12-28 03:53:35,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 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) [2021-12-28 03:53:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3399 transitions. [2021-12-28 03:53:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-28 03:53:35,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:35,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:35,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:53:35,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash -580436159, now seen corresponding path program 1 times [2021-12-28 03:53:35,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:35,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433711852] [2021-12-28 03:53:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:35,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:35,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:35,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:35,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433711852] [2021-12-28 03:53:35,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433711852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:35,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:35,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:35,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097707060] [2021-12-28 03:53:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:35,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:35,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:35,348 INFO L87 Difference]: Start difference. First operand 2453 states and 3399 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) [2021-12-28 03:53:40,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:42,081 INFO L93 Difference]: Finished difference Result 8008 states and 12164 transitions. [2021-12-28 03:53:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:53:42,081 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 [2021-12-28 03:53:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:42,111 INFO L225 Difference]: With dead ends: 8008 [2021-12-28 03:53:42,112 INFO L226 Difference]: Without dead ends: 5567 [2021-12-28 03:53:42,125 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:53:42,125 INFO L933 BasicCegarLoop]: 2009 mSDtfsCounter, 2798 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 1033 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1033 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:42,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2917 Valid, 4051 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1033 Valid, 1430 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-12-28 03:53:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2021-12-28 03:53:42,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5205. [2021-12-28 03:53:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 3616 states have (on average 1.3393252212389382) internal successors, (4843), 3856 states have internal predecessors, (4843), 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) [2021-12-28 03:53:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 7602 transitions. [2021-12-28 03:53:42,349 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 7602 transitions. Word has length 33 [2021-12-28 03:53:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:42,350 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 7602 transitions. [2021-12-28 03:53:42,350 INFO L471 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) [2021-12-28 03:53:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 7602 transitions. [2021-12-28 03:53:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-28 03:53:42,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:42,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:42,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:53:42,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:42,355 INFO L85 PathProgramCache]: Analyzing trace with hash -814198283, now seen corresponding path program 1 times [2021-12-28 03:53:42,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:42,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013657809] [2021-12-28 03:53:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:42,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:42,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:42,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013657809] [2021-12-28 03:53:42,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013657809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:42,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:42,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:42,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443464309] [2021-12-28 03:53:42,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:42,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:42,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:42,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:42,537 INFO L87 Difference]: Start difference. First operand 5205 states and 7602 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) [2021-12-28 03:53:47,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:47,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:47,429 INFO L93 Difference]: Finished difference Result 5559 states and 8181 transitions. [2021-12-28 03:53:47,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:53:47,430 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 [2021-12-28 03:53:47,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:47,459 INFO L225 Difference]: With dead ends: 5559 [2021-12-28 03:53:47,459 INFO L226 Difference]: Without dead ends: 5556 [2021-12-28 03:53:47,463 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:53:47,464 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 2115 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 639 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:47,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2225 Valid, 2160 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 640 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-28 03:53:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5556 states. [2021-12-28 03:53:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5556 to 5204. [2021-12-28 03:53:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 3616 states have (on average 1.3390486725663717) internal successors, (4842), 3855 states have internal predecessors, (4842), 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) [2021-12-28 03:53:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 7600 transitions. [2021-12-28 03:53:47,713 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 7600 transitions. Word has length 34 [2021-12-28 03:53:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:47,713 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 7600 transitions. [2021-12-28 03:53:47,714 INFO L471 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) [2021-12-28 03:53:47,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 7600 transitions. [2021-12-28 03:53:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-28 03:53:47,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:47,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:47,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:53:47,715 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 529115332, now seen corresponding path program 1 times [2021-12-28 03:53:47,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771740266] [2021-12-28 03:53:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:47,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:47,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:47,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:47,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771740266] [2021-12-28 03:53:47,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771740266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:47,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:47,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:47,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416085914] [2021-12-28 03:53:47,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:47,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:47,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:47,901 INFO L87 Difference]: Start difference. First operand 5204 states and 7600 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) [2021-12-28 03:53:51,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:51,902 INFO L93 Difference]: Finished difference Result 5558 states and 8179 transitions. [2021-12-28 03:53:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:53:51,903 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 [2021-12-28 03:53:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:51,927 INFO L225 Difference]: With dead ends: 5558 [2021-12-28 03:53:51,927 INFO L226 Difference]: Without dead ends: 5555 [2021-12-28 03:53:51,930 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:53:51,930 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 2109 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 641 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:51,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2217 Valid, 2163 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 639 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-28 03:53:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5555 states. [2021-12-28 03:53:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5555 to 5203. [2021-12-28 03:53:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 3616 states have (on average 1.3387721238938053) internal successors, (4841), 3854 states have internal predecessors, (4841), 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) [2021-12-28 03:53:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 7598 transitions. [2021-12-28 03:53:52,080 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 7598 transitions. Word has length 35 [2021-12-28 03:53:52,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:52,080 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 7598 transitions. [2021-12-28 03:53:52,080 INFO L471 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) [2021-12-28 03:53:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 7598 transitions. [2021-12-28 03:53:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-28 03:53:52,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:52,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:52,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:53:52,082 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:52,082 INFO L85 PathProgramCache]: Analyzing trace with hash -777830696, now seen corresponding path program 1 times [2021-12-28 03:53:52,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:52,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486358296] [2021-12-28 03:53:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:52,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:52,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:52,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:52,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:52,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486358296] [2021-12-28 03:53:52,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486358296] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:52,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:52,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:52,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192945826] [2021-12-28 03:53:52,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:52,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:52,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:52,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:52,292 INFO L87 Difference]: Start difference. First operand 5203 states and 7598 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) [2021-12-28 03:53:55,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:56,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:56,222 INFO L93 Difference]: Finished difference Result 5557 states and 8177 transitions. [2021-12-28 03:53:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:53:56,223 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 [2021-12-28 03:53:56,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:56,257 INFO L225 Difference]: With dead ends: 5557 [2021-12-28 03:53:56,258 INFO L226 Difference]: Without dead ends: 5554 [2021-12-28 03:53:56,261 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:53:56,262 INFO L933 BasicCegarLoop]: 1589 mSDtfsCounter, 2105 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 640 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:56,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2218 Valid, 2150 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 639 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-28 03:53:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2021-12-28 03:53:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 5202. [2021-12-28 03:53:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 3616 states have (on average 1.3384955752212389) internal successors, (4840), 3853 states have internal predecessors, (4840), 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) [2021-12-28 03:53:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7596 transitions. [2021-12-28 03:53:56,468 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7596 transitions. Word has length 36 [2021-12-28 03:53:56,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:56,468 INFO L470 AbstractCegarLoop]: Abstraction has 5202 states and 7596 transitions. [2021-12-28 03:53:56,468 INFO L471 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) [2021-12-28 03:53:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7596 transitions. [2021-12-28 03:53:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-28 03:53:56,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:56,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:56,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 03:53:56,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:56,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:56,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1656520263, now seen corresponding path program 1 times [2021-12-28 03:53:56,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:56,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405640505] [2021-12-28 03:53:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:56,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:53:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:53:56,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:56,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405640505] [2021-12-28 03:53:56,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405640505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:56,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:56,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:56,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694906269] [2021-12-28 03:53:56,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:56,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:56,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:56,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:56,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:56,626 INFO L87 Difference]: Start difference. First operand 5202 states and 7596 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) [2021-12-28 03:54:00,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:54:00,847 INFO L93 Difference]: Finished difference Result 5556 states and 8175 transitions. [2021-12-28 03:54:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:54:00,847 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 [2021-12-28 03:54:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:54:00,873 INFO L225 Difference]: With dead ends: 5556 [2021-12-28 03:54:00,873 INFO L226 Difference]: Without dead ends: 5527 [2021-12-28 03:54:00,878 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:54:00,878 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 2104 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 638 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:54:00,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2217 Valid, 2148 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 636 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-12-28 03:54:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-12-28 03:54:01,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 5175. [2021-12-28 03:54:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 3599 states have (on average 1.3384273409280356) internal successors, (4817), 3834 states have internal predecessors, (4817), 1105 states have call successors, (1105), 383 states have call predecessors, (1105), 470 states have return successors, (1638), 1064 states have call predecessors, (1638), 1104 states have call successors, (1638) [2021-12-28 03:54:01,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 7560 transitions. [2021-12-28 03:54:01,065 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 7560 transitions. Word has length 37 [2021-12-28 03:54:01,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:54:01,065 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 7560 transitions. [2021-12-28 03:54:01,066 INFO L471 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) [2021-12-28 03:54:01,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 7560 transitions. [2021-12-28 03:54:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-28 03:54:01,074 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:54:01,074 INFO L514 BasicCegarLoop]: 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] [2021-12-28 03:54:01,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 03:54:01,075 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:54:01,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:54:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash 158448476, now seen corresponding path program 1 times [2021-12-28 03:54:01,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:54:01,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157846609] [2021-12-28 03:54:01,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:54:01,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:54:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:54:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:54:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:54:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 03:54:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:54:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:54:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 03:54:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 03:54:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:54:01,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:54:01,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157846609] [2021-12-28 03:54:01,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157846609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:54:01,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:54:01,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:54:01,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141537570] [2021-12-28 03:54:01,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:54:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:54:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:54:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:54:01,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:54:01,317 INFO L87 Difference]: Start difference. First operand 5175 states and 7560 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) [2021-12-28 03:54:06,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:08,365 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 [] [2021-12-28 03:54:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:54:08,807 INFO L93 Difference]: Finished difference Result 8374 states and 12311 transitions. [2021-12-28 03:54:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:54:08,808 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 [2021-12-28 03:54:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:54:08,824 INFO L225 Difference]: With dead ends: 8374 [2021-12-28 03:54:08,824 INFO L226 Difference]: Without dead ends: 3211 [2021-12-28 03:54:08,844 INFO L932 BasicCegarLoop]: 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 [2021-12-28 03:54:08,844 INFO L933 BasicCegarLoop]: 1673 mSDtfsCounter, 2036 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 1372 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1372 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:54:08,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2051 Valid, 4620 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1372 Valid, 1326 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-12-28 03:54:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2021-12-28 03:54:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 2805. [2021-12-28 03:54:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 1971 states have (on average 1.3363774733637748) internal successors, (2634), 2091 states have internal predecessors, (2634), 577 states have call successors, (577), 202 states have call predecessors, (577), 256 states have return successors, (884), 565 states have call predecessors, (884), 576 states have call successors, (884) [2021-12-28 03:54:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4095 transitions. [2021-12-28 03:54:08,953 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4095 transitions. Word has length 113 [2021-12-28 03:54:08,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:54:08,953 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 4095 transitions. [2021-12-28 03:54:08,953 INFO L471 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) [2021-12-28 03:54:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4095 transitions. [2021-12-28 03:54:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-28 03:54:08,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:54:08,962 INFO L514 BasicCegarLoop]: 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] [2021-12-28 03:54:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 03:54:08,963 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:54:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:54:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 382893013, now seen corresponding path program 1 times [2021-12-28 03:54:08,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:54:08,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278381250] [2021-12-28 03:54:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:54:08,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:54:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:54:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 03:54:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:54:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 03:54:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 03:54:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 03:54:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 03:54:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:54:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:54:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 03:54:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 03:54:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 03:54:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 03:54:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-28 03:54:09,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:54:09,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278381250] [2021-12-28 03:54:09,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278381250] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:54:09,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:54:09,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 03:54:09,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571993122] [2021-12-28 03:54:09,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:54:09,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 03:54:09,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:54:09,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 03:54:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-28 03:54:09,344 INFO L87 Difference]: Start difference. First operand 2805 states and 4095 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)