./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.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 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 03:19:33,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:19:33,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:19:34,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:19:34,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:19:34,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:19:34,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:19:34,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:19:34,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:19:34,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:19:34,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:19:34,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:19:34,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:19:34,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:19:34,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:19:34,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:19:34,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:19:34,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:19:34,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:19:34,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:19:34,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:19:34,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:19:34,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:19:34,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:19:34,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:19:34,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:19:34,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:19:34,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:19:34,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:19:34,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:19:34,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:19:34,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:19:34,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:19:34,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:19:34,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:19:34,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:19:34,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:19:34,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:19:34,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:19:34,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:19:34,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:19:34,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:19:34,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:19:34,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:19:34,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:19:34,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:19:34,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:19:34,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:19:34,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:19:34,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:19:34,148 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:19:34,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:19:34,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:19:34,150 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:19:34,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:19:34,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:19:34,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:19:34,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:19:34,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:19:34,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:19:34,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:19:34,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:19:34,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:19:34,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:19:34,154 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:19:34,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:19:34,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:19:34,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:19:34,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 [2021-11-17 03:19:34,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:19:34,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:19:34,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:19:34,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:19:34,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:19:34,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-17 03:19:34,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd024d83/b60910b973e74793a2e77270e911048a/FLAG587f6d49e [2021-11-17 03:19:35,175 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:19:35,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-17 03:19:35,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd024d83/b60910b973e74793a2e77270e911048a/FLAG587f6d49e [2021-11-17 03:19:35,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd024d83/b60910b973e74793a2e77270e911048a [2021-11-17 03:19:35,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:19:35,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:19:35,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:19:35,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:19:35,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:19:35,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:19:35" (1/1) ... [2021-11-17 03:19:35,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d165e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:35, skipping insertion in model container [2021-11-17 03:19:35,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:19:35" (1/1) ... [2021-11-17 03:19:35,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:19:35,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:19:38,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2021-11-17 03:19:38,503 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:19:38,533 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:19:38,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2021-11-17 03:19:38,883 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:19:39,068 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:19:39,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39 WrapperNode [2021-11-17 03:19:39,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:19:39,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:19:39,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:19:39,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:19:39,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,399 INFO L137 Inliner]: procedures = 565, calls = 3127, calls flagged for inlining = 257, calls inlined = 249, statements flattened = 8782 [2021-11-17 03:19:39,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:19:39,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:19:39,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:19:39,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:19:39,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:19:39,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:19:39,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:19:39,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:19:39,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (1/1) ... [2021-11-17 03:19:39,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:19:39,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:19:39,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 03:19:39,769 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-11-17 03:19:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-11-17 03:19:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_set [2021-11-17 03:19:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_set [2021-11-17 03:19:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:19:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:19:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:19:39,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:19:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure mga_pci_remove [2021-11-17 03:19:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_pci_remove [2021-11-17 03:19:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_load_lut [2021-11-17 03:19:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_load_lut [2021-11-17 03:19:39,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 03:19:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure mga_user_framebuffer_destroy [2021-11-17 03:19:39,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_user_framebuffer_destroy [2021-11-17 03:19:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2021-11-17 03:19:39,772 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2021-11-17 03:19:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-17 03:19:39,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-17 03:19:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-17 03:19:39,772 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-17 03:19:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 03:19:39,772 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 03:19:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 03:19:39,773 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 03:19:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 03:19:39,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 03:19:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 03:19:39,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 03:19:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2021-11-17 03:19:39,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2021-11-17 03:19:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_disable [2021-11-17 03:19:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_disable [2021-11-17 03:19:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2021-11-17 03:19:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2021-11-17 03:19:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-11-17 03:19:39,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-11-17 03:19:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 03:19:39,775 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 03:19:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 03:19:39,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 03:19:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unpin [2021-11-17 03:19:39,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unpin [2021-11-17 03:19:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:19:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure mga_dirty_update [2021-11-17 03:19:39,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_dirty_update [2021-11-17 03:19:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2021-11-17 03:19:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2021-11-17 03:19:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-11-17 03:19:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-11-17 03:19:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2021-11-17 03:19:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2021-11-17 03:19:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_dpms [2021-11-17 03:19:39,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_dpms [2021-11-17 03:19:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_driver_unload [2021-11-17 03:19:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_driver_unload [2021-11-17 03:19:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_tt_unpopulate [2021-11-17 03:19:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_tt_unpopulate [2021-11-17 03:19:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 03:19:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-11-17 03:19:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-11-17 03:19:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_prepare [2021-11-17 03:19:39,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_prepare [2021-11-17 03:19:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-11-17 03:19:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-11-17 03:19:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 03:19:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:19:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 03:19:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 03:19:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_apertures [2021-11-17 03:19:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_apertures [2021-11-17 03:19:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure mga_hide_cursor [2021-11-17 03:19:39,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_hide_cursor [2021-11-17 03:19:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference [2021-11-17 03:19:39,779 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference [2021-11-17 03:19:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_commit [2021-11-17 03:19:39,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_commit [2021-11-17 03:19:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:19:39,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:19:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:19:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure __devm_request_region [2021-11-17 03:19:39,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __devm_request_region [2021-11-17 03:19:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_free_object [2021-11-17 03:19:39,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_free_object [2021-11-17 03:19:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:19:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_commit [2021-11-17 03:19:39,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_commit [2021-11-17 03:19:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2021-11-17 03:19:39,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2021-11-17 03:19:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 03:19:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 03:19:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 03:19:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 03:19:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_gem_create [2021-11-17 03:19:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_gem_create [2021-11-17 03:19:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:19:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 03:19:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 03:19:39,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 03:19:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_dpms [2021-11-17 03:19:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_dpms [2021-11-17 03:19:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_calculate_mode_bandwidth [2021-11-17 03:19:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_calculate_mode_bandwidth [2021-11-17 03:19:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_destroy [2021-11-17 03:19:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_destroy [2021-11-17 03:19:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 03:19:39,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 03:19:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-17 03:19:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-17 03:19:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-11-17 03:19:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-11-17 03:19:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_pin [2021-11-17 03:19:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_pin [2021-11-17 03:19:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 03:19:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 03:19:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_placement [2021-11-17 03:19:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_placement [2021-11-17 03:19:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_cursor_move [2021-11-17 03:19:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_cursor_move [2021-11-17 03:19:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:19:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:19:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_mmap [2021-11-17 03:19:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_mmap [2021-11-17 03:19:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_unreserve [2021-11-17 03:19:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_unreserve [2021-11-17 03:19:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 03:19:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 03:19:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_push_sysram [2021-11-17 03:19:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_push_sysram [2021-11-17 03:19:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 03:19:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 03:19:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:19:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:19:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set [2021-11-17 03:19:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set [2021-11-17 03:19:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 03:19:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_gpu_offset [2021-11-17 03:19:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_gpu_offset [2021-11-17 03:19:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2021-11-17 03:19:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2021-11-17 03:19:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-17 03:19:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-17 03:19:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 03:19:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 03:19:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:19:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:19:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 03:19:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 03:19:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 03:19:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 03:19:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:19:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:19:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-11-17 03:19:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 03:19:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 03:19:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-11-17 03:19:39,788 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-17 03:19:39,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-11-17 03:19:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-11-17 03:19:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:19:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_fixup [2021-11-17 03:19:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_fixup [2021-11-17 03:19:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2021-11-17 03:19:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2021-11-17 03:19:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_ttm_backend_destroy [2021-11-17 03:19:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_ttm_backend_destroy [2021-11-17 03:19:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-11-17 03:19:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-11-17 03:19:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_create [2021-11-17 03:19:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_create [2021-11-17 03:19:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_do_set_base [2021-11-17 03:19:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_do_set_base [2021-11-17 03:19:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:19:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 03:19:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 03:19:39,790 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve___0 [2021-11-17 03:19:39,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve___0 [2021-11-17 03:19:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure mga_encoder_destroy [2021-11-17 03:19:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_encoder_destroy [2021-11-17 03:19:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_prepare [2021-11-17 03:19:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_prepare [2021-11-17 03:19:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo [2021-11-17 03:19:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo [2021-11-17 03:19:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_gamma_set [2021-11-17 03:19:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_gamma_set [2021-11-17 03:19:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure mga_connector_destroy [2021-11-17 03:19:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_connector_destroy [2021-11-17 03:19:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-17 03:19:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-17 03:19:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_19 [2021-11-17 03:19:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_19 [2021-11-17 03:19:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure remove_conflicting_framebuffers [2021-11-17 03:19:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_conflicting_framebuffers [2021-11-17 03:19:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2021-11-17 03:19:39,792 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2021-11-17 03:19:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_framebuffer_init [2021-11-17 03:19:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_framebuffer_init [2021-11-17 03:19:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 03:19:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 03:19:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:19:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 03:19:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 03:19:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-11-17 03:19:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-11-17 03:19:39,793 INFO L130 BoogieDeclarations]: Found specification of procedure mgag200_bo_reserve [2021-11-17 03:19:39,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mgag200_bo_reserve [2021-11-17 03:19:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:19:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:19:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-17 03:19:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-17 03:19:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-11-17 03:19:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-11-17 03:19:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2021-11-17 03:19:39,794 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2021-11-17 03:19:39,794 INFO L130 BoogieDeclarations]: Found specification of procedure mga_crtc_mode_set_base [2021-11-17 03:19:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_crtc_mode_set_base [2021-11-17 03:19:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure mga_vga_detect [2021-11-17 03:19:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_vga_detect [2021-11-17 03:19:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-11-17 03:19:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-11-17 03:19:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure mga_i2c_set [2021-11-17 03:19:39,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mga_i2c_set [2021-11-17 03:19:39,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:19:40,628 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:19:40,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:19:40,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:19:50,368 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:19:50,391 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:19:50,391 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 03:19:50,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:19:50 BoogieIcfgContainer [2021-11-17 03:19:50,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:19:50,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:19:50,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:19:50,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:19:50,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:19:35" (1/3) ... [2021-11-17 03:19:50,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1856439c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:19:50, skipping insertion in model container [2021-11-17 03:19:50,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:19:39" (2/3) ... [2021-11-17 03:19:50,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1856439c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:19:50, skipping insertion in model container [2021-11-17 03:19:50,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:19:50" (3/3) ... [2021-11-17 03:19:50,402 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-17 03:19:50,405 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:19:50,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:19:50,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:19:50,455 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 03:19:50,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:19:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 2995 states, 2078 states have (on average 1.343599615014437) internal successors, (2792), 2157 states have internal predecessors, (2792), 812 states have call successors, (812), 104 states have call predecessors, (812), 103 states have return successors, (795), 777 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:19:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 03:19:50,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:19:50,507 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:19:50,508 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:19:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:19:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 543121941, now seen corresponding path program 1 times [2021-11-17 03:19:50,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:19:50,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736215785] [2021-11-17 03:19:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:19:50,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:19:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:19:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:19:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:19:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:19:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:19:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:19:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:19:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:19:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:19:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:19:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:19:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:19:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:19:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:19:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:19:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:19:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:19:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:19:51,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:19:51,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736215785] [2021-11-17 03:19:51,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736215785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:19:51,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:19:51,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 03:19:51,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157425240] [2021-11-17 03:19:51,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:19:51,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 03:19:51,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:19:51,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 03:19:51,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 03:19:51,462 INFO L87 Difference]: Start difference. First operand has 2995 states, 2078 states have (on average 1.343599615014437) internal successors, (2792), 2157 states have internal predecessors, (2792), 812 states have call successors, (812), 104 states have call predecessors, (812), 103 states have return successors, (795), 777 states have call predecessors, (795), 795 states have call successors, (795) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:19:57,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:20:05,625 INFO L93 Difference]: Finished difference Result 6205 states and 9341 transitions. [2021-11-17 03:20:05,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 03:20:05,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 250 [2021-11-17 03:20:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:20:05,651 INFO L225 Difference]: With dead ends: 6205 [2021-11-17 03:20:05,651 INFO L226 Difference]: Without dead ends: 3179 [2021-11-17 03:20:05,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:20:05,668 INFO L933 BasicCegarLoop]: 4033 mSDtfsCounter, 1791 mSDsluCounter, 5043 mSDsCounter, 0 mSdLazyCounter, 3363 mSolverCounterSat, 2138 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 9076 SdHoareTripleChecker+Invalid, 5502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2138 IncrementalHoareTripleChecker+Valid, 3363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:20:05,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1840 Valid, 9076 Invalid, 5502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2138 Valid, 3363 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2021-11-17 03:20:05,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2021-11-17 03:20:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2961. [2021-11-17 03:20:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2063 states have (on average 1.3310712554532234) internal successors, (2746), 2123 states have internal predecessors, (2746), 795 states have call successors, (795), 103 states have call predecessors, (795), 102 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2021-11-17 03:20:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 4324 transitions. [2021-11-17 03:20:05,881 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 4324 transitions. Word has length 250 [2021-11-17 03:20:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:20:05,882 INFO L470 AbstractCegarLoop]: Abstraction has 2961 states and 4324 transitions. [2021-11-17 03:20:05,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:20:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 4324 transitions. [2021-11-17 03:20:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-17 03:20:05,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:20:05,891 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:20:05,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:20:05,893 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:20:05,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:20:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash 365621927, now seen corresponding path program 1 times [2021-11-17 03:20:05,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:20:05,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722055247] [2021-11-17 03:20:05,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:20:05,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:20:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:20:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:20:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:20:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:20:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:20:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:20:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:20:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:20:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:20:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:20:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:20:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:20:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:20:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:20:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:20:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:20:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:20:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:20:06,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:20:06,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722055247] [2021-11-17 03:20:06,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722055247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:20:06,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:20:06,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:20:06,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157308172] [2021-11-17 03:20:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:20:06,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:20:06,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:20:06,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:20:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:20:06,603 INFO L87 Difference]: Start difference. First operand 2961 states and 4324 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 03:20:12,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:20,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:20:27,858 INFO L93 Difference]: Finished difference Result 8534 states and 12568 transitions. [2021-11-17 03:20:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:20:27,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 250 [2021-11-17 03:20:27,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:20:27,883 INFO L225 Difference]: With dead ends: 8534 [2021-11-17 03:20:27,884 INFO L226 Difference]: Without dead ends: 5610 [2021-11-17 03:20:27,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:20:27,894 INFO L933 BasicCegarLoop]: 4255 mSDtfsCounter, 6156 mSDsluCounter, 6799 mSDsCounter, 0 mSdLazyCounter, 4503 mSolverCounterSat, 4274 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6449 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 8779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4274 IncrementalHoareTripleChecker+Valid, 4503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:20:27,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6449 Valid, 11054 Invalid, 8779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4274 Valid, 4503 Invalid, 2 Unknown, 0 Unchecked, 20.5s Time] [2021-11-17 03:20:27,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2021-11-17 03:20:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5166. [2021-11-17 03:20:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 3659 states have (on average 1.3424432905165347) internal successors, (4912), 3766 states have internal predecessors, (4912), 1305 states have call successors, (1305), 202 states have call predecessors, (1305), 201 states have return successors, (1293), 1257 states have call predecessors, (1293), 1293 states have call successors, (1293) [2021-11-17 03:20:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 7510 transitions. [2021-11-17 03:20:28,140 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 7510 transitions. Word has length 250 [2021-11-17 03:20:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:20:28,142 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 7510 transitions. [2021-11-17 03:20:28,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 03:20:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 7510 transitions. [2021-11-17 03:20:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 03:20:28,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:20:28,150 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:20:28,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:20:28,150 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:20:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:20:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash 271586525, now seen corresponding path program 1 times [2021-11-17 03:20:28,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:20:28,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575844705] [2021-11-17 03:20:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:20:28,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:20:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:20:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:20:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:20:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:20:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:20:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:20:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:20:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:20:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:20:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:20:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:20:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:20:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:20:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:20:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:20:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:20:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:20:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:20:28,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:20:28,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575844705] [2021-11-17 03:20:28,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575844705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:20:28,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:20:28,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:20:28,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979397856] [2021-11-17 03:20:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:20:28,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:20:28,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:20:28,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:20:28,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:20:28,798 INFO L87 Difference]: Start difference. First operand 5166 states and 7510 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 03:20:32,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:44,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:20:44,368 INFO L93 Difference]: Finished difference Result 15001 states and 22020 transitions. [2021-11-17 03:20:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:20:44,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 253 [2021-11-17 03:20:44,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:20:44,411 INFO L225 Difference]: With dead ends: 15001 [2021-11-17 03:20:44,411 INFO L226 Difference]: Without dead ends: 9872 [2021-11-17 03:20:44,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:20:44,430 INFO L933 BasicCegarLoop]: 4191 mSDtfsCounter, 7719 mSDsluCounter, 5227 mSDsCounter, 0 mSdLazyCounter, 3113 mSolverCounterSat, 6050 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7951 SdHoareTripleChecker+Valid, 9418 SdHoareTripleChecker+Invalid, 9164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6050 IncrementalHoareTripleChecker+Valid, 3113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:20:44,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7951 Valid, 9418 Invalid, 9164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6050 Valid, 3113 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time] [2021-11-17 03:20:44,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9872 states. [2021-11-17 03:20:44,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9872 to 9023. [2021-11-17 03:20:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9023 states, 6418 states have (on average 1.3483951386724837) internal successors, (8654), 6618 states have internal predecessors, (8654), 2221 states have call successors, (2221), 384 states have call predecessors, (2221), 383 states have return successors, (2209), 2136 states have call predecessors, (2209), 2209 states have call successors, (2209) [2021-11-17 03:20:44,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9023 states to 9023 states and 13084 transitions. [2021-11-17 03:20:44,859 INFO L78 Accepts]: Start accepts. Automaton has 9023 states and 13084 transitions. Word has length 253 [2021-11-17 03:20:44,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:20:44,861 INFO L470 AbstractCegarLoop]: Abstraction has 9023 states and 13084 transitions. [2021-11-17 03:20:44,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-17 03:20:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9023 states and 13084 transitions. [2021-11-17 03:20:44,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-11-17 03:20:44,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:20:44,864 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:20:44,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 03:20:44,865 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:20:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:20:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash -218049962, now seen corresponding path program 1 times [2021-11-17 03:20:44,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:20:44,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419920641] [2021-11-17 03:20:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:20:44,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:20:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:20:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:20:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:20:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:20:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:20:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:20:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:20:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:20:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:20:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:20:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:20:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:20:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:20:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:20:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:20:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:20:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:20:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:20:45,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:20:45,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419920641] [2021-11-17 03:20:45,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419920641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:20:45,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:20:45,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:20:45,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180403037] [2021-11-17 03:20:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:20:45,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:20:45,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:20:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:20:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:20:45,483 INFO L87 Difference]: Start difference. First operand 9023 states and 13084 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:20:49,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:21:02,084 INFO L93 Difference]: Finished difference Result 18982 states and 28342 transitions. [2021-11-17 03:21:02,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:21:02,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 254 [2021-11-17 03:21:02,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:21:02,167 INFO L225 Difference]: With dead ends: 18982 [2021-11-17 03:21:02,168 INFO L226 Difference]: Without dead ends: 18976 [2021-11-17 03:21:02,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:21:02,180 INFO L933 BasicCegarLoop]: 4336 mSDtfsCounter, 8207 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 3190 mSolverCounterSat, 6346 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8486 SdHoareTripleChecker+Valid, 9592 SdHoareTripleChecker+Invalid, 9537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6346 IncrementalHoareTripleChecker+Valid, 3190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-11-17 03:21:02,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8486 Valid, 9592 Invalid, 9537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6346 Valid, 3190 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2021-11-17 03:21:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18976 states. [2021-11-17 03:21:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18976 to 17355. [2021-11-17 03:21:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17355 states, 12431 states have (on average 1.3504947309146489) internal successors, (16788), 12822 states have internal predecessors, (16788), 4158 states have call successors, (4158), 761 states have call predecessors, (4158), 765 states have return successors, (4367), 4009 states have call predecessors, (4367), 4146 states have call successors, (4367) [2021-11-17 03:21:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17355 states to 17355 states and 25313 transitions. [2021-11-17 03:21:02,934 INFO L78 Accepts]: Start accepts. Automaton has 17355 states and 25313 transitions. Word has length 254 [2021-11-17 03:21:02,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:21:02,937 INFO L470 AbstractCegarLoop]: Abstraction has 17355 states and 25313 transitions. [2021-11-17 03:21:02,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 17355 states and 25313 transitions. [2021-11-17 03:21:02,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-17 03:21:02,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:21:02,940 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:21:02,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 03:21:02,940 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:21:02,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:21:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1829027548, now seen corresponding path program 1 times [2021-11-17 03:21:02,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:21:02,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169804636] [2021-11-17 03:21:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:21:02,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:21:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:21:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:21:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:21:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:21:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:21:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:21:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:21:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:21:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:21:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:21:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:21:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:21:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:21:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:21:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:21:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:21:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:21:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:21:03,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:21:03,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169804636] [2021-11-17 03:21:03,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169804636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:21:03,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:21:03,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:21:03,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789227156] [2021-11-17 03:21:03,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:21:03,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:21:03,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:21:03,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:21:03,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:21:03,634 INFO L87 Difference]: Start difference. First operand 17355 states and 25313 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:08,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:17,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:21:23,431 INFO L93 Difference]: Finished difference Result 19475 states and 28938 transitions. [2021-11-17 03:21:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:21:23,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 255 [2021-11-17 03:21:23,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:21:23,500 INFO L225 Difference]: With dead ends: 19475 [2021-11-17 03:21:23,500 INFO L226 Difference]: Without dead ends: 19472 [2021-11-17 03:21:23,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:21:23,514 INFO L933 BasicCegarLoop]: 3938 mSDtfsCounter, 4830 mSDsluCounter, 6088 mSDsCounter, 0 mSdLazyCounter, 3601 mSolverCounterSat, 2887 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 10026 SdHoareTripleChecker+Invalid, 6490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2887 IncrementalHoareTripleChecker+Valid, 3601 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:21:23,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5069 Valid, 10026 Invalid, 6490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2887 Valid, 3601 Invalid, 2 Unknown, 0 Unchecked, 19.1s Time] [2021-11-17 03:21:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19472 states. [2021-11-17 03:21:24,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19472 to 17837. [2021-11-17 03:21:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17837 states, 12768 states have (on average 1.3475877192982457) internal successors, (17206), 13169 states have internal predecessors, (17206), 4251 states have call successors, (4251), 813 states have call predecessors, (4251), 817 states have return successors, (4468), 4103 states have call predecessors, (4468), 4240 states have call successors, (4468) [2021-11-17 03:21:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17837 states to 17837 states and 25925 transitions. [2021-11-17 03:21:24,202 INFO L78 Accepts]: Start accepts. Automaton has 17837 states and 25925 transitions. Word has length 255 [2021-11-17 03:21:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:21:24,202 INFO L470 AbstractCegarLoop]: Abstraction has 17837 states and 25925 transitions. [2021-11-17 03:21:24,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 17837 states and 25925 transitions. [2021-11-17 03:21:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-17 03:21:24,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:21:24,206 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:21:24,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 03:21:24,206 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:21:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:21:24,207 INFO L85 PathProgramCache]: Analyzing trace with hash 863925785, now seen corresponding path program 1 times [2021-11-17 03:21:24,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:21:24,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444655417] [2021-11-17 03:21:24,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:21:24,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:21:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:21:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:21:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:21:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:21:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:21:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:21:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:21:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:21:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:21:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:21:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:21:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:21:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:21:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:21:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:21:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:21:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:21:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:21:25,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:21:25,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444655417] [2021-11-17 03:21:25,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444655417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:21:25,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:21:25,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:21:25,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523985197] [2021-11-17 03:21:25,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:21:25,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:21:25,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:21:25,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:21:25,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:21:25,271 INFO L87 Difference]: Start difference. First operand 17837 states and 25925 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:29,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:33,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 03:21:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:21:43,134 INFO L93 Difference]: Finished difference Result 19858 states and 29356 transitions. [2021-11-17 03:21:43,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:21:43,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 256 [2021-11-17 03:21:43,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:21:43,196 INFO L225 Difference]: With dead ends: 19858 [2021-11-17 03:21:43,196 INFO L226 Difference]: Without dead ends: 19855 [2021-11-17 03:21:43,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:21:43,207 INFO L933 BasicCegarLoop]: 3981 mSDtfsCounter, 4814 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 2890 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 8521 SdHoareTripleChecker+Invalid, 5646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2890 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:21:43,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5060 Valid, 8521 Invalid, 5646 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2890 Valid, 2754 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2021-11-17 03:21:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19855 states. [2021-11-17 03:21:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19855 to 18128. [2021-11-17 03:21:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18128 states, 12988 states have (on average 1.34562673236834) internal successors, (17477), 13388 states have internal predecessors, (17477), 4278 states have call successors, (4278), 857 states have call predecessors, (4278), 861 states have return successors, (4496), 4131 states have call predecessors, (4496), 4268 states have call successors, (4496) [2021-11-17 03:21:43,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18128 states to 18128 states and 26251 transitions. [2021-11-17 03:21:43,951 INFO L78 Accepts]: Start accepts. Automaton has 18128 states and 26251 transitions. Word has length 256 [2021-11-17 03:21:43,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:21:43,952 INFO L470 AbstractCegarLoop]: Abstraction has 18128 states and 26251 transitions. [2021-11-17 03:21:43,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:43,952 INFO L276 IsEmpty]: Start isEmpty. Operand 18128 states and 26251 transitions. [2021-11-17 03:21:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-17 03:21:43,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:21:43,955 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:21:43,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 03:21:43,956 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:21:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:21:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1010547071, now seen corresponding path program 1 times [2021-11-17 03:21:43,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:21:43,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618697561] [2021-11-17 03:21:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:21:43,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:21:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:21:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:21:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:21:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:21:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:21:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:21:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:21:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:21:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:21:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:21:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:21:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:21:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:21:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:21:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:21:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:21:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:21:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:21:44,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:21:44,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618697561] [2021-11-17 03:21:44,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618697561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:21:44,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:21:44,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:21:44,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264524057] [2021-11-17 03:21:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:21:44,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:21:44,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:21:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:21:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:21:44,672 INFO L87 Difference]: Start difference. First operand 18128 states and 26251 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:21:50,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:22:05,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:22:05,608 INFO L93 Difference]: Finished difference Result 19857 states and 29354 transitions. [2021-11-17 03:22:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:22:05,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 257 [2021-11-17 03:22:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:22:05,666 INFO L225 Difference]: With dead ends: 19857 [2021-11-17 03:22:05,666 INFO L226 Difference]: Without dead ends: 19854 [2021-11-17 03:22:05,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:22:05,676 INFO L933 BasicCegarLoop]: 3960 mSDtfsCounter, 4797 mSDsluCounter, 6088 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 2873 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 10048 SdHoareTripleChecker+Invalid, 6484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:22:05,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5040 Valid, 10048 Invalid, 6484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2873 Valid, 3610 Invalid, 1 Unknown, 0 Unchecked, 20.1s Time] [2021-11-17 03:22:05,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19854 states. [2021-11-17 03:22:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19854 to 18127. [2021-11-17 03:22:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18127 states, 12988 states have (on average 1.3455497382198953) internal successors, (17476), 13387 states have internal predecessors, (17476), 4277 states have call successors, (4277), 857 states have call predecessors, (4277), 861 states have return successors, (4496), 4131 states have call predecessors, (4496), 4268 states have call successors, (4496) [2021-11-17 03:22:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18127 states to 18127 states and 26249 transitions. [2021-11-17 03:22:06,321 INFO L78 Accepts]: Start accepts. Automaton has 18127 states and 26249 transitions. Word has length 257 [2021-11-17 03:22:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:22:06,322 INFO L470 AbstractCegarLoop]: Abstraction has 18127 states and 26249 transitions. [2021-11-17 03:22:06,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:22:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18127 states and 26249 transitions. [2021-11-17 03:22:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-17 03:22:06,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:22:06,324 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:22:06,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 03:22:06,325 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:22:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:22:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1260844508, now seen corresponding path program 1 times [2021-11-17 03:22:06,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:22:06,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058771517] [2021-11-17 03:22:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:22:06,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:22:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:22:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:22:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:22:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:22:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:22:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:22:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:22:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:22:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:22:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:22:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:22:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:22:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:22:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:22:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:22:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:22:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:22:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:22:06,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:22:06,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058771517] [2021-11-17 03:22:06,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058771517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:22:06,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:22:06,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:22:06,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141247635] [2021-11-17 03:22:06,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:22:06,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:22:06,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:22:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:22:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:22:06,999 INFO L87 Difference]: Start difference. First operand 18127 states and 26249 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:22:11,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:22:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:22:23,371 INFO L93 Difference]: Finished difference Result 19856 states and 29352 transitions. [2021-11-17 03:22:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:22:23,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 258 [2021-11-17 03:22:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:22:23,439 INFO L225 Difference]: With dead ends: 19856 [2021-11-17 03:22:23,439 INFO L226 Difference]: Without dead ends: 19853 [2021-11-17 03:22:23,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:22:23,452 INFO L933 BasicCegarLoop]: 3961 mSDtfsCounter, 4794 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 2717 mSolverCounterSat, 2882 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 8461 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2882 IncrementalHoareTripleChecker+Valid, 2717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:22:23,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5034 Valid, 8461 Invalid, 5600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2882 Valid, 2717 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2021-11-17 03:22:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19853 states. [2021-11-17 03:22:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19853 to 18126. [2021-11-17 03:22:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18126 states, 12988 states have (on average 1.3454727440714507) internal successors, (17475), 13386 states have internal predecessors, (17475), 4276 states have call successors, (4276), 857 states have call predecessors, (4276), 861 states have return successors, (4496), 4131 states have call predecessors, (4496), 4268 states have call successors, (4496) [2021-11-17 03:22:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18126 states to 18126 states and 26247 transitions. [2021-11-17 03:22:24,127 INFO L78 Accepts]: Start accepts. Automaton has 18126 states and 26247 transitions. Word has length 258 [2021-11-17 03:22:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:22:24,128 INFO L470 AbstractCegarLoop]: Abstraction has 18126 states and 26247 transitions. [2021-11-17 03:22:24,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:22:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 18126 states and 26247 transitions. [2021-11-17 03:22:24,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-17 03:22:24,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:22:24,131 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:22:24,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 03:22:24,135 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:22:24,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:22:24,136 INFO L85 PathProgramCache]: Analyzing trace with hash 430135330, now seen corresponding path program 1 times [2021-11-17 03:22:24,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:22:24,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095193255] [2021-11-17 03:22:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:22:24,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:22:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:22:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:22:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:22:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:22:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:22:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:22:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:22:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:22:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:22:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:22:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:22:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:22:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:22:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:22:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:22:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:22:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:22:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:22:24,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:22:24,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095193255] [2021-11-17 03:22:24,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095193255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:22:24,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:22:24,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:22:24,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170092783] [2021-11-17 03:22:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:22:24,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:22:24,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:22:24,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:22:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:22:24,783 INFO L87 Difference]: Start difference. First operand 18126 states and 26247 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:22:31,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:22:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:22:54,853 INFO L93 Difference]: Finished difference Result 54266 states and 79698 transitions. [2021-11-17 03:22:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:22:54,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 259 [2021-11-17 03:22:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:22:55,013 INFO L225 Difference]: With dead ends: 54266 [2021-11-17 03:22:55,013 INFO L226 Difference]: Without dead ends: 36177 [2021-11-17 03:22:55,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:22:55,090 INFO L933 BasicCegarLoop]: 4537 mSDtfsCounter, 5882 mSDsluCounter, 8841 mSDsCounter, 0 mSdLazyCounter, 5538 mSolverCounterSat, 3947 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6134 SdHoareTripleChecker+Valid, 13378 SdHoareTripleChecker+Invalid, 9486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3947 IncrementalHoareTripleChecker+Valid, 5538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:22:55,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6134 Valid, 13378 Invalid, 9486 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3947 Valid, 5538 Invalid, 1 Unknown, 0 Unchecked, 28.5s Time] [2021-11-17 03:22:55,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36177 states. [2021-11-17 03:22:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36177 to 33506. [2021-11-17 03:22:56,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33506 states, 24194 states have (on average 1.3464495329420518) internal successors, (32576), 24821 states have internal predecessors, (32576), 7710 states have call successors, (7710), 1602 states have call predecessors, (7710), 1601 states have return successors, (8264), 7507 states have call predecessors, (8264), 7700 states have call successors, (8264) [2021-11-17 03:22:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33506 states to 33506 states and 48550 transitions. [2021-11-17 03:22:56,523 INFO L78 Accepts]: Start accepts. Automaton has 33506 states and 48550 transitions. Word has length 259 [2021-11-17 03:22:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:22:56,524 INFO L470 AbstractCegarLoop]: Abstraction has 33506 states and 48550 transitions. [2021-11-17 03:22:56,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:22:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 33506 states and 48550 transitions. [2021-11-17 03:22:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-17 03:22:56,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:22:56,529 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:22:56,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 03:22:56,530 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:22:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:22:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash 447959455, now seen corresponding path program 1 times [2021-11-17 03:22:56,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:22:56,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924069450] [2021-11-17 03:22:56,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:22:56,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:22:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:22:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:22:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:22:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:22:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:22:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:22:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:22:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:22:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:22:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:22:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:22:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:22:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:22:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:22:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:22:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:22:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:22:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:22:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:22:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:22:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 03:22:57,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:22:57,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924069450] [2021-11-17 03:22:57,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924069450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:22:57,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:22:57,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:22:57,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980644593] [2021-11-17 03:22:57,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:22:57,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:22:57,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:22:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:22:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:22:57,076 INFO L87 Difference]: Start difference. First operand 33506 states and 48550 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:23:02,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:23:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:23:18,455 INFO L93 Difference]: Finished difference Result 36125 states and 53351 transitions. [2021-11-17 03:23:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:23:18,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 260 [2021-11-17 03:23:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:23:18,585 INFO L225 Difference]: With dead ends: 36125 [2021-11-17 03:23:18,585 INFO L226 Difference]: Without dead ends: 36112 [2021-11-17 03:23:18,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:23:18,606 INFO L933 BasicCegarLoop]: 3944 mSDtfsCounter, 4798 mSDsluCounter, 6084 mSDsCounter, 0 mSdLazyCounter, 3601 mSolverCounterSat, 2889 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5040 SdHoareTripleChecker+Valid, 10028 SdHoareTripleChecker+Invalid, 6491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2889 IncrementalHoareTripleChecker+Valid, 3601 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:23:18,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5040 Valid, 10028 Invalid, 6491 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2889 Valid, 3601 Invalid, 1 Unknown, 0 Unchecked, 20.1s Time] [2021-11-17 03:23:18,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36112 states. [2021-11-17 03:23:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36112 to 33495. [2021-11-17 03:23:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33495 states, 24184 states have (on average 1.3463033410519352) internal successors, (32559), 24810 states have internal predecessors, (32559), 7709 states have call successors, (7709), 1602 states have call predecessors, (7709), 1601 states have return successors, (8264), 7507 states have call predecessors, (8264), 7700 states have call successors, (8264) [2021-11-17 03:23:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33495 states to 33495 states and 48532 transitions. [2021-11-17 03:23:19,949 INFO L78 Accepts]: Start accepts. Automaton has 33495 states and 48532 transitions. Word has length 260 [2021-11-17 03:23:19,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:23:19,950 INFO L470 AbstractCegarLoop]: Abstraction has 33495 states and 48532 transitions. [2021-11-17 03:23:19,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 03:23:19,950 INFO L276 IsEmpty]: Start isEmpty. Operand 33495 states and 48532 transitions. [2021-11-17 03:23:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-17 03:23:19,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:23:19,954 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:23:19,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 03:23:19,954 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:23:19,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:23:19,955 INFO L85 PathProgramCache]: Analyzing trace with hash 915479562, now seen corresponding path program 1 times [2021-11-17 03:23:19,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:23:19,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936127409] [2021-11-17 03:23:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:23:19,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:23:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:23:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:23:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:23:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:23:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:23:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:23:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:23:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:23:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:23:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:23:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:23:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:23:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:23:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:23:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:23:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:23:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:23:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:23:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:23:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:23:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:23:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:23:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:23:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2021-11-17 03:23:20,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:23:20,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936127409] [2021-11-17 03:23:20,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936127409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:23:20,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:23:20,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:23:20,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603066475] [2021-11-17 03:23:20,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:23:20,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:23:20,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:23:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:23:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:23:20,633 INFO L87 Difference]: Start difference. First operand 33495 states and 48532 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:23:22,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:23:27,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:24:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:24:07,318 INFO L93 Difference]: Finished difference Result 104833 states and 154054 transitions. [2021-11-17 03:24:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 03:24:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 295 [2021-11-17 03:24:07,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:24:07,605 INFO L225 Difference]: With dead ends: 104833 [2021-11-17 03:24:07,605 INFO L226 Difference]: Without dead ends: 71375 [2021-11-17 03:24:07,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 03:24:07,709 INFO L933 BasicCegarLoop]: 4351 mSDtfsCounter, 8417 mSDsluCounter, 8157 mSDsCounter, 0 mSdLazyCounter, 9354 mSolverCounterSat, 6276 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9062 SdHoareTripleChecker+Valid, 12508 SdHoareTripleChecker+Invalid, 15631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6276 IncrementalHoareTripleChecker+Valid, 9354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:24:07,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9062 Valid, 12508 Invalid, 15631 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6276 Valid, 9354 Invalid, 1 Unknown, 0 Unchecked, 43.4s Time] [2021-11-17 03:24:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71375 states. [2021-11-17 03:24:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71375 to 65863. [2021-11-17 03:24:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65863 states, 47580 states have (on average 1.3466792770071458) internal successors, (64075), 48858 states have internal predecessors, (64075), 15073 states have call successors, (15073), 3138 states have call predecessors, (15073), 3209 states have return successors, (16352), 14695 states have call predecessors, (16352), 15064 states have call successors, (16352) [2021-11-17 03:24:10,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65863 states to 65863 states and 95500 transitions. [2021-11-17 03:24:10,514 INFO L78 Accepts]: Start accepts. Automaton has 65863 states and 95500 transitions. Word has length 295 [2021-11-17 03:24:10,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:24:10,515 INFO L470 AbstractCegarLoop]: Abstraction has 65863 states and 95500 transitions. [2021-11-17 03:24:10,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:24:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 65863 states and 95500 transitions. [2021-11-17 03:24:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-11-17 03:24:10,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:24:10,519 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:24:10,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 03:24:10,520 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:24:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:24:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash 304164159, now seen corresponding path program 1 times [2021-11-17 03:24:10,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:24:10,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204417716] [2021-11-17 03:24:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:24:10,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:24:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:24:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:24:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:24:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:24:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:24:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:24:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:24:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:24:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:24:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:24:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:24:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:24:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:24:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:24:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:24:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:24:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:24:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:24:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 03:24:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 03:24:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:24:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 03:24:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 03:24:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 03:24:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:24:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:24:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:24:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2021-11-17 03:24:11,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:24:11,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204417716] [2021-11-17 03:24:11,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204417716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:24:11,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:24:11,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:24:11,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700818448] [2021-11-17 03:24:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:24:11,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:24:11,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:24:11,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:24:11,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:24:11,158 INFO L87 Difference]: Start difference. First operand 65863 states and 95500 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:24:13,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:24:18,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:24:45,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-17 03:24:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:24:57,044 INFO L93 Difference]: Finished difference Result 206757 states and 303794 transitions. [2021-11-17 03:24:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 03:24:57,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 349 [2021-11-17 03:24:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:24:57,860 INFO L225 Difference]: With dead ends: 206757 [2021-11-17 03:24:57,860 INFO L226 Difference]: Without dead ends: 140931 [2021-11-17 03:24:58,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 03:24:58,085 INFO L933 BasicCegarLoop]: 4282 mSDtfsCounter, 10728 mSDsluCounter, 7060 mSDsCounter, 0 mSdLazyCounter, 7483 mSolverCounterSat, 8370 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11340 SdHoareTripleChecker+Valid, 11342 SdHoareTripleChecker+Invalid, 15855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8370 IncrementalHoareTripleChecker+Valid, 7483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:24:58,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11340 Valid, 11342 Invalid, 15855 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8370 Valid, 7483 Invalid, 2 Unknown, 0 Unchecked, 40.4s Time] [2021-11-17 03:24:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140931 states. [2021-11-17 03:25:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140931 to 129067. [2021-11-17 03:25:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129067 states, 93472 states have (on average 1.3487140534063677) internal successors, (126067), 96010 states have internal predecessors, (126067), 29289 states have call successors, (29289), 6162 states have call predecessors, (29289), 6305 states have return successors, (31716), 28543 states have call predecessors, (31716), 29280 states have call successors, (31716) [2021-11-17 03:25:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129067 states to 129067 states and 187072 transitions. [2021-11-17 03:25:03,997 INFO L78 Accepts]: Start accepts. Automaton has 129067 states and 187072 transitions. Word has length 349 [2021-11-17 03:25:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:25:03,997 INFO L470 AbstractCegarLoop]: Abstraction has 129067 states and 187072 transitions. [2021-11-17 03:25:03,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:25:03,998 INFO L276 IsEmpty]: Start isEmpty. Operand 129067 states and 187072 transitions. [2021-11-17 03:25:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-17 03:25:04,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:25:04,006 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:25:04,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 03:25:04,006 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:25:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:25:04,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1976303200, now seen corresponding path program 1 times [2021-11-17 03:25:04,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:25:04,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292095463] [2021-11-17 03:25:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:25:04,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:25:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:25:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:25:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:25:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:25:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:25:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:25:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:25:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:25:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:25:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:25:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:25:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:25:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:25:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:25:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:25:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:25:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:25:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 03:25:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 03:25:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 03:25:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 03:25:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:25:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 03:25:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:25:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-17 03:25:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:25:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 03:25:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:25:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 03:25:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 03:25:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-17 03:25:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:25:04,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1425 trivial. 0 not checked. [2021-11-17 03:25:04,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:25:04,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292095463] [2021-11-17 03:25:04,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292095463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:25:04,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:25:04,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:25:04,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897687462] [2021-11-17 03:25:04,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:25:04,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:25:04,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:25:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:25:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:25:04,773 INFO L87 Difference]: Start difference. First operand 129067 states and 187072 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 03:25:06,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:25:10,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:26:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:26:01,384 INFO L93 Difference]: Finished difference Result 426757 states and 633097 transitions. [2021-11-17 03:26:01,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 03:26:01,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 409 [2021-11-17 03:26:01,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:26:03,302 INFO L225 Difference]: With dead ends: 426757 [2021-11-17 03:26:03,302 INFO L226 Difference]: Without dead ends: 297727 [2021-11-17 03:26:03,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 03:26:03,843 INFO L933 BasicCegarLoop]: 4860 mSDtfsCounter, 8230 mSDsluCounter, 11494 mSDsCounter, 0 mSdLazyCounter, 8824 mSolverCounterSat, 6483 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8726 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 15308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6483 IncrementalHoareTripleChecker+Valid, 8824 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2021-11-17 03:26:03,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8726 Valid, 16354 Invalid, 15308 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6483 Valid, 8824 Invalid, 1 Unknown, 0 Unchecked, 44.2s Time] [2021-11-17 03:26:04,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297727 states. [2021-11-17 03:26:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297727 to 257302. [2021-11-17 03:26:15,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257302 states, 184760 states have (on average 1.3422548170599697) internal successors, (247995), 190080 states have internal predecessors, (247995), 59763 states have call successors, (59763), 12042 states have call predecessors, (59763), 12778 states have return successors, (65772), 58593 states have call predecessors, (65772), 59754 states have call successors, (65772)