./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--block--rsxx--rsxx.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--block--rsxx--rsxx.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 66bf0b457d4d5112c0b99aeef3b038fb34481370a385df3d77d1a982d2cba2ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 03:12:55,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:12:55,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:12:55,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:12:55,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:12:55,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:12:55,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:12:55,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:12:55,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:12:55,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:12:55,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:12:55,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:12:55,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:12:55,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:12:55,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:12:55,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:12:55,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:12:55,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:12:55,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:12:55,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:12:55,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:12:55,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:12:55,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:12:55,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:12:55,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:12:55,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:12:55,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:12:55,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:12:55,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:12:55,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:12:55,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:12:55,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:12:55,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:12:55,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:12:55,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:12:55,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:12:55,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:12:55,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:12:55,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:12:55,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:12:55,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:12:55,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:12:55,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:12:55,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:12:55,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:12:55,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:12:55,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:12:55,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:12:55,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:12:55,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:12:55,512 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:12:55,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:12:55,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:12:55,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:12:55,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:12:55,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:12:55,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:12:55,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:12:55,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:12:55,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:12:55,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:12:55,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:12:55,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66bf0b457d4d5112c0b99aeef3b038fb34481370a385df3d77d1a982d2cba2ad [2021-11-17 03:12:55,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:12:55,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:12:55,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:12:55,711 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:12:55,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:12:55,727 INFO L432 ainManager$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--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-17 03:12:55,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0c90e16/7d3f7281ee084937a668c5053d9587d5/FLAG8d6f55479 [2021-11-17 03:12:56,388 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:12:56,389 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--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-17 03:12:56,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0c90e16/7d3f7281ee084937a668c5053d9587d5/FLAG8d6f55479 [2021-11-17 03:12:56,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e0c90e16/7d3f7281ee084937a668c5053d9587d5 [2021-11-17 03:12:56,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:12:56,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:12:56,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:12:56,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:12:56,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:12:56,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:12:56" (1/1) ... [2021-11-17 03:12:56,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611ff888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:56, skipping insertion in model container [2021-11-17 03:12:56,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:12:56" (1/1) ... [2021-11-17 03:12:56,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:12:56,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:12:58,626 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--block--rsxx--rsxx.ko-entry_point.cil.out.i[348806,348819] [2021-11-17 03:12:58,781 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:12:58,812 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:12:59,118 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--block--rsxx--rsxx.ko-entry_point.cil.out.i[348806,348819] [2021-11-17 03:12:59,128 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:12:59,235 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:12:59,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59 WrapperNode [2021-11-17 03:12:59,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:12:59,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:12:59,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:12:59,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:12:59,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,466 INFO L137 Inliner]: procedures = 566, calls = 3591, calls flagged for inlining = 221, calls inlined = 180, statements flattened = 6306 [2021-11-17 03:12:59,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:12:59,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:12:59,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:12:59,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:12:59,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:12:59,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:12:59,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:12:59,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:12:59,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (1/1) ... [2021-11-17 03:12:59,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:12:59,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:12:59,753 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 03:12:59,773 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 03:12:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 03:12:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 03:12:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-17 03:12:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-17 03:12:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 03:12:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 03:12:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-11-17 03:12:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-11-17 03:12:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:12:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:12:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure __disable_intr [2021-11-17 03:12:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __disable_intr [2021-11-17 03:12:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_hw_buffers_init [2021-11-17 03:12:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_hw_buffers_init [2021-11-17 03:12:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-17 03:12:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-17 03:12:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure config_data_crc32 [2021-11-17 03:12:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure config_data_crc32 [2021-11-17 03:12:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:12:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:12:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_configure [2021-11-17 03:12:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_configure [2021-11-17 03:12:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 03:12:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 03:12:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure creg_queue_cmd [2021-11-17 03:12:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_queue_cmd [2021-11-17 03:12:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_cleanup_dma_queue [2021-11-17 03:12:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_cleanup_dma_queue [2021-11-17 03:12:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_free_dma [2021-11-17 03:12:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_free_dma [2021-11-17 03:12:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-17 03:12:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-17 03:12:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 03:12:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 03:12:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-11-17 03:12:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-11-17 03:12:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_cancel [2021-11-17 03:12:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_cancel [2021-11-17 03:12:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 03:12:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 03:12:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dev_cleanup [2021-11-17 03:12:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dev_cleanup [2021-11-17 03:12:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_get_card_state [2021-11-17 03:12:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_get_card_state [2021-11-17 03:12:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 03:12:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 03:12:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-17 03:12:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-17 03:12:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_cram_write [2021-11-17 03:12:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_cram_write [2021-11-17 03:12:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 03:12:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 03:12:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 03:12:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 03:12:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 03:12:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 03:12:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure config_data_swab [2021-11-17 03:12:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure config_data_swab [2021-11-17 03:12:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:12:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-17 03:12:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-17 03:12:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_issue_card_cmd [2021-11-17 03:12:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_issue_card_cmd [2021-11-17 03:12:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 03:12:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 03:12:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-17 03:12:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-17 03:12:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 03:12:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 03:12:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_detach_dev [2021-11-17 03:12:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_detach_dev [2021-11-17 03:12:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure CR_INTR_DMA [2021-11-17 03:12:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure CR_INTR_DMA [2021-11-17 03:12:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 03:12:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 03:12:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure push_tracker [2021-11-17 03:12:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure push_tracker [2021-11-17 03:12:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 03:12:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 03:12:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 03:12:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 03:12:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 03:12:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2021-11-17 03:12:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_reset_lock_of_NOT_ARG_SIGN [2021-11-17 03:12:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_reset_lock_of_NOT_ARG_SIGN [2021-11-17 03:12:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure CREG_DATA [2021-11-17 03:12:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure CREG_DATA [2021-11-17 03:12:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-11-17 03:12:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-11-17 03:12:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-17 03:12:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-17 03:12:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 03:12:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 03:12:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 03:12:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 03:12:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2021-11-17 03:12:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2021-11-17 03:12:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure card_event_handler [2021-11-17 03:12:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure card_event_handler [2021-11-17 03:12:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 03:12:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 03:12:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-17 03:12:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-17 03:12:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:12:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:12:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2021-11-17 03:12:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2021-11-17 03:12:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_creg_write [2021-11-17 03:12:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_creg_write [2021-11-17 03:12:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:12:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2021-11-17 03:12:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2021-11-17 03:12:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-17 03:12:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-17 03:12:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-17 03:12:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-17 03:12:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:12:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2021-11-17 03:12:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2021-11-17 03:12:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 03:12:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 03:12:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:12:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-11-17 03:12:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-11-17 03:12:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_intr_coal_val [2021-11-17 03:12:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_intr_coal_val [2021-11-17 03:12:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 03:12:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 03:12:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_pci_remove [2021-11-17 03:12:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_pci_remove [2021-11-17 03:12:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-17 03:12:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-17 03:12:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 03:12:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 03:12:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-17 03:12:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-17 03:12:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 03:12:59,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 03:12:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_destroy [2021-11-17 03:12:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_destroy [2021-11-17 03:12:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_queue_reset [2021-11-17 03:12:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_queue_reset [2021-11-17 03:12:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure __issue_creg_rw [2021-11-17 03:12:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __issue_creg_rw [2021-11-17 03:12:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_dev_lock_of_rsxx_cardinfo [2021-11-17 03:12:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_dev_lock_of_rsxx_cardinfo [2021-11-17 03:12:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:12:59,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:12:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 03:12:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 03:12:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 03:12:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 03:12:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 03:12:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 03:12:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:12:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:12:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_creg_read [2021-11-17 03:12:59,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_creg_read [2021-11-17 03:12:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reset_lock_of_NOT_ARG_SIGN [2021-11-17 03:12:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reset_lock_of_NOT_ARG_SIGN [2021-11-17 03:12:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-17 03:12:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-17 03:12:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-11-17 03:12:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-11-17 03:12:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-17 03:12:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-17 03:12:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-11-17 03:12:59,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-11-17 03:12:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_dev_lock_of_rsxx_cardinfo [2021-11-17 03:12:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_dev_lock_of_rsxx_cardinfo [2021-11-17 03:12:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-11-17 03:12:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-11-17 03:12:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_9 [2021-11-17 03:12:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_9 [2021-11-17 03:12:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 03:12:59,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 03:12:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:12:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:12:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-11-17 03:12:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-11-17 03:12:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_complete_dma [2021-11-17 03:12:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_complete_dma [2021-11-17 03:12:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 03:12:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 03:12:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 03:12:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 03:12:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:12:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:12:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-11-17 03:12:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-11-17 03:12:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 03:12:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 03:12:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_eeh_failure [2021-11-17 03:12:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_eeh_failure [2021-11-17 03:12:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure card_shutdown [2021-11-17 03:12:59,799 INFO L138 BoogieDeclarations]: Found implementation of procedure card_shutdown [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 03:12:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 03:12:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-17 03:12:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:12:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_reg_access [2021-11-17 03:12:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_reg_access [2021-11-17 03:12:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-11-17 03:12:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-11-17 03:12:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:12:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure creg_kick_queue [2021-11-17 03:12:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_kick_queue [2021-11-17 03:12:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-11-17 03:12:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-11-17 03:12:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 03:12:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 03:12:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 03:12:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 03:12:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 03:12:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 03:12:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 03:12:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 03:12:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_dma_cleanup [2021-11-17 03:12:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_dma_cleanup [2021-11-17 03:12:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 03:12:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 03:12:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 03:12:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 03:12:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 03:12:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 03:12:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-17 03:12:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-17 03:12:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_6 [2021-11-17 03:12:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_6 [2021-11-17 03:12:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-17 03:12:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-17 03:12:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_pci_shutdown [2021-11-17 03:12:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_pci_shutdown [2021-11-17 03:12:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure issue_creg_rw [2021-11-17 03:12:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_creg_rw [2021-11-17 03:12:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_card_state_to_str [2021-11-17 03:12:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_card_state_to_str [2021-11-17 03:12:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-17 03:12:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-17 03:12:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_disable_ier [2021-11-17 03:12:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_disable_ier [2021-11-17 03:12:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 03:12:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 03:12:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-17 03:12:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-17 03:12:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:12:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-17 03:12:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-17 03:12:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-17 03:12:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-17 03:12:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_disable_ier_and_isr [2021-11-17 03:12:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_disable_ier_and_isr [2021-11-17 03:12:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 03:12:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 03:12:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 03:12:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 03:12:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-11-17 03:12:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-11-17 03:12:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_tracker_dma [2021-11-17 03:12:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tracker_dma [2021-11-17 03:12:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:12:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:12:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 03:12:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 03:12:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure creg_cmd_done [2021-11-17 03:12:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure creg_cmd_done [2021-11-17 03:12:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 03:12:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 03:12:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 03:12:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 03:12:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_enable_ier_and_isr [2021-11-17 03:12:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_enable_ier_and_isr [2021-11-17 03:12:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-17 03:12:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-17 03:12:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_get_card_size8 [2021-11-17 03:12:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_get_card_size8 [2021-11-17 03:12:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_9 [2021-11-17 03:12:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_9 [2021-11-17 03:12:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-17 03:12:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-11-17 03:12:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure rsxx_read_hw_log [2021-11-17 03:12:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure rsxx_read_hw_log [2021-11-17 03:12:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-11-17 03:12:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-11-17 03:12:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 03:12:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 03:12:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 03:12:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 03:12:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-11-17 03:12:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-11-17 03:12:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 03:12:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 03:12:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 03:12:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 03:12:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_size [2021-11-17 03:12:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_size [2021-11-17 03:12:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_intr [2021-11-17 03:12:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_intr [2021-11-17 03:12:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:12:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-11-17 03:12:59,811 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-11-17 03:13:00,404 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:13:00,407 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:13:00,507 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:13:10,385 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:13:10,400 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:13:10,401 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 03:13:10,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:13:10 BoogieIcfgContainer [2021-11-17 03:13:10,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:13:10,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:13:10,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:13:10,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:13:10,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:12:56" (1/3) ... [2021-11-17 03:13:10,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721588ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:13:10, skipping insertion in model container [2021-11-17 03:13:10,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:59" (2/3) ... [2021-11-17 03:13:10,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721588ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:13:10, skipping insertion in model container [2021-11-17 03:13:10,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:13:10" (3/3) ... [2021-11-17 03:13:10,413 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--block--rsxx--rsxx.ko-entry_point.cil.out.i [2021-11-17 03:13:10,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:13:10,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:13:10,466 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:13:10,472 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 03:13:10,472 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:13:10,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 2234 states, 1535 states have (on average 1.3179153094462541) internal successors, (2023), 1583 states have internal predecessors, (2023), 551 states have call successors, (551), 147 states have call predecessors, (551), 146 states have return successors, (540), 538 states have call predecessors, (540), 540 states have call successors, (540) [2021-11-17 03:13:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-17 03:13:10,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:10,541 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:10,541 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:10,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:10,545 INFO L85 PathProgramCache]: Analyzing trace with hash 638574124, now seen corresponding path program 1 times [2021-11-17 03:13:10,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:10,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266302357] [2021-11-17 03:13:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:10,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:13:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:13:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:13:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:13:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:13:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:13:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:13:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:13:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:13:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 03:13:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:13:11,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:11,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266302357] [2021-11-17 03:13:11,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266302357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:11,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:11,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 03:13:11,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693702223] [2021-11-17 03:13:11,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:11,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 03:13:11,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:11,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 03:13:11,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 03:13:11,520 INFO L87 Difference]: Start difference. First operand has 2234 states, 1535 states have (on average 1.3179153094462541) internal successors, (2023), 1583 states have internal predecessors, (2023), 551 states have call successors, (551), 147 states have call predecessors, (551), 146 states have return successors, (540), 538 states have call predecessors, (540), 540 states have call successors, (540) Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 03:13:13,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:15,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:18,141 WARN L515 Checker$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 03:13:20,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:24,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:24,653 INFO L93 Difference]: Finished difference Result 4764 states and 6922 transitions. [2021-11-17 03:13:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 03:13:24,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 291 [2021-11-17 03:13:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:24,698 INFO L225 Difference]: With dead ends: 4764 [2021-11-17 03:13:24,699 INFO L226 Difference]: Without dead ends: 2515 [2021-11-17 03:13:24,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:13:24,742 INFO L933 BasicCegarLoop]: 2998 mSDtfsCounter, 1391 mSDsluCounter, 2615 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 1473 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:24,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 5613 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 1854 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2021-11-17 03:13:24,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2021-11-17 03:13:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2214. [2021-11-17 03:13:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2214 states, 1528 states have (on average 1.3089005235602094) internal successors, (2000), 1563 states have internal predecessors, (2000), 540 states have call successors, (540), 146 states have call predecessors, (540), 145 states have return successors, (530), 528 states have call predecessors, (530), 530 states have call successors, (530) [2021-11-17 03:13:24,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 3070 transitions. [2021-11-17 03:13:24,899 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 3070 transitions. Word has length 291 [2021-11-17 03:13:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:24,901 INFO L470 AbstractCegarLoop]: Abstraction has 2214 states and 3070 transitions. [2021-11-17 03:13:24,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 03:13:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 3070 transitions. [2021-11-17 03:13:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-17 03:13:24,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:24,907 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:24,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:13:24,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:24,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1382787271, now seen corresponding path program 1 times [2021-11-17 03:13:24,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:24,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670039891] [2021-11-17 03:13:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:24,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:13:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:13:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:13:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:13:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:13:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:13:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:13:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:13:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:13:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:13:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:13:25,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:25,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670039891] [2021-11-17 03:13:25,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670039891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:25,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:25,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:13:25,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264915420] [2021-11-17 03:13:25,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:25,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:13:25,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:25,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:13:25,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:13:25,403 INFO L87 Difference]: Start difference. First operand 2214 states and 3070 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 03:13:27,868 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 03:13:30,983 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 03:13:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:35,276 INFO L93 Difference]: Finished difference Result 6158 states and 8659 transitions. [2021-11-17 03:13:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:13:35,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 292 [2021-11-17 03:13:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:35,294 INFO L225 Difference]: With dead ends: 6158 [2021-11-17 03:13:35,295 INFO L226 Difference]: Without dead ends: 3991 [2021-11-17 03:13:35,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:13:35,302 INFO L933 BasicCegarLoop]: 3179 mSDtfsCounter, 4976 mSDsluCounter, 3883 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 3462 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5181 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 5513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3462 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:35,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5181 Valid, 7062 Invalid, 5513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3462 Valid, 2049 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2021-11-17 03:13:35,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2021-11-17 03:13:35,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3491. [2021-11-17 03:13:35,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 2435 states have (on average 1.31088295687885) internal successors, (3192), 2480 states have internal predecessors, (3192), 805 states have call successors, (805), 251 states have call predecessors, (805), 250 states have return successors, (795), 791 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:13:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4792 transitions. [2021-11-17 03:13:35,394 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4792 transitions. Word has length 292 [2021-11-17 03:13:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:35,397 INFO L470 AbstractCegarLoop]: Abstraction has 3491 states and 4792 transitions. [2021-11-17 03:13:35,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 03:13:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4792 transitions. [2021-11-17 03:13:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-17 03:13:35,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:35,403 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:35,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:13:35,403 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:35,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1431688040, now seen corresponding path program 1 times [2021-11-17 03:13:35,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:35,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762550192] [2021-11-17 03:13:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:35,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:13:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:13:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:13:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:13:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:13:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:13:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:13:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:13:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:13:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:13:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:13:36,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:36,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762550192] [2021-11-17 03:13:36,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762550192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:36,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:36,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:13:36,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791500085] [2021-11-17 03:13:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:36,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:13:36,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:13:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:13:36,080 INFO L87 Difference]: Start difference. First operand 3491 states and 4792 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:13:38,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:40,756 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 03:13:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:45,040 INFO L93 Difference]: Finished difference Result 4313 states and 6246 transitions. [2021-11-17 03:13:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 03:13:45,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 299 [2021-11-17 03:13:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:45,056 INFO L225 Difference]: With dead ends: 4313 [2021-11-17 03:13:45,057 INFO L226 Difference]: Without dead ends: 4309 [2021-11-17 03:13:45,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:13:45,079 INFO L933 BasicCegarLoop]: 2937 mSDtfsCounter, 5535 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 3685 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 5682 SdHoareTripleChecker+Invalid, 5541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3685 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:45,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5933 Valid, 5682 Invalid, 5541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3685 Valid, 1854 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-17 03:13:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2021-11-17 03:13:45,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 3492. [2021-11-17 03:13:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3492 states, 2437 states have (on average 1.3098071399261386) internal successors, (3192), 2480 states have internal predecessors, (3192), 803 states have call successors, (803), 252 states have call predecessors, (803), 251 states have return successors, (795), 791 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:13:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 4790 transitions. [2021-11-17 03:13:45,247 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 4790 transitions. Word has length 299 [2021-11-17 03:13:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:45,248 INFO L470 AbstractCegarLoop]: Abstraction has 3492 states and 4790 transitions. [2021-11-17 03:13:45,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:13:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 4790 transitions. [2021-11-17 03:13:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-17 03:13:45,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:45,252 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:45,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 03:13:45,252 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1433506857, now seen corresponding path program 1 times [2021-11-17 03:13:45,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:45,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158279554] [2021-11-17 03:13:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:45,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:13:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:13:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:13:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:13:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:13:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:13:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:13:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:13:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:13:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:13:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:13:45,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:45,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158279554] [2021-11-17 03:13:45,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158279554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:45,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:45,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:13:45,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635706784] [2021-11-17 03:13:45,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:45,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:13:45,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:45,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:13:45,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:13:45,723 INFO L87 Difference]: Start difference. First operand 3492 states and 4790 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:13:47,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:49,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:52,273 WARN L515 Checker$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 03:13:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:57,210 INFO L93 Difference]: Finished difference Result 4309 states and 6241 transitions. [2021-11-17 03:13:57,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 03:13:57,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 300 [2021-11-17 03:13:57,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:57,235 INFO L225 Difference]: With dead ends: 4309 [2021-11-17 03:13:57,235 INFO L226 Difference]: Without dead ends: 4306 [2021-11-17 03:13:57,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:13:57,244 INFO L933 BasicCegarLoop]: 2933 mSDtfsCounter, 5580 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 3748 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5989 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 5581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3748 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:57,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5989 Valid, 5633 Invalid, 5581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3748 Valid, 1830 Invalid, 3 Unknown, 0 Unchecked, 11.2s Time] [2021-11-17 03:13:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2021-11-17 03:13:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 3491. [2021-11-17 03:13:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 2437 states have (on average 1.309396799343455) internal successors, (3191), 2479 states have internal predecessors, (3191), 802 states have call successors, (802), 252 states have call predecessors, (802), 251 states have return successors, (795), 791 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:13:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4788 transitions. [2021-11-17 03:13:57,373 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4788 transitions. Word has length 300 [2021-11-17 03:13:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:57,376 INFO L470 AbstractCegarLoop]: Abstraction has 3491 states and 4788 transitions. [2021-11-17 03:13:57,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:13:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4788 transitions. [2021-11-17 03:13:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-17 03:13:57,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:57,379 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:57,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 03:13:57,379 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:57,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1489885317, now seen corresponding path program 1 times [2021-11-17 03:13:57,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:57,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221980859] [2021-11-17 03:13:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:57,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:13:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:13:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:13:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:13:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:13:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:13:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:13:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:13:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:13:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:13:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:57,854 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:13:57,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:57,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221980859] [2021-11-17 03:13:57,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221980859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:57,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:57,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:13:57,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215641614] [2021-11-17 03:13:57,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:57,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:13:57,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:13:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:13:57,857 INFO L87 Difference]: Start difference. First operand 3491 states and 4788 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:13:59,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:01,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:04,421 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 03:14:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:14:09,143 INFO L93 Difference]: Finished difference Result 4308 states and 6239 transitions. [2021-11-17 03:14:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 03:14:09,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 301 [2021-11-17 03:14:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:14:09,186 INFO L225 Difference]: With dead ends: 4308 [2021-11-17 03:14:09,186 INFO L226 Difference]: Without dead ends: 4305 [2021-11-17 03:14:09,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:14:09,190 INFO L933 BasicCegarLoop]: 2920 mSDtfsCounter, 5566 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 3725 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5979 SdHoareTripleChecker+Valid, 5628 SdHoareTripleChecker+Invalid, 5555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3725 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:14:09,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5979 Valid, 5628 Invalid, 5555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3725 Valid, 1827 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 03:14:09,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4305 states. [2021-11-17 03:14:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 3490. [2021-11-17 03:14:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 2437 states have (on average 1.3089864587607714) internal successors, (3190), 2478 states have internal predecessors, (3190), 801 states have call successors, (801), 252 states have call predecessors, (801), 251 states have return successors, (795), 791 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:14:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 4786 transitions. [2021-11-17 03:14:09,303 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 4786 transitions. Word has length 301 [2021-11-17 03:14:09,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:14:09,304 INFO L470 AbstractCegarLoop]: Abstraction has 3490 states and 4786 transitions. [2021-11-17 03:14:09,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:14:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 4786 transitions. [2021-11-17 03:14:09,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-17 03:14:09,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:14:09,307 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:09,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 03:14:09,308 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:14:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:14:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1057354586, now seen corresponding path program 1 times [2021-11-17 03:14:09,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:14:09,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088284236] [2021-11-17 03:14:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:14:09,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:14:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:14:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:14:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:14:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:14:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:14:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:14:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:14:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:14:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:14:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:14:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:14:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:14:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:14:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:14:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:14:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:14:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:14:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:14:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:14:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:14:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:14:09,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:14:09,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088284236] [2021-11-17 03:14:09,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088284236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:14:09,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:14:09,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:14:09,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262371587] [2021-11-17 03:14:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:14:09,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:14:09,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:14:09,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:14:09,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:14:09,768 INFO L87 Difference]: Start difference. First operand 3490 states and 4786 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:14:11,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:13,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:15,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:17,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:20,417 WARN L515 Checker$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 03:14:22,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:24,474 WARN L515 Checker$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 03:14:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:14:31,203 INFO L93 Difference]: Finished difference Result 4307 states and 6237 transitions. [2021-11-17 03:14:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 03:14:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 302 [2021-11-17 03:14:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:14:31,218 INFO L225 Difference]: With dead ends: 4307 [2021-11-17 03:14:31,219 INFO L226 Difference]: Without dead ends: 4304 [2021-11-17 03:14:31,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:14:31,221 INFO L933 BasicCegarLoop]: 2925 mSDtfsCounter, 4308 mSDsluCounter, 5175 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 2212 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4723 SdHoareTripleChecker+Valid, 8100 SdHoareTripleChecker+Invalid, 6025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2212 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2021-11-17 03:14:31,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4723 Valid, 8100 Invalid, 6025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2212 Valid, 3806 Invalid, 7 Unknown, 0 Unchecked, 21.2s Time] [2021-11-17 03:14:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2021-11-17 03:14:31,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 3489. [2021-11-17 03:14:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 2437 states have (on average 1.3085761181780877) internal successors, (3189), 2477 states have internal predecessors, (3189), 800 states have call successors, (800), 252 states have call predecessors, (800), 251 states have return successors, (795), 791 states have call predecessors, (795), 795 states have call successors, (795) [2021-11-17 03:14:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4784 transitions. [2021-11-17 03:14:31,318 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4784 transitions. Word has length 302 [2021-11-17 03:14:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:14:31,319 INFO L470 AbstractCegarLoop]: Abstraction has 3489 states and 4784 transitions. [2021-11-17 03:14:31,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:14:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4784 transitions. [2021-11-17 03:14:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-17 03:14:31,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:14:31,327 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:31,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 03:14:31,327 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:14:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:14:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1582582178, now seen corresponding path program 1 times [2021-11-17 03:14:31,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:14:31,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26286753] [2021-11-17 03:14:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:14:31,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:14:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:14:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:14:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:14:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:14:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:14:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:14:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:14:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:14:31,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:14:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:14:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:14:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:14:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:14:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:14:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:14:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:14:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:14:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:14:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:14:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:14:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:14:31,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:14:31,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26286753] [2021-11-17 03:14:31,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26286753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:14:31,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:14:31,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:14:31,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721098539] [2021-11-17 03:14:31,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:14:31,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:14:31,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:14:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:14:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:14:31,723 INFO L87 Difference]: Start difference. First operand 3489 states and 4784 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:14:33,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:35,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:38,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:41,101 WARN L515 Checker$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 03:14:43,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:46,183 WARN L515 Checker$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 03:14:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:14:58,249 INFO L93 Difference]: Finished difference Result 11974 states and 17360 transitions. [2021-11-17 03:14:58,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:14:58,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 303 [2021-11-17 03:14:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:14:58,298 INFO L225 Difference]: With dead ends: 11974 [2021-11-17 03:14:58,299 INFO L226 Difference]: Without dead ends: 8532 [2021-11-17 03:14:58,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:14:58,314 INFO L933 BasicCegarLoop]: 4199 mSDtfsCounter, 5559 mSDsluCounter, 9623 mSDsCounter, 0 mSdLazyCounter, 7432 mSolverCounterSat, 3305 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6063 SdHoareTripleChecker+Valid, 13822 SdHoareTripleChecker+Invalid, 10743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3305 IncrementalHoareTripleChecker+Valid, 7432 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:14:58,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6063 Valid, 13822 Invalid, 10743 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3305 Valid, 7432 Invalid, 6 Unknown, 0 Unchecked, 26.0s Time] [2021-11-17 03:14:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8532 states. [2021-11-17 03:14:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8532 to 6934. [2021-11-17 03:14:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6934 states, 4845 states have (on average 1.3098039215686275) internal successors, (6346), 4936 states have internal predecessors, (6346), 1575 states have call successors, (1575), 499 states have call predecessors, (1575), 513 states have return successors, (1737), 1560 states have call predecessors, (1737), 1569 states have call successors, (1737) [2021-11-17 03:14:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 9658 transitions. [2021-11-17 03:14:58,623 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 9658 transitions. Word has length 303 [2021-11-17 03:14:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:14:58,625 INFO L470 AbstractCegarLoop]: Abstraction has 6934 states and 9658 transitions. [2021-11-17 03:14:58,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:14:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 9658 transitions. [2021-11-17 03:14:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-17 03:14:58,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:14:58,627 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:58,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 03:14:58,627 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:14:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:14:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1816238371, now seen corresponding path program 1 times [2021-11-17 03:14:58,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:14:58,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757042013] [2021-11-17 03:14:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:14:58,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:14:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:14:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:14:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:14:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:14:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:14:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:14:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:14:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:14:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:14:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:14:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:14:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:14:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:14:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:14:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:14:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:14:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:14:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:14:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:14:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:14:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:59,018 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2021-11-17 03:14:59,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:14:59,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757042013] [2021-11-17 03:14:59,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757042013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:14:59,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:14:59,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:14:59,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382196751] [2021-11-17 03:14:59,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:14:59,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:14:59,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:14:59,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:14:59,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:14:59,020 INFO L87 Difference]: Start difference. First operand 6934 states and 9658 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:15:01,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:03,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:05,466 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 03:15:09,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:15:09,841 INFO L93 Difference]: Finished difference Result 8526 states and 12491 transitions. [2021-11-17 03:15:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 03:15:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 304 [2021-11-17 03:15:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:15:09,877 INFO L225 Difference]: With dead ends: 8526 [2021-11-17 03:15:09,878 INFO L226 Difference]: Without dead ends: 8509 [2021-11-17 03:15:09,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:15:09,886 INFO L933 BasicCegarLoop]: 2906 mSDtfsCounter, 4989 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3028 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5406 SdHoareTripleChecker+Valid, 5666 SdHoareTripleChecker+Invalid, 4936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3028 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:15:09,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5406 Valid, 5666 Invalid, 4936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3028 Valid, 1905 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2021-11-17 03:15:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2021-11-17 03:15:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 6919. [2021-11-17 03:15:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6919 states, 4834 states have (on average 1.3094745552337608) internal successors, (6330), 4924 states have internal predecessors, (6330), 1571 states have call successors, (1571), 499 states have call predecessors, (1571), 513 states have return successors, (1734), 1557 states have call predecessors, (1734), 1566 states have call successors, (1734) [2021-11-17 03:15:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6919 states to 6919 states and 9635 transitions. [2021-11-17 03:15:10,229 INFO L78 Accepts]: Start accepts. Automaton has 6919 states and 9635 transitions. Word has length 304 [2021-11-17 03:15:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:15:10,229 INFO L470 AbstractCegarLoop]: Abstraction has 6919 states and 9635 transitions. [2021-11-17 03:15:10,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-17 03:15:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6919 states and 9635 transitions. [2021-11-17 03:15:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-11-17 03:15:10,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:15:10,236 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 03:15:10,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 03:15:10,237 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:15:10,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:15:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash -136958972, now seen corresponding path program 1 times [2021-11-17 03:15:10,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:15:10,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676183169] [2021-11-17 03:15:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:15:10,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:15:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:15:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:15:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:15:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:15:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:15:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:15:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:15:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:15:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:15:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:15:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:15:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:15:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:15:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:15:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:15:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:15:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:15:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:15:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:15:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:15:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:15:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:15:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:15:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:15:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-11-17 03:15:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 03:15:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-11-17 03:15:10,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:15:10,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676183169] [2021-11-17 03:15:10,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676183169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:15:10,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:15:10,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:15:10,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391901002] [2021-11-17 03:15:10,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:15:10,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:15:10,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:15:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:15:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:15:10,664 INFO L87 Difference]: Start difference. First operand 6919 states and 9635 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:15:12,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:14,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:16,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:18,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:21,698 WARN L515 Checker$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 03:15:23,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:25,746 WARN L515 Checker$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 03:15:27,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:29,806 WARN L515 Checker$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 03:15:43,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:15:43,777 INFO L93 Difference]: Finished difference Result 17743 states and 26013 transitions. [2021-11-17 03:15:43,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:15:43,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 385 [2021-11-17 03:15:43,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:15:43,811 INFO L225 Difference]: With dead ends: 17743 [2021-11-17 03:15:43,811 INFO L226 Difference]: Without dead ends: 10871 [2021-11-17 03:15:43,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:15:43,833 INFO L933 BasicCegarLoop]: 4035 mSDtfsCounter, 4471 mSDsluCounter, 12089 mSDsCounter, 0 mSdLazyCounter, 10483 mSolverCounterSat, 3290 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4619 SdHoareTripleChecker+Valid, 16124 SdHoareTripleChecker+Invalid, 13782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3290 IncrementalHoareTripleChecker+Valid, 10483 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:15:43,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4619 Valid, 16124 Invalid, 13782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3290 Valid, 10483 Invalid, 9 Unknown, 0 Unchecked, 32.4s Time] [2021-11-17 03:15:43,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10871 states. [2021-11-17 03:15:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10871 to 6927. [2021-11-17 03:15:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6927 states, 4842 states have (on average 1.3089632383312682) internal successors, (6338), 4932 states have internal predecessors, (6338), 1571 states have call successors, (1571), 499 states have call predecessors, (1571), 513 states have return successors, (1734), 1557 states have call predecessors, (1734), 1566 states have call successors, (1734) [2021-11-17 03:15:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6927 states to 6927 states and 9643 transitions. [2021-11-17 03:15:44,176 INFO L78 Accepts]: Start accepts. Automaton has 6927 states and 9643 transitions. Word has length 385 [2021-11-17 03:15:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:15:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 6927 states and 9643 transitions. [2021-11-17 03:15:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:15:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6927 states and 9643 transitions. [2021-11-17 03:15:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-17 03:15:44,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:15:44,183 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 03:15:44,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 03:15:44,183 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:15:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:15:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash 954689, now seen corresponding path program 1 times [2021-11-17 03:15:44,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:15:44,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146889474] [2021-11-17 03:15:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:15:44,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:15:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:15:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:15:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:15:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:15:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:15:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:15:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:15:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:15:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:15:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:15:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:15:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:15:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:15:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:15:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:15:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:15:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:15:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:15:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:15:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:15:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:15:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:15:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:15:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-11-17 03:15:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-17 03:15:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 03:15:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-11-17 03:15:44,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:15:44,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146889474] [2021-11-17 03:15:44,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146889474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:15:44,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:15:44,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:15:44,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699750975] [2021-11-17 03:15:44,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:15:44,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:15:44,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:15:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:15:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:15:44,584 INFO L87 Difference]: Start difference. First operand 6927 states and 9643 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:15:46,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:48,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:50,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:52,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:55,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:57,459 WARN L515 Checker$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 03:15:59,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:01,514 WARN L515 Checker$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 03:16:03,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:16:15,347 INFO L93 Difference]: Finished difference Result 20149 states and 30050 transitions. [2021-11-17 03:16:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:16:15,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 382 [2021-11-17 03:16:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:16:15,401 INFO L225 Difference]: With dead ends: 20149 [2021-11-17 03:16:15,402 INFO L226 Difference]: Without dead ends: 13269 [2021-11-17 03:16:15,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:16:15,424 INFO L933 BasicCegarLoop]: 4354 mSDtfsCounter, 5421 mSDsluCounter, 12086 mSDsCounter, 0 mSdLazyCounter, 9611 mSolverCounterSat, 3322 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5870 SdHoareTripleChecker+Valid, 16440 SdHoareTripleChecker+Invalid, 12942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3322 IncrementalHoareTripleChecker+Valid, 9611 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:16:15,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5870 Valid, 16440 Invalid, 12942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3322 Valid, 9611 Invalid, 9 Unknown, 0 Unchecked, 30.0s Time] [2021-11-17 03:16:15,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13269 states. [2021-11-17 03:16:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13269 to 6935. [2021-11-17 03:16:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 4850 states have (on average 1.3084536082474227) internal successors, (6346), 4940 states have internal predecessors, (6346), 1571 states have call successors, (1571), 499 states have call predecessors, (1571), 513 states have return successors, (1734), 1557 states have call predecessors, (1734), 1566 states have call successors, (1734) [2021-11-17 03:16:15,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 9651 transitions. [2021-11-17 03:16:15,801 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 9651 transitions. Word has length 382 [2021-11-17 03:16:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:16:15,802 INFO L470 AbstractCegarLoop]: Abstraction has 6935 states and 9651 transitions. [2021-11-17 03:16:15,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:16:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 9651 transitions. [2021-11-17 03:16:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-17 03:16:15,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:16:15,808 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 03:16:15,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 03:16:15,809 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:16:15,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:16:15,809 INFO L85 PathProgramCache]: Analyzing trace with hash -351517917, now seen corresponding path program 1 times [2021-11-17 03:16:15,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:16:15,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865670501] [2021-11-17 03:16:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:16:15,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:16:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:16:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:16:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:16:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:16:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:16:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:16:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:16:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:16:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:16:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:16:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:16:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:16:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:16:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:16:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:16:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:16:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:16:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:16:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:16:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:16:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:16:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:16:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:16:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 03:16:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 03:16:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 03:16:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-11-17 03:16:16,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:16:16,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865670501] [2021-11-17 03:16:16,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865670501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:16:16,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:16:16,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:16:16,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255217981] [2021-11-17 03:16:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:16:16,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:16:16,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:16:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:16:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:16:16,185 INFO L87 Difference]: Start difference. First operand 6935 states and 9651 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:16:18,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:20,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:22,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:24,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:27,298 WARN L515 Checker$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 03:16:29,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:31,360 WARN L515 Checker$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 03:16:33,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:35,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:37,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:16:52,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:16:52,439 INFO L93 Difference]: Finished difference Result 20205 states and 30130 transitions. [2021-11-17 03:16:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:16:52,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 384 [2021-11-17 03:16:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:16:52,483 INFO L225 Difference]: With dead ends: 20205 [2021-11-17 03:16:52,484 INFO L226 Difference]: Without dead ends: 13317 [2021-11-17 03:16:52,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:16:52,503 INFO L933 BasicCegarLoop]: 4364 mSDtfsCounter, 5312 mSDsluCounter, 13679 mSDsCounter, 0 mSdLazyCounter, 11614 mSolverCounterSat, 3237 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5760 SdHoareTripleChecker+Valid, 18043 SdHoareTripleChecker+Invalid, 14861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3237 IncrementalHoareTripleChecker+Valid, 11614 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:16:52,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5760 Valid, 18043 Invalid, 14861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3237 Valid, 11614 Invalid, 10 Unknown, 0 Unchecked, 35.3s Time] [2021-11-17 03:16:52,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2021-11-17 03:16:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 6943. [2021-11-17 03:16:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6943 states, 4858 states have (on average 1.3079456566488268) internal successors, (6354), 4948 states have internal predecessors, (6354), 1571 states have call successors, (1571), 499 states have call predecessors, (1571), 513 states have return successors, (1734), 1557 states have call predecessors, (1734), 1566 states have call successors, (1734) [2021-11-17 03:16:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 9659 transitions. [2021-11-17 03:16:52,856 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 9659 transitions. Word has length 384 [2021-11-17 03:16:52,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:16:52,857 INFO L470 AbstractCegarLoop]: Abstraction has 6943 states and 9659 transitions. [2021-11-17 03:16:52,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:16:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 9659 transitions. [2021-11-17 03:16:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-17 03:16:52,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:16:52,864 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 03:16:52,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 03:16:52,865 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:16:52,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:16:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1083485343, now seen corresponding path program 1 times [2021-11-17 03:16:52,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:16:52,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220631762] [2021-11-17 03:16:52,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:16:52,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:16:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:16:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:16:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:16:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:16:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:16:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:16:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:16:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:16:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:16:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:16:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:16:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:16:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:16:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:16:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:16:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:16:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:16:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:16:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:16:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:16:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:16:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:16:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:16:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:16:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:16:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 03:16:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 03:16:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 03:16:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:16:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2021-11-17 03:16:53,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:16:53,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220631762] [2021-11-17 03:16:53,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220631762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:16:53,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:16:53,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:16:53,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805135598] [2021-11-17 03:16:53,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:16:53,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:16:53,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:16:53,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:16:53,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:16:53,264 INFO L87 Difference]: Start difference. First operand 6943 states and 9659 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:16:55,291 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 03:16:58,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:00,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:02,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:04,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:06,862 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 03:17:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:17:14,394 INFO L93 Difference]: Finished difference Result 15438 states and 22092 transitions. [2021-11-17 03:17:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:17:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 384 [2021-11-17 03:17:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:17:14,422 INFO L225 Difference]: With dead ends: 15438 [2021-11-17 03:17:14,422 INFO L226 Difference]: Without dead ends: 8542 [2021-11-17 03:17:14,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-17 03:17:14,441 INFO L933 BasicCegarLoop]: 2817 mSDtfsCounter, 5891 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 4515 mSolverCounterSat, 4331 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 6475 SdHoareTripleChecker+Invalid, 8852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4331 IncrementalHoareTripleChecker+Valid, 4515 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:17:14,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 6475 Invalid, 8852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4331 Valid, 4515 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2021-11-17 03:17:14,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2021-11-17 03:17:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 6943. [2021-11-17 03:17:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6943 states, 4858 states have (on average 1.30712227254014) internal successors, (6350), 4948 states have internal predecessors, (6350), 1571 states have call successors, (1571), 499 states have call predecessors, (1571), 513 states have return successors, (1734), 1557 states have call predecessors, (1734), 1566 states have call successors, (1734) [2021-11-17 03:17:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 9655 transitions. [2021-11-17 03:17:14,748 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 9655 transitions. Word has length 384 [2021-11-17 03:17:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:17:14,749 INFO L470 AbstractCegarLoop]: Abstraction has 6943 states and 9655 transitions. [2021-11-17 03:17:14,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 03:17:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 9655 transitions. [2021-11-17 03:17:14,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-11-17 03:17:14,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:17:14,756 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:17:14,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 03:17:14,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:17:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:17:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash 2087548555, now seen corresponding path program 1 times [2021-11-17 03:17:14,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:17:14,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362290655] [2021-11-17 03:17:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:17:14,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:17:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:17:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:17:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:17:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:17:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:17:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:17:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:17:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:14,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:17:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:17:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:17:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:17:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:17:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:17:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:17:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:17:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:17:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:17:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:17:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:17:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 03:17:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:17:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 03:17:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 03:17:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 03:17:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 03:17:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 03:17:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:17:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-17 03:17:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:17:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 03:17:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2021-11-17 03:17:15,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:17:15,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362290655] [2021-11-17 03:17:15,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362290655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:17:15,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:17:15,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 03:17:15,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950216529] [2021-11-17 03:17:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:17:15,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 03:17:15,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:17:15,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 03:17:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:17:15,286 INFO L87 Difference]: Start difference. First operand 6943 states and 9655 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (40), 9 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 03:17:16,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:18,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:20,285 WARN L515 Checker$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 03:17:22,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:28,585 WARN L515 Checker$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 03:17:36,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:17:36,703 INFO L93 Difference]: Finished difference Result 24891 states and 36390 transitions. [2021-11-17 03:17:36,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 03:17:36,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (40), 9 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 394 [2021-11-17 03:17:36,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:17:36,805 INFO L225 Difference]: With dead ends: 24891 [2021-11-17 03:17:36,805 INFO L226 Difference]: Without dead ends: 17995 [2021-11-17 03:17:36,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-11-17 03:17:36,825 INFO L933 BasicCegarLoop]: 4418 mSDtfsCounter, 8639 mSDsluCounter, 7463 mSDsCounter, 0 mSdLazyCounter, 7468 mSolverCounterSat, 6877 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9280 SdHoareTripleChecker+Valid, 11881 SdHoareTripleChecker+Invalid, 14348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6877 IncrementalHoareTripleChecker+Valid, 7468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:17:36,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9280 Valid, 11881 Invalid, 14348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6877 Valid, 7468 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2021-11-17 03:17:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17995 states. [2021-11-17 03:17:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17995 to 14063. [2021-11-17 03:17:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14063 states, 9873 states have (on average 1.309936189608022) internal successors, (12933), 10054 states have internal predecessors, (12933), 3150 states have call successors, (3150), 986 states have call predecessors, (3150), 1039 states have return successors, (3546), 3152 states have call predecessors, (3546), 3145 states have call successors, (3546) [2021-11-17 03:17:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 19629 transitions. [2021-11-17 03:17:37,701 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 19629 transitions. Word has length 394 [2021-11-17 03:17:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:17:37,702 INFO L470 AbstractCegarLoop]: Abstraction has 14063 states and 19629 transitions. [2021-11-17 03:17:37,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (40), 9 states have call predecessors, (40), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 03:17:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 19629 transitions. [2021-11-17 03:17:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-17 03:17:37,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:17:37,709 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:17:37,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 03:17:37,709 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:17:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:17:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1624062192, now seen corresponding path program 1 times [2021-11-17 03:17:37,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:17:37,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368761884] [2021-11-17 03:17:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:17:37,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:17:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:17:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:17:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:17:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:17:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:17:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:17:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:17:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:17:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:17:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:17:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:17:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:17:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:17:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:17:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:17:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:17:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:17:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:17:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:17:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:17:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:17:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:17:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 03:17:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 03:17:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 03:17:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 03:17:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 03:17:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 03:17:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 03:17:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:17:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:17:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-17 03:17:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-11-17 03:17:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-11-17 03:17:38,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:17:38,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368761884] [2021-11-17 03:17:38,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368761884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:17:38,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:17:38,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 03:17:38,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900612285] [2021-11-17 03:17:38,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:17:38,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 03:17:38,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:17:38,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 03:17:38,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:17:38,393 INFO L87 Difference]: Start difference. First operand 14063 states and 19629 transitions. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 03:17:41,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:43,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:46,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:48,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:17:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:17:58,751 INFO L93 Difference]: Finished difference Result 30967 states and 44821 transitions. [2021-11-17 03:17:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 03:17:58,751 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 406 [2021-11-17 03:17:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:17:58,830 INFO L225 Difference]: With dead ends: 30967 [2021-11-17 03:17:58,830 INFO L226 Difference]: Without dead ends: 16951 [2021-11-17 03:17:58,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-11-17 03:17:58,861 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 5235 mSDsluCounter, 8897 mSDsCounter, 0 mSdLazyCounter, 7177 mSolverCounterSat, 3327 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 11849 SdHoareTripleChecker+Invalid, 10508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3327 IncrementalHoareTripleChecker+Valid, 7177 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:17:58,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5599 Valid, 11849 Invalid, 10508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3327 Valid, 7177 Invalid, 4 Unknown, 0 Unchecked, 19.1s Time] [2021-11-17 03:17:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16951 states. [2021-11-17 03:17:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16951 to 14185. [2021-11-17 03:17:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14185 states, 9969 states have (on average 1.308757147156184) internal successors, (13047), 10153 states have internal predecessors, (13047), 3162 states have call successors, (3162), 997 states have call predecessors, (3162), 1053 states have return successors, (3573), 3164 states have call predecessors, (3573), 3157 states have call successors, (3573) [2021-11-17 03:17:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14185 states to 14185 states and 19782 transitions. [2021-11-17 03:17:59,669 INFO L78 Accepts]: Start accepts. Automaton has 14185 states and 19782 transitions. Word has length 406 [2021-11-17 03:17:59,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:17:59,670 INFO L470 AbstractCegarLoop]: Abstraction has 14185 states and 19782 transitions. [2021-11-17 03:17:59,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (45), 9 states have call predecessors, (45), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 03:17:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 14185 states and 19782 transitions. [2021-11-17 03:17:59,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-11-17 03:17:59,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:17:59,677 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:17:59,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 03:17:59,677 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:17:59,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:17:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash 394939831, now seen corresponding path program 1 times [2021-11-17 03:17:59,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:17:59,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307766506] [2021-11-17 03:17:59,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:17:59,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:17:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:17:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:17:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:17:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:17:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:17:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:17:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:17:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:17:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:17:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:17:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:17:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:17:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:17:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:17:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:17:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:17:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:17:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:17:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:17:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:17:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 03:17:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 03:17:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 03:17:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:17:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:17:59,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:17:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 03:18:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 03:18:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 03:18:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 03:18:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 03:18:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 03:18:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:18:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-17 03:18:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 03:18:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-17 03:18:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2021-11-17 03:18:00,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:18:00,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307766506] [2021-11-17 03:18:00,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307766506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:18:00,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:18:00,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-17 03:18:00,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22510120] [2021-11-17 03:18:00,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:18:00,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 03:18:00,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:18:00,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 03:18:00,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:18:00,244 INFO L87 Difference]: Start difference. First operand 14185 states and 19782 transitions. Second operand has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 7 states have internal predecessors, (129), 2 states have call successors, (45), 8 states have call predecessors, (45), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 03:18:02,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:04,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:07,990 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 03:18:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:18:18,878 INFO L93 Difference]: Finished difference Result 24980 states and 34843 transitions. [2021-11-17 03:18:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 03:18:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 7 states have internal predecessors, (129), 2 states have call successors, (45), 8 states have call predecessors, (45), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 405 [2021-11-17 03:18:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:18:18,903 INFO L225 Difference]: With dead ends: 24980 [2021-11-17 03:18:18,903 INFO L226 Difference]: Without dead ends: 10865 [2021-11-17 03:18:18,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2021-11-17 03:18:18,928 INFO L933 BasicCegarLoop]: 3014 mSDtfsCounter, 4326 mSDsluCounter, 12880 mSDsCounter, 0 mSdLazyCounter, 10270 mSolverCounterSat, 2572 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 15894 SdHoareTripleChecker+Invalid, 12845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2572 IncrementalHoareTripleChecker+Valid, 10270 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:18:18,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4705 Valid, 15894 Invalid, 12845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2572 Valid, 10270 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2021-11-17 03:18:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2021-11-17 03:18:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 9271. [2021-11-17 03:18:19,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9271 states, 6530 states have (on average 1.304594180704441) internal successors, (8519), 6632 states have internal predecessors, (8519), 1947 states have call successors, (1947), 791 states have call predecessors, (1947), 793 states have return successors, (1948), 1935 states have call predecessors, (1948), 1944 states have call successors, (1948) [2021-11-17 03:18:19,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9271 states to 9271 states and 12414 transitions. [2021-11-17 03:18:19,396 INFO L78 Accepts]: Start accepts. Automaton has 9271 states and 12414 transitions. Word has length 405 [2021-11-17 03:18:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:18:19,397 INFO L470 AbstractCegarLoop]: Abstraction has 9271 states and 12414 transitions. [2021-11-17 03:18:19,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 7 states have internal predecessors, (129), 2 states have call successors, (45), 8 states have call predecessors, (45), 3 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 03:18:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9271 states and 12414 transitions. [2021-11-17 03:18:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-17 03:18:19,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:18:19,423 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:19,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 03:18:19,423 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:18:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:18:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1343136127, now seen corresponding path program 1 times [2021-11-17 03:18:19,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:18:19,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018177000] [2021-11-17 03:18:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:18:19,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:18:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:18:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:18:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:18:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:18:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:18:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:18:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:18:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:18:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:18:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:18:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:18:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:18:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:18:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:18:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:18:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:18:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:18:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:18:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:18:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:18:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:18:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:18:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 03:18:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 03:18:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 03:18:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 03:18:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 03:18:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 03:18:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:18:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 03:18:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:18:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 03:18:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:18:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-11-17 03:18:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-11-17 03:18:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-11-17 03:18:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-17 03:18:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 03:18:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 03:18:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2021-11-17 03:18:19,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:18:19,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018177000] [2021-11-17 03:18:19,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018177000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:18:19,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:18:19,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 03:18:19,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766469795] [2021-11-17 03:18:19,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:18:19,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 03:18:19,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:18:19,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 03:18:19,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:18:19,874 INFO L87 Difference]: Start difference. First operand 9271 states and 12414 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (52), 7 states have call predecessors, (52), 2 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-17 03:18:21,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:23,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:25,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:27,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:29,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:31,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:18:42,521 INFO L93 Difference]: Finished difference Result 11812 states and 16317 transitions. [2021-11-17 03:18:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 03:18:42,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (52), 7 states have call predecessors, (52), 2 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) Word has length 434 [2021-11-17 03:18:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:18:42,542 INFO L225 Difference]: With dead ends: 11812 [2021-11-17 03:18:42,543 INFO L226 Difference]: Without dead ends: 10529 [2021-11-17 03:18:42,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:18:42,547 INFO L933 BasicCegarLoop]: 2819 mSDtfsCounter, 3079 mSDsluCounter, 12574 mSDsCounter, 0 mSdLazyCounter, 9281 mSolverCounterSat, 3022 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 15393 SdHoareTripleChecker+Invalid, 12307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3022 IncrementalHoareTripleChecker+Valid, 9281 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-17 03:18:42,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 15393 Invalid, 12307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3022 Valid, 9281 Invalid, 4 Unknown, 0 Unchecked, 21.8s Time] [2021-11-17 03:18:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2021-11-17 03:18:42,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 8555. [2021-11-17 03:18:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8555 states, 6019 states have (on average 1.3018773882704768) internal successors, (7836), 6110 states have internal predecessors, (7836), 1806 states have call successors, (1806), 726 states have call predecessors, (1806), 729 states have return successors, (1808), 1798 states have call predecessors, (1808), 1804 states have call successors, (1808) [2021-11-17 03:18:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8555 states to 8555 states and 11450 transitions. [2021-11-17 03:18:42,915 INFO L78 Accepts]: Start accepts. Automaton has 8555 states and 11450 transitions. Word has length 434 [2021-11-17 03:18:42,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:18:42,915 INFO L470 AbstractCegarLoop]: Abstraction has 8555 states and 11450 transitions. [2021-11-17 03:18:42,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (52), 7 states have call predecessors, (52), 2 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-17 03:18:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8555 states and 11450 transitions. [2021-11-17 03:18:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-17 03:18:42,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:18:42,922 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:18:42,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 03:18:42,922 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:18:42,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:18:42,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1329603326, now seen corresponding path program 1 times [2021-11-17 03:18:42,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:18:42,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217306508] [2021-11-17 03:18:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:18:42,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:18:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:18:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:18:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:18:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:18:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:18:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:18:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:18:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:18:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:18:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:18:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:18:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:18:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:18:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:18:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:18:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:18:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:18:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:18:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:18:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:18:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:18:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:18:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:18:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 03:18:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 03:18:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 03:18:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 03:18:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 03:18:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 03:18:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:18:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 03:18:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:18:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-11-17 03:18:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:18:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-11-17 03:18:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-11-17 03:18:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-11-17 03:18:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-17 03:18:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2021-11-17 03:18:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:18:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 03:18:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:18:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2021-11-17 03:18:43,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:18:43,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217306508] [2021-11-17 03:18:43,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217306508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:18:43,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:18:43,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:18:43,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112498593] [2021-11-17 03:18:43,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:18:43,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:18:43,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:18:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:18:43,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:18:43,510 INFO L87 Difference]: Start difference. First operand 8555 states and 11450 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-17 03:18:45,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:47,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:49,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:52,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:18:55,115 WARN L515 Checker$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 03:18:57,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:07,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:19:07,251 INFO L93 Difference]: Finished difference Result 10523 states and 14627 transitions. [2021-11-17 03:19:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 03:19:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 434 [2021-11-17 03:19:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:19:07,279 INFO L225 Difference]: With dead ends: 10523 [2021-11-17 03:19:07,280 INFO L226 Difference]: Without dead ends: 10520 [2021-11-17 03:19:07,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2021-11-17 03:19:07,284 INFO L933 BasicCegarLoop]: 2941 mSDtfsCounter, 3733 mSDsluCounter, 5568 mSDsCounter, 0 mSdLazyCounter, 6557 mSolverCounterSat, 3337 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 8509 SdHoareTripleChecker+Invalid, 9900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3337 IncrementalHoareTripleChecker+Valid, 6557 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:19:07,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3932 Valid, 8509 Invalid, 9900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3337 Valid, 6557 Invalid, 6 Unknown, 0 Unchecked, 22.9s Time] [2021-11-17 03:19:07,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2021-11-17 03:19:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 8554. [2021-11-17 03:19:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8554 states, 6019 states have (on average 1.301212826050839) internal successors, (7832), 6109 states have internal predecessors, (7832), 1805 states have call successors, (1805), 726 states have call predecessors, (1805), 729 states have return successors, (1808), 1798 states have call predecessors, (1808), 1804 states have call successors, (1808) [2021-11-17 03:19:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8554 states to 8554 states and 11445 transitions. [2021-11-17 03:19:07,821 INFO L78 Accepts]: Start accepts. Automaton has 8554 states and 11445 transitions. Word has length 434 [2021-11-17 03:19:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:19:07,822 INFO L470 AbstractCegarLoop]: Abstraction has 8554 states and 11445 transitions. [2021-11-17 03:19:07,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (52), 8 states have call predecessors, (52), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-17 03:19:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand 8554 states and 11445 transitions. [2021-11-17 03:19:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2021-11-17 03:19:07,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:19:07,832 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 03:19:07,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 03:19:07,832 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:19:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:19:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash 402409426, now seen corresponding path program 1 times [2021-11-17 03:19:07,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:19:07,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372720048] [2021-11-17 03:19:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:19:07,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:19:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:19:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:19:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:19:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:19:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:19:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:19:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:19:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:19:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:19:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:19:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:19:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:19:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:19:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:19:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:19:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:19:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:19:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:19:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:19:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:19:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:19:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:19:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:19:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:19:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:19:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:19:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:19:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:19:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 03:19:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 03:19:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 03:19:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-11-17 03:19:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2021-11-17 03:19:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2021-11-17 03:19:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2354 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2021-11-17 03:19:08,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:19:08,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372720048] [2021-11-17 03:19:08,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372720048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:19:08,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:19:08,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:19:08,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771327224] [2021-11-17 03:19:08,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:19:08,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:19:08,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:19:08,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:19:08,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:19:08,366 INFO L87 Difference]: Start difference. First operand 8554 states and 11445 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 03:19:10,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:12,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:14,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:16,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:19,227 WARN L515 Checker$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 03:19:21,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:23,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:30,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:32,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:19:40,471 INFO L93 Difference]: Finished difference Result 24060 states and 33152 transitions. [2021-11-17 03:19:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 03:19:40,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 507 [2021-11-17 03:19:40,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:19:40,531 INFO L225 Difference]: With dead ends: 24060 [2021-11-17 03:19:40,532 INFO L226 Difference]: Without dead ends: 15576 [2021-11-17 03:19:40,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-11-17 03:19:40,552 INFO L933 BasicCegarLoop]: 4389 mSDtfsCounter, 5636 mSDsluCounter, 6165 mSDsCounter, 0 mSdLazyCounter, 9253 mSolverCounterSat, 5027 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6059 SdHoareTripleChecker+Valid, 10554 SdHoareTripleChecker+Invalid, 14289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5027 IncrementalHoareTripleChecker+Valid, 9253 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-11-17 03:19:40,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6059 Valid, 10554 Invalid, 14289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5027 Valid, 9253 Invalid, 9 Unknown, 0 Unchecked, 30.8s Time] [2021-11-17 03:19:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15576 states. [2021-11-17 03:19:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15576 to 12304. [2021-11-17 03:19:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 8686 states have (on average 1.3004835367257657) internal successors, (11296), 8815 states have internal predecessors, (11296), 2530 states have call successors, (2530), 1082 states have call predecessors, (2530), 1087 states have return successors, (2535), 2520 states have call predecessors, (2535), 2529 states have call successors, (2535) [2021-11-17 03:19:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 16361 transitions. [2021-11-17 03:19:41,235 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 16361 transitions. Word has length 507 [2021-11-17 03:19:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:19:41,236 INFO L470 AbstractCegarLoop]: Abstraction has 12304 states and 16361 transitions. [2021-11-17 03:19:41,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (42), 7 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 03:19:41,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 16361 transitions. [2021-11-17 03:19:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2021-11-17 03:19:41,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:19:41,249 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:19:41,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 03:19:41,249 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:19:41,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:19:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1753927160, now seen corresponding path program 1 times [2021-11-17 03:19:41,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:19:41,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803125324] [2021-11-17 03:19:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:19:41,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:19:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:19:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:19:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:19:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:19:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:19:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:19:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:19:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:19:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:19:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:19:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:19:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:19:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:19:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:19:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:19:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:19:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:19:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:19:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:19:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:19:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:19:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:19:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:19:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:19:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:19:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:19:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:19:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:19:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 03:19:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 03:19:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 03:19:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:19:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-11-17 03:19:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:19:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-17 03:19:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-11-17 03:19:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-11-17 03:19:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:19:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2370 trivial. 0 not checked. [2021-11-17 03:19:41,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:19:41,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803125324] [2021-11-17 03:19:41,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803125324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:19:41,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:19:41,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:19:41,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797640328] [2021-11-17 03:19:41,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:19:41,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:19:41,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:19:41,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:19:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:19:41,770 INFO L87 Difference]: Start difference. First operand 12304 states and 16361 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 03:19:43,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:45,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:47,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:50,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:52,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:54,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:56,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:19:58,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:00,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:02,914 WARN L515 Checker$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 03:20:04,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:06,955 WARN L515 Checker$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 03:20:16,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:18,753 WARN L515 Checker$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 03:20:20,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:22,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:24,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:20:38,839 INFO L93 Difference]: Finished difference Result 33697 states and 46326 transitions. [2021-11-17 03:20:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 03:20:38,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 534 [2021-11-17 03:20:38,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:20:38,894 INFO L225 Difference]: With dead ends: 33697 [2021-11-17 03:20:38,895 INFO L226 Difference]: Without dead ends: 21463 [2021-11-17 03:20:38,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2021-11-17 03:20:38,915 INFO L933 BasicCegarLoop]: 5034 mSDtfsCounter, 5390 mSDsluCounter, 12517 mSDsCounter, 0 mSdLazyCounter, 15680 mSolverCounterSat, 4576 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5705 SdHoareTripleChecker+Valid, 17551 SdHoareTripleChecker+Invalid, 20273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4576 IncrementalHoareTripleChecker+Valid, 15680 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.2s IncrementalHoareTripleChecker+Time [2021-11-17 03:20:38,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5705 Valid, 17551 Invalid, 20273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4576 Valid, 15680 Invalid, 17 Unknown, 0 Unchecked, 55.2s Time] [2021-11-17 03:20:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21463 states. [2021-11-17 03:20:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21463 to 12308. [2021-11-17 03:20:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12308 states, 8690 states have (on average 1.3003452243958573) internal successors, (11300), 8819 states have internal predecessors, (11300), 2530 states have call successors, (2530), 1082 states have call predecessors, (2530), 1087 states have return successors, (2535), 2520 states have call predecessors, (2535), 2529 states have call successors, (2535) [2021-11-17 03:20:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12308 states to 12308 states and 16365 transitions. [2021-11-17 03:20:39,642 INFO L78 Accepts]: Start accepts. Automaton has 12308 states and 16365 transitions. Word has length 534 [2021-11-17 03:20:39,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:20:39,642 INFO L470 AbstractCegarLoop]: Abstraction has 12308 states and 16365 transitions. [2021-11-17 03:20:39,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 03:20:39,642 INFO L276 IsEmpty]: Start isEmpty. Operand 12308 states and 16365 transitions. [2021-11-17 03:20:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2021-11-17 03:20:39,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:20:39,655 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:20:39,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 03:20:39,655 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:20:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:20:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1236404103, now seen corresponding path program 1 times [2021-11-17 03:20:39,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:20:39,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173311445] [2021-11-17 03:20:39,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:20:39,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:20:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:20:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:20:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:20:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:20:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:20:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:20:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:20:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:20:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:20:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:20:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:20:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:20:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:20:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:20:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:20:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:20:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:20:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:20:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:20:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:20:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:20:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:20:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:20:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:20:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:20:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:20:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:20:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:20:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 03:20:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 03:20:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 03:20:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:20:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-11-17 03:20:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:20:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-11-17 03:20:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-17 03:20:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2021-11-17 03:20:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2021-11-17 03:20:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:20:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2370 trivial. 0 not checked. [2021-11-17 03:20:40,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:20:40,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173311445] [2021-11-17 03:20:40,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173311445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:20:40,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:20:40,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:20:40,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475324367] [2021-11-17 03:20:40,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:20:40,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:20:40,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:20:40,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:20:40,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:20:40,126 INFO L87 Difference]: Start difference. First operand 12308 states and 16365 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:20:42,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:44,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:20:47,364 WARN L515 Checker$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 03:20:49,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:21:01,203 INFO L93 Difference]: Finished difference Result 31841 states and 43870 transitions. [2021-11-17 03:21:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 03:21:01,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 540 [2021-11-17 03:21:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:21:01,257 INFO L225 Difference]: With dead ends: 31841 [2021-11-17 03:21:01,258 INFO L226 Difference]: Without dead ends: 19603 [2021-11-17 03:21:01,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2021-11-17 03:21:01,281 INFO L933 BasicCegarLoop]: 4219 mSDtfsCounter, 6011 mSDsluCounter, 7090 mSDsCounter, 0 mSdLazyCounter, 8746 mSolverCounterSat, 5871 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6321 SdHoareTripleChecker+Valid, 11309 SdHoareTripleChecker+Invalid, 14621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5871 IncrementalHoareTripleChecker+Valid, 8746 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:21:01,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6321 Valid, 11309 Invalid, 14621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5871 Valid, 8746 Invalid, 4 Unknown, 0 Unchecked, 19.5s Time] [2021-11-17 03:21:01,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19603 states. [2021-11-17 03:21:02,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19603 to 15346. [2021-11-17 03:21:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15346 states, 10831 states have (on average 1.3012648878219923) internal successors, (14094), 10997 states have internal predecessors, (14094), 3181 states have call successors, (3181), 1328 states have call predecessors, (3181), 1333 states have return successors, (3186), 3166 states have call predecessors, (3186), 3180 states have call successors, (3186) [2021-11-17 03:21:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15346 states to 15346 states and 20461 transitions. [2021-11-17 03:21:02,153 INFO L78 Accepts]: Start accepts. Automaton has 15346 states and 20461 transitions. Word has length 540 [2021-11-17 03:21:02,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:21:02,154 INFO L470 AbstractCegarLoop]: Abstraction has 15346 states and 20461 transitions. [2021-11-17 03:21:02,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (45), 8 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:21:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 15346 states and 20461 transitions. [2021-11-17 03:21:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2021-11-17 03:21:02,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:21:02,167 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:02,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 03:21:02,167 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:21:02,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:21:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1569971741, now seen corresponding path program 1 times [2021-11-17 03:21:02,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:21:02,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886595585] [2021-11-17 03:21:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:21:02,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:21:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:21:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:21:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:21:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:21:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:21:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:21:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:21:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:21:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:21:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 03:21:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 03:21:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 03:21:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 03:21:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 03:21:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 03:21:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 03:21:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 03:21:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:21:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-11-17 03:21:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 03:21:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 03:21:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 03:21:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-11-17 03:21:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:21:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:21:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:21:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:21:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:21:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-11-17 03:21:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-11-17 03:21:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 03:21:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:21:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2021-11-17 03:21:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:21:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-11-17 03:21:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2021-11-17 03:21:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2021-11-17 03:21:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-11-17 03:21:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:21:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2384 trivial. 0 not checked. [2021-11-17 03:21:02,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:21:02,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886595585] [2021-11-17 03:21:02,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886595585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:21:02,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:21:02,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:21:02,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088712158] [2021-11-17 03:21:02,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:21:02,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:21:02,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:21:02,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:21:02,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:21:02,673 INFO L87 Difference]: Start difference. First operand 15346 states and 20461 transitions. Second operand has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (45), 9 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:21:04,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:06,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:09,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:11,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:13,720 WARN L515 Checker$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 03:21:15,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:21:24,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:21:24,447 INFO L93 Difference]: Finished difference Result 19592 states and 27553 transitions. [2021-11-17 03:21:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 03:21:24,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (45), 9 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 542 [2021-11-17 03:21:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:21:24,449 INFO L225 Difference]: With dead ends: 19592 [2021-11-17 03:21:24,449 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 03:21:24,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:21:24,478 INFO L933 BasicCegarLoop]: 2745 mSDtfsCounter, 4121 mSDsluCounter, 4938 mSDsCounter, 0 mSdLazyCounter, 6125 mSolverCounterSat, 4162 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 7683 SdHoareTripleChecker+Invalid, 10293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4162 IncrementalHoareTripleChecker+Valid, 6125 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:21:24,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4274 Valid, 7683 Invalid, 10293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4162 Valid, 6125 Invalid, 6 Unknown, 0 Unchecked, 20.4s Time] [2021-11-17 03:21:24,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 03:21:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 03:21:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 03:21:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 03:21:24,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 542 [2021-11-17 03:21:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:21:24,486 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 03:21:24,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (45), 9 states have call predecessors, (45), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:21:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 03:21:24,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 03:21:24,488 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 03:21:24,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 03:21:24,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15