./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--scsi--3w-9xxx.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--scsi--3w-9xxx.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 c9b552a362a9e696d48563826feaca907111a4f22b87ac0d62165b45d307f684 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 04:18:27,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:18:27,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:18:27,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:18:27,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:18:27,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:18:27,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:18:27,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:18:27,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:18:27,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:18:27,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:18:27,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:18:27,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:18:27,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:18:27,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:18:27,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:18:27,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:18:27,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:18:27,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:18:27,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:18:27,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:18:27,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:18:27,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:18:27,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:18:27,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:18:27,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:18:27,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:18:27,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:18:27,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:18:27,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:18:27,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:18:27,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:18:27,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:18:27,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:18:27,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:18:27,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:18:27,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:18:27,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:18:27,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:18:27,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:18:27,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:18:27,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:18:27,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:18:27,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:18:27,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:18:27,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:18:27,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:18:27,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:18:27,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:18:27,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:18:27,775 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:18:27,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:18:27,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:18:27,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:18:27,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:18:27,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:18:27,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:18:27,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:18:27,778 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:18:27,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:18:27,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:18:27,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:18:27,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9b552a362a9e696d48563826feaca907111a4f22b87ac0d62165b45d307f684 [2021-11-17 04:18:27,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:18:27,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:18:27,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:18:27,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:18:27,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:18:27,963 INFO L432 ainManager$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--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-11-17 04:18:28,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf8f4ef3/090c6ee5d7fc4da6bfe22042d06dec06/FLAGc4622652e [2021-11-17 04:18:28,627 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:18:28,628 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--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-11-17 04:18:28,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf8f4ef3/090c6ee5d7fc4da6bfe22042d06dec06/FLAGc4622652e [2021-11-17 04:18:28,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf8f4ef3/090c6ee5d7fc4da6bfe22042d06dec06 [2021-11-17 04:18:28,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:18:28,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:18:28,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:18:28,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:18:28,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:18:28,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:18:28" (1/1) ... [2021-11-17 04:18:28,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b20f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:28, skipping insertion in model container [2021-11-17 04:18:28,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:18:28" (1/1) ... [2021-11-17 04:18:28,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:18:28,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:18:29,956 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--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2021-11-17 04:18:30,052 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:18:30,089 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:18:30,308 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--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2021-11-17 04:18:30,317 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:18:30,408 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:18:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30 WrapperNode [2021-11-17 04:18:30,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:18:30,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:18:30,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:18:30,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:18:30,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,606 INFO L137 Inliner]: procedures = 305, calls = 2532, calls flagged for inlining = 126, calls inlined = 120, statements flattened = 5547 [2021-11-17 04:18:30,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:18:30,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:18:30,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:18:30,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:18:30,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:18:30,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:18:30,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:18:30,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:18:30,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (1/1) ... [2021-11-17 04:18:30,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:18:30,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:18:30,859 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 04:18:30,864 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 04:18:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 04:18:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 04:18:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 04:18:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 04:18:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 04:18:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 04:18:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:18:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:18:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:18:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:18:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 04:18:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 04:18:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 04:18:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 04:18:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure twa_get_request_id [2021-11-17 04:18:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_get_request_id [2021-11-17 04:18:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure twa_fill_sense [2021-11-17 04:18:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_fill_sense [2021-11-17 04:18:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2021-11-17 04:18:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2021-11-17 04:18:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 04:18:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 04:18:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2021-11-17 04:18:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2021-11-17 04:18:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 04:18:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 04:18:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:18:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:18:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_4 [2021-11-17 04:18:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_4 [2021-11-17 04:18:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 04:18:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 04:18:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 04:18:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 04:18:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-17 04:18:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-17 04:18:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure twa_resume [2021-11-17 04:18:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_resume [2021-11-17 04:18:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:18:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:18:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2021-11-17 04:18:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2021-11-17 04:18:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 04:18:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 04:18:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 04:18:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 04:18:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure twa_remove [2021-11-17 04:18:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_remove [2021-11-17 04:18:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:18:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure twa_reset_sequence [2021-11-17 04:18:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_reset_sequence [2021-11-17 04:18:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-17 04:18:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-17 04:18:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:18:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure twa_get_param [2021-11-17 04:18:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_get_param [2021-11-17 04:18:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 04:18:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 04:18:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure twa_string_lookup [2021-11-17 04:18:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_string_lookup [2021-11-17 04:18:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 04:18:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 04:18:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:18:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 04:18:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 04:18:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:18:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure __twa_shutdown [2021-11-17 04:18:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __twa_shutdown [2021-11-17 04:18:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_twa_chrdev_mutex [2021-11-17 04:18:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_twa_chrdev_mutex [2021-11-17 04:18:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-17 04:18:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-17 04:18:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-11-17 04:18:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-11-17 04:18:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure twa_shutdown [2021-11-17 04:18:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_shutdown [2021-11-17 04:18:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure twa_post_command_packet [2021-11-17 04:18:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_post_command_packet [2021-11-17 04:18:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 04:18:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 04:18:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure twa_free_request_id [2021-11-17 04:18:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_free_request_id [2021-11-17 04:18:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-17 04:18:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-17 04:18:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 04:18:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dma_unmap [2021-11-17 04:18:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dma_unmap [2021-11-17 04:18:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure twa_decode_bits [2021-11-17 04:18:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_decode_bits [2021-11-17 04:18:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 04:18:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-17 04:18:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-17 04:18:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:18:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-17 04:18:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-17 04:18:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 04:18:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 04:18:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure pci_try_set_mwi [2021-11-17 04:18:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_try_set_mwi [2021-11-17 04:18:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 04:18:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 04:18:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-17 04:18:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-17 04:18:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure twa_initconnection [2021-11-17 04:18:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_initconnection [2021-11-17 04:18:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 04:18:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 04:18:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 04:18:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 04:18:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 04:18:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-17 04:18:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-17 04:18:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 04:18:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 04:18:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:18:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:18:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ioctl_lock_of_TAG_TW_Device_Extension [2021-11-17 04:18:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ioctl_lock_of_TAG_TW_Device_Extension [2021-11-17 04:18:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msi_exact [2021-11-17 04:18:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msi_exact [2021-11-17 04:18:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure twa_aen_queue_event [2021-11-17 04:18:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_aen_queue_event [2021-11-17 04:18:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:18:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure twa_interrupt [2021-11-17 04:18:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_interrupt [2021-11-17 04:18:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 04:18:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 04:18:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 04:18:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 04:18:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2021-11-17 04:18:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 04:18:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 04:18:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 04:18:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 04:18:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 04:18:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-11-17 04:18:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure twa_allocate_memory [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_allocate_memory [2021-11-17 04:18:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-11-17 04:18:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure twa_poll_response [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_poll_response [2021-11-17 04:18:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-11-17 04:18:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-11-17 04:18:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ioctl_lock_of_TAG_TW_Device_Extension [2021-11-17 04:18:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ioctl_lock_of_TAG_TW_Device_Extension [2021-11-17 04:18:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure twa_scsiop_execute_scsi [2021-11-17 04:18:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_scsiop_execute_scsi [2021-11-17 04:18:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-11-17 04:18:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-11-17 04:18:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure twa_reset_device_extension [2021-11-17 04:18:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_reset_device_extension [2021-11-17 04:18:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure twa_free_device_extension [2021-11-17 04:18:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_free_device_extension [2021-11-17 04:18:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 04:18:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 04:18:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_twa_chrdev_mutex [2021-11-17 04:18:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_twa_chrdev_mutex [2021-11-17 04:18:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure twa_check_bits [2021-11-17 04:18:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_check_bits [2021-11-17 04:18:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-17 04:18:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-17 04:18:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-17 04:18:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 04:18:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 04:18:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 04:18:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure twa_aen_read_queue [2021-11-17 04:18:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure twa_aen_read_queue [2021-11-17 04:18:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:18:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:18:31,563 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:18:31,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:18:31,662 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:18:39,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:18:39,109 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:18:39,109 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:18:39,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:18:39 BoogieIcfgContainer [2021-11-17 04:18:39,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:18:39,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:18:39,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:18:39,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:18:39,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:18:28" (1/3) ... [2021-11-17 04:18:39,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3df026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:18:39, skipping insertion in model container [2021-11-17 04:18:39,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:18:30" (2/3) ... [2021-11-17 04:18:39,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3df026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:18:39, skipping insertion in model container [2021-11-17 04:18:39,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:18:39" (3/3) ... [2021-11-17 04:18:39,120 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2021-11-17 04:18:39,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:18:39,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:18:39,173 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:18:39,178 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 04:18:39,180 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:18:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 1579 states, 1157 states have (on average 1.3785652549697494) internal successors, (1595), 1194 states have internal predecessors, (1595), 338 states have call successors, (338), 83 states have call predecessors, (338), 82 states have return successors, (328), 327 states have call predecessors, (328), 328 states have call successors, (328) [2021-11-17 04:18:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 04:18:39,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:18:39,251 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:18:39,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:18:39,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:18:39,255 INFO L85 PathProgramCache]: Analyzing trace with hash -650807549, now seen corresponding path program 1 times [2021-11-17 04:18:39,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:18:39,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352722708] [2021-11-17 04:18:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:18:39,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:18:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:18:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:18:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:18:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:18:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:18:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:18:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:18:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:18:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:18:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:18:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:18:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:18:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:18:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:18:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-17 04:18:40,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:18:40,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352722708] [2021-11-17 04:18:40,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352722708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:18:40,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:18:40,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:18:40,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791534966] [2021-11-17 04:18:40,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:18:40,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:18:40,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:18:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:18:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:18:40,166 INFO L87 Difference]: Start difference. First operand has 1579 states, 1157 states have (on average 1.3785652549697494) internal successors, (1595), 1194 states have internal predecessors, (1595), 338 states have call successors, (338), 83 states have call predecessors, (338), 82 states have return successors, (328), 327 states have call predecessors, (328), 328 states have call successors, (328) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 04:18:42,229 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 04:18:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:18:44,581 INFO L93 Difference]: Finished difference Result 3308 states and 4863 transitions. [2021-11-17 04:18:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 04:18:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 207 [2021-11-17 04:18:44,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:18:44,613 INFO L225 Difference]: With dead ends: 3308 [2021-11-17 04:18:44,613 INFO L226 Difference]: Without dead ends: 1717 [2021-11-17 04:18:44,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 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 04:18:44,627 INFO L933 BasicCegarLoop]: 2117 mSDtfsCounter, 1325 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 1272 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1272 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:18:44,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3250 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1272 Valid, 711 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-17 04:18:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2021-11-17 04:18:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1562. [2021-11-17 04:18:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1152 states have (on average 1.3689236111111112) internal successors, (1577), 1177 states have internal predecessors, (1577), 328 states have call successors, (328), 82 states have call predecessors, (328), 81 states have return successors, (318), 317 states have call predecessors, (318), 318 states have call successors, (318) [2021-11-17 04:18:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2223 transitions. [2021-11-17 04:18:44,729 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2223 transitions. Word has length 207 [2021-11-17 04:18:44,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:18:44,730 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2223 transitions. [2021-11-17 04:18:44,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 04:18:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2223 transitions. [2021-11-17 04:18:44,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 04:18:44,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:18:44,734 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:18:44,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:18:44,734 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:18:44,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:18:44,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1985613877, now seen corresponding path program 1 times [2021-11-17 04:18:44,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:18:44,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448991482] [2021-11-17 04:18:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:18:44,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:18:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:18:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:18:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:18:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:18:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:18:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:18:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:18:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:18:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:18:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:18:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:18:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:18:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:18:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:18:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-17 04:18:45,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:18:45,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448991482] [2021-11-17 04:18:45,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448991482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:18:45,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:18:45,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:18:45,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009231487] [2021-11-17 04:18:45,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:18:45,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:18:45,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:18:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:18:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:18:45,137 INFO L87 Difference]: Start difference. First operand 1562 states and 2223 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-17 04:18:47,181 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 04:18:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:18:51,763 INFO L93 Difference]: Finished difference Result 4824 states and 7016 transitions. [2021-11-17 04:18:51,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:18:51,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2021-11-17 04:18:51,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:18:51,781 INFO L225 Difference]: With dead ends: 4824 [2021-11-17 04:18:51,781 INFO L226 Difference]: Without dead ends: 3298 [2021-11-17 04:18:51,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 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 04:18:51,788 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 4509 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 2528 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 5326 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2528 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:18:51,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4715 Valid, 5326 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2528 Valid, 1477 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-17 04:18:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2021-11-17 04:18:51,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 2992. [2021-11-17 04:18:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2224 states have (on average 1.3741007194244603) internal successors, (3056), 2266 states have internal predecessors, (3056), 606 states have call successors, (606), 159 states have call predecessors, (606), 161 states have return successors, (632), 592 states have call predecessors, (632), 596 states have call successors, (632) [2021-11-17 04:18:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 4294 transitions. [2021-11-17 04:18:51,866 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 4294 transitions. Word has length 207 [2021-11-17 04:18:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:18:51,868 INFO L470 AbstractCegarLoop]: Abstraction has 2992 states and 4294 transitions. [2021-11-17 04:18:51,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-17 04:18:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 4294 transitions. [2021-11-17 04:18:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 04:18:51,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:18:51,871 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:18:51,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:18:51,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:18:51,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:18:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash 127928896, now seen corresponding path program 1 times [2021-11-17 04:18:51,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:18:51,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044283778] [2021-11-17 04:18:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:18:51,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:18:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:18:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:18:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:18:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:18:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:18:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:18:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:18:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:18:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:18:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:18:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:18:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:18:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:18:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:18:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:18:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:18:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:18:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-17 04:18:52,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:18:52,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044283778] [2021-11-17 04:18:52,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044283778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:18:52,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:18:52,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:18:52,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799910634] [2021-11-17 04:18:52,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:18:52,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:18:52,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:18:52,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:18:52,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:18:52,373 INFO L87 Difference]: Start difference. First operand 2992 states and 4294 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-17 04:18:54,417 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 04:18:56,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:18:58,569 WARN L515 Checker$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 04:19:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:03,884 INFO L93 Difference]: Finished difference Result 9395 states and 13724 transitions. [2021-11-17 04:19:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:19:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 207 [2021-11-17 04:19:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:03,934 INFO L225 Difference]: With dead ends: 9395 [2021-11-17 04:19:03,935 INFO L226 Difference]: Without dead ends: 6439 [2021-11-17 04:19:03,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:19:03,947 INFO L933 BasicCegarLoop]: 2409 mSDtfsCounter, 3671 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 1764 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 4061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1764 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:03,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3901 Valid, 6488 Invalid, 4061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1764 Valid, 2294 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2021-11-17 04:19:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6439 states. [2021-11-17 04:19:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6439 to 5913. [2021-11-17 04:19:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 4406 states have (on average 1.374943259192011) internal successors, (6058), 4481 states have internal predecessors, (6058), 1185 states have call successors, (1185), 316 states have call predecessors, (1185), 321 states have return successors, (1247), 1167 states have call predecessors, (1247), 1175 states have call successors, (1247) [2021-11-17 04:19:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8490 transitions. [2021-11-17 04:19:04,116 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8490 transitions. Word has length 207 [2021-11-17 04:19:04,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:04,118 INFO L470 AbstractCegarLoop]: Abstraction has 5913 states and 8490 transitions. [2021-11-17 04:19:04,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-17 04:19:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8490 transitions. [2021-11-17 04:19:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-17 04:19:04,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:04,122 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:04,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:19:04,122 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:04,123 INFO L85 PathProgramCache]: Analyzing trace with hash 406314375, now seen corresponding path program 1 times [2021-11-17 04:19:04,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:04,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021367484] [2021-11-17 04:19:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 04:19:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-11-17 04:19:04,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:04,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021367484] [2021-11-17 04:19:04,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021367484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:04,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:04,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:04,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540224488] [2021-11-17 04:19:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:04,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:04,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:04,485 INFO L87 Difference]: Start difference. First operand 5913 states and 8490 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:07,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:19:09,465 WARN L515 Checker$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 04:19:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:17,058 INFO L93 Difference]: Finished difference Result 17868 states and 26140 transitions. [2021-11-17 04:19:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:19:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 216 [2021-11-17 04:19:17,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:17,221 INFO L225 Difference]: With dead ends: 17868 [2021-11-17 04:19:17,221 INFO L226 Difference]: Without dead ends: 11991 [2021-11-17 04:19:17,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 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 04:19:17,279 INFO L933 BasicCegarLoop]: 2329 mSDtfsCounter, 3468 mSDsluCounter, 4965 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 1732 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 7294 SdHoareTripleChecker+Invalid, 4659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1732 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:17,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3662 Valid, 7294 Invalid, 4659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1732 Valid, 2925 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2021-11-17 04:19:17,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11991 states. [2021-11-17 04:19:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11991 to 10941. [2021-11-17 04:19:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10941 states, 8134 states have (on average 1.374477501844111) internal successors, (11180), 8277 states have internal predecessors, (11180), 2195 states have call successors, (2195), 598 states have call predecessors, (2195), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-11-17 04:19:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10941 states to 10941 states and 15780 transitions. [2021-11-17 04:19:17,705 INFO L78 Accepts]: Start accepts. Automaton has 10941 states and 15780 transitions. Word has length 216 [2021-11-17 04:19:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:17,705 INFO L470 AbstractCegarLoop]: Abstraction has 10941 states and 15780 transitions. [2021-11-17 04:19:17,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 10941 states and 15780 transitions. [2021-11-17 04:19:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-17 04:19:17,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:17,709 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:17,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:19:17,710 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash 557384795, now seen corresponding path program 1 times [2021-11-17 04:19:17,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:17,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032127793] [2021-11-17 04:19:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:17,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:17,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:19:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:19:18,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:18,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032127793] [2021-11-17 04:19:18,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032127793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:18,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:18,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:18,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482705924] [2021-11-17 04:19:18,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:18,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:18,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:18,073 INFO L87 Difference]: Start difference. First operand 10941 states and 15780 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 04:19:20,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:19:22,174 WARN L515 Checker$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 04:19:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:25,828 INFO L93 Difference]: Finished difference Result 11982 states and 17690 transitions. [2021-11-17 04:19:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 04:19:25,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 227 [2021-11-17 04:19:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:25,887 INFO L225 Difference]: With dead ends: 11982 [2021-11-17 04:19:25,887 INFO L226 Difference]: Without dead ends: 11969 [2021-11-17 04:19:25,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 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 04:19:25,899 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 2920 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 1027 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 4205 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:25,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3132 Valid, 4205 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1027 Valid, 1291 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-17 04:19:25,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11969 states. [2021-11-17 04:19:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11969 to 10941. [2021-11-17 04:19:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10941 states, 8134 states have (on average 1.3739857388738628) internal successors, (11176), 8277 states have internal predecessors, (11176), 2195 states have call successors, (2195), 598 states have call predecessors, (2195), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-11-17 04:19:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10941 states to 10941 states and 15776 transitions. [2021-11-17 04:19:26,309 INFO L78 Accepts]: Start accepts. Automaton has 10941 states and 15776 transitions. Word has length 227 [2021-11-17 04:19:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:26,309 INFO L470 AbstractCegarLoop]: Abstraction has 10941 states and 15776 transitions. [2021-11-17 04:19:26,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-17 04:19:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10941 states and 15776 transitions. [2021-11-17 04:19:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-17 04:19:26,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:26,313 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:26,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:19:26,313 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash 614643097, now seen corresponding path program 1 times [2021-11-17 04:19:26,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:26,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755246502] [2021-11-17 04:19:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:26,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:19:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:19:26,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:26,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755246502] [2021-11-17 04:19:26,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755246502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:26,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:26,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:26,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379860673] [2021-11-17 04:19:26,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:26,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:26,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:26,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:26,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:26,711 INFO L87 Difference]: Start difference. First operand 10941 states and 15776 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:28,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:19:30,853 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:19:32,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:19:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:37,864 INFO L93 Difference]: Finished difference Result 11958 states and 17655 transitions. [2021-11-17 04:19:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:19:37,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 227 [2021-11-17 04:19:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:37,951 INFO L225 Difference]: With dead ends: 11958 [2021-11-17 04:19:37,951 INFO L226 Difference]: Without dead ends: 11955 [2021-11-17 04:19:37,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:19:37,959 INFO L933 BasicCegarLoop]: 2078 mSDtfsCounter, 2874 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 1014 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 5094 SdHoareTripleChecker+Invalid, 2813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1014 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:37,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 5094 Invalid, 2813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1014 Valid, 1797 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2021-11-17 04:19:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11955 states. [2021-11-17 04:19:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11955 to 10940. [2021-11-17 04:19:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10940 states, 8134 states have (on average 1.3738627981313007) internal successors, (11175), 8276 states have internal predecessors, (11175), 2194 states have call successors, (2194), 598 states have call predecessors, (2194), 611 states have return successors, (2405), 2169 states have call predecessors, (2405), 2185 states have call successors, (2405) [2021-11-17 04:19:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10940 states to 10940 states and 15774 transitions. [2021-11-17 04:19:38,289 INFO L78 Accepts]: Start accepts. Automaton has 10940 states and 15774 transitions. Word has length 227 [2021-11-17 04:19:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:38,290 INFO L470 AbstractCegarLoop]: Abstraction has 10940 states and 15774 transitions. [2021-11-17 04:19:38,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 10940 states and 15774 transitions. [2021-11-17 04:19:38,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-17 04:19:38,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:38,292 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:38,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:19:38,292 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:38,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:38,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1873614496, now seen corresponding path program 1 times [2021-11-17 04:19:38,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:38,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614312176] [2021-11-17 04:19:38,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:38,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:19:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:19:38,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:38,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614312176] [2021-11-17 04:19:38,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614312176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:38,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:38,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:38,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195092592] [2021-11-17 04:19:38,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:38,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:38,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:38,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:38,714 INFO L87 Difference]: Start difference. First operand 10940 states and 15774 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:40,781 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 04:19:42,846 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 04:19:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:48,663 INFO L93 Difference]: Finished difference Result 34474 states and 50573 transitions. [2021-11-17 04:19:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:19:48,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 228 [2021-11-17 04:19:48,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:48,829 INFO L225 Difference]: With dead ends: 34474 [2021-11-17 04:19:48,829 INFO L226 Difference]: Without dead ends: 23580 [2021-11-17 04:19:48,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 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 04:19:48,868 INFO L933 BasicCegarLoop]: 2836 mSDtfsCounter, 3694 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 1664 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3917 SdHoareTripleChecker+Valid, 7328 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1664 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:48,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3917 Valid, 7328 Invalid, 4105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1664 Valid, 2439 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-17 04:19:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23580 states. [2021-11-17 04:19:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23580 to 21543. [2021-11-17 04:19:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21543 states, 16052 states have (on average 1.3754672314976326) internal successors, (22079), 16331 states have internal predecessors, (22079), 4297 states have call successors, (4297), 1171 states have call predecessors, (4297), 1193 states have return successors, (4719), 4248 states have call predecessors, (4719), 4287 states have call successors, (4719) [2021-11-17 04:19:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21543 states to 21543 states and 31095 transitions. [2021-11-17 04:19:49,559 INFO L78 Accepts]: Start accepts. Automaton has 21543 states and 31095 transitions. Word has length 228 [2021-11-17 04:19:49,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:49,560 INFO L470 AbstractCegarLoop]: Abstraction has 21543 states and 31095 transitions. [2021-11-17 04:19:49,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:49,560 INFO L276 IsEmpty]: Start isEmpty. Operand 21543 states and 31095 transitions. [2021-11-17 04:19:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-17 04:19:49,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:49,563 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:49,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:19:49,564 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2047940228, now seen corresponding path program 1 times [2021-11-17 04:19:49,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:49,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614950141] [2021-11-17 04:19:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:49,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:49,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:19:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:19:50,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:50,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614950141] [2021-11-17 04:19:50,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614950141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:50,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:50,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:50,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945506633] [2021-11-17 04:19:50,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:50,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:50,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:50,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:50,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:50,169 INFO L87 Difference]: Start difference. First operand 21543 states and 31095 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:52,213 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 04:19:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:19:55,235 INFO L93 Difference]: Finished difference Result 23552 states and 34810 transitions. [2021-11-17 04:19:55,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:19:55,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 229 [2021-11-17 04:19:55,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:19:55,345 INFO L225 Difference]: With dead ends: 23552 [2021-11-17 04:19:55,346 INFO L226 Difference]: Without dead ends: 23549 [2021-11-17 04:19:55,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:19:55,364 INFO L933 BasicCegarLoop]: 2071 mSDtfsCounter, 3347 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1442 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3556 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1442 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:19:55,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3556 Valid, 3190 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1442 Valid, 719 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-17 04:19:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23549 states. [2021-11-17 04:19:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23549 to 21542. [2021-11-17 04:19:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21542 states, 16052 states have (on average 1.375404933964615) internal successors, (22078), 16330 states have internal predecessors, (22078), 4296 states have call successors, (4296), 1171 states have call predecessors, (4296), 1193 states have return successors, (4719), 4248 states have call predecessors, (4719), 4287 states have call successors, (4719) [2021-11-17 04:19:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21542 states to 21542 states and 31093 transitions. [2021-11-17 04:19:56,151 INFO L78 Accepts]: Start accepts. Automaton has 21542 states and 31093 transitions. Word has length 229 [2021-11-17 04:19:56,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:19:56,153 INFO L470 AbstractCegarLoop]: Abstraction has 21542 states and 31093 transitions. [2021-11-17 04:19:56,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:56,153 INFO L276 IsEmpty]: Start isEmpty. Operand 21542 states and 31093 transitions. [2021-11-17 04:19:56,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-17 04:19:56,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:19:56,156 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:19:56,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:19:56,156 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:19:56,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:19:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 937919779, now seen corresponding path program 1 times [2021-11-17 04:19:56,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:19:56,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605094231] [2021-11-17 04:19:56,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:19:56,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:19:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:19:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:19:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:19:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:19:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:19:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:19:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:19:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:19:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:19:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:19:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:19:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:19:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:19:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:19:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:19:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:19:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:19:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:19:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:19:56,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:19:56,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605094231] [2021-11-17 04:19:56,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605094231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:19:56,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:19:56,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:19:56,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365734578] [2021-11-17 04:19:56,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:19:56,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:19:56,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:19:56,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:19:56,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:19:56,548 INFO L87 Difference]: Start difference. First operand 21542 states and 31093 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:19:58,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:20:01,676 INFO L93 Difference]: Finished difference Result 23551 states and 34808 transitions. [2021-11-17 04:20:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:20:01,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 230 [2021-11-17 04:20:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:20:01,835 INFO L225 Difference]: With dead ends: 23551 [2021-11-17 04:20:01,835 INFO L226 Difference]: Without dead ends: 23548 [2021-11-17 04:20:01,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:20:01,854 INFO L933 BasicCegarLoop]: 2073 mSDtfsCounter, 3339 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1439 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3548 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:20:01,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3548 Valid, 3190 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 719 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-17 04:20:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23548 states. [2021-11-17 04:20:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23548 to 21541. [2021-11-17 04:20:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21541 states, 16052 states have (on average 1.3753426364315973) internal successors, (22077), 16329 states have internal predecessors, (22077), 4295 states have call successors, (4295), 1171 states have call predecessors, (4295), 1193 states have return successors, (4719), 4248 states have call predecessors, (4719), 4287 states have call successors, (4719) [2021-11-17 04:20:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21541 states to 21541 states and 31091 transitions. [2021-11-17 04:20:02,650 INFO L78 Accepts]: Start accepts. Automaton has 21541 states and 31091 transitions. Word has length 230 [2021-11-17 04:20:02,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:20:02,651 INFO L470 AbstractCegarLoop]: Abstraction has 21541 states and 31091 transitions. [2021-11-17 04:20:02,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:20:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 21541 states and 31091 transitions. [2021-11-17 04:20:02,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-17 04:20:02,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:20:02,654 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:20:02,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:20:02,654 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:20:02,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:20:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash -989695649, now seen corresponding path program 1 times [2021-11-17 04:20:02,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:20:02,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963773927] [2021-11-17 04:20:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:20:02,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:20:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:20:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:20:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:20:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:20:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:20:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:20:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:20:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:20:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:20:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:20:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:20:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:20:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:20:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:20:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:20:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 04:20:02,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:20:02,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963773927] [2021-11-17 04:20:02,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963773927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:20:02,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:20:02,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:20:02,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700640090] [2021-11-17 04:20:02,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:20:02,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:20:02,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:20:02,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:20:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:20:02,992 INFO L87 Difference]: Start difference. First operand 21541 states and 31091 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:20:05,035 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 04:20:07,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:11,566 WARN L515 Checker$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 04:20:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:20:14,491 INFO L93 Difference]: Finished difference Result 30741 states and 44832 transitions. [2021-11-17 04:20:14,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:20:14,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 231 [2021-11-17 04:20:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:20:14,630 INFO L225 Difference]: With dead ends: 30741 [2021-11-17 04:20:14,630 INFO L226 Difference]: Without dead ends: 30728 [2021-11-17 04:20:14,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 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 04:20:14,655 INFO L933 BasicCegarLoop]: 2142 mSDtfsCounter, 3153 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 1308 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 4972 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1308 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:20:14,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3343 Valid, 4972 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1308 Valid, 1774 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2021-11-17 04:20:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30728 states. [2021-11-17 04:20:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30728 to 26040. [2021-11-17 04:20:15,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26040 states, 19401 states have (on average 1.3723519406216174) internal successors, (26625), 19719 states have internal predecessors, (26625), 5056 states have call successors, (5056), 1560 states have call predecessors, (5056), 1582 states have return successors, (5488), 5001 states have call predecessors, (5488), 5050 states have call successors, (5488) [2021-11-17 04:20:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26040 states to 26040 states and 37169 transitions. [2021-11-17 04:20:15,628 INFO L78 Accepts]: Start accepts. Automaton has 26040 states and 37169 transitions. Word has length 231 [2021-11-17 04:20:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:20:15,629 INFO L470 AbstractCegarLoop]: Abstraction has 26040 states and 37169 transitions. [2021-11-17 04:20:15,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:20:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 26040 states and 37169 transitions. [2021-11-17 04:20:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-17 04:20:15,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:20:15,644 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 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] [2021-11-17 04:20:15,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:20:15,644 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:20:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:20:15,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1136586778, now seen corresponding path program 1 times [2021-11-17 04:20:15,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:20:15,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797256935] [2021-11-17 04:20:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:20:15,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:20:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:20:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:20:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:20:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:20:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:20:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:20:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:20:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:20:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:20:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:20:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:20:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:20:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:20:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:20:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 04:20:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:20:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-17 04:20:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 04:20:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:20:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 04:20:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-17 04:20:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:20:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 04:20:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 04:20:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 04:20:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 04:20:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:20:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:20:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:20:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:20:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:20:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2021-11-17 04:20:16,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:20:16,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797256935] [2021-11-17 04:20:16,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797256935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:20:16,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:20:16,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:20:16,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843866725] [2021-11-17 04:20:16,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:20:16,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:20:16,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:20:16,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:20:16,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:20:16,155 INFO L87 Difference]: Start difference. First operand 26040 states and 37169 transitions. Second operand has 11 states, 10 states have (on average 13.3) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (39), 10 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 04:20:18,203 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:20,285 WARN L515 Checker$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 04:20:22,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:24,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:26,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:28,566 WARN L515 Checker$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 04:20:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:20:46,113 INFO L93 Difference]: Finished difference Result 77223 states and 112075 transitions. [2021-11-17 04:20:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-17 04:20:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.3) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (39), 10 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) Word has length 343 [2021-11-17 04:20:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:20:46,363 INFO L225 Difference]: With dead ends: 77223 [2021-11-17 04:20:46,364 INFO L226 Difference]: Without dead ends: 51229 [2021-11-17 04:20:46,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-11-17 04:20:46,461 INFO L933 BasicCegarLoop]: 2728 mSDtfsCounter, 5356 mSDsluCounter, 5755 mSDsCounter, 0 mSdLazyCounter, 9296 mSolverCounterSat, 3666 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5586 SdHoareTripleChecker+Valid, 8483 SdHoareTripleChecker+Invalid, 12968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3666 IncrementalHoareTripleChecker+Valid, 9296 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:20:46,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5586 Valid, 8483 Invalid, 12968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3666 Valid, 9296 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2021-11-17 04:20:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51229 states. [2021-11-17 04:20:48,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51229 to 42758. [2021-11-17 04:20:48,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42758 states, 31873 states have (on average 1.3689643271734697) internal successors, (43633), 32321 states have internal predecessors, (43633), 8206 states have call successors, (8206), 2624 states have call predecessors, (8206), 2678 states have return successors, (9028), 8147 states have call predecessors, (9028), 8200 states have call successors, (9028) [2021-11-17 04:20:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42758 states to 42758 states and 60867 transitions. [2021-11-17 04:20:48,471 INFO L78 Accepts]: Start accepts. Automaton has 42758 states and 60867 transitions. Word has length 343 [2021-11-17 04:20:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:20:48,472 INFO L470 AbstractCegarLoop]: Abstraction has 42758 states and 60867 transitions. [2021-11-17 04:20:48,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.3) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (39), 10 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 04:20:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 42758 states and 60867 transitions. [2021-11-17 04:20:48,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-17 04:20:48,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:20:48,499 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2021-11-17 04:20:48,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 04:20:48,500 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:20:48,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:20:48,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1794780777, now seen corresponding path program 1 times [2021-11-17 04:20:48,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:20:48,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632043304] [2021-11-17 04:20:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:20:48,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:20:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:20:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:20:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:20:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:20:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:20:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:20:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:20:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:20:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:20:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:20:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:20:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:20:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:20:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:20:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:20:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:20:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:20:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:20:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:20:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:20:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:20:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:20:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:20:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:20:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:20:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:20:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:20:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:20:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:20:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:20:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:20:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:20:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:20:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:20:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:20:49,073 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-17 04:20:49,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:20:49,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632043304] [2021-11-17 04:20:49,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632043304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:20:49,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:20:49,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:20:49,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527044134] [2021-11-17 04:20:49,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:20:49,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:20:49,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:20:49,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:20:49,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:20:49,076 INFO L87 Difference]: Start difference. First operand 42758 states and 60867 transitions. Second operand has 11 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 10 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 04:20:51,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:53,212 WARN L515 Checker$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 04:20:54,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:56,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:20:58,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:21:00,859 WARN L515 Checker$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 04:21:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:21:16,009 INFO L93 Difference]: Finished difference Result 98120 states and 143810 transitions. [2021-11-17 04:21:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 04:21:16,009 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 10 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 374 [2021-11-17 04:21:16,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:21:16,282 INFO L225 Difference]: With dead ends: 98120 [2021-11-17 04:21:16,282 INFO L226 Difference]: Without dead ends: 55408 [2021-11-17 04:21:16,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-17 04:21:16,412 INFO L933 BasicCegarLoop]: 2377 mSDtfsCounter, 2675 mSDsluCounter, 6182 mSDsCounter, 0 mSdLazyCounter, 7207 mSolverCounterSat, 1607 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2933 SdHoareTripleChecker+Valid, 8559 SdHoareTripleChecker+Invalid, 8819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 7207 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:21:16,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2933 Valid, 8559 Invalid, 8819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1607 Valid, 7207 Invalid, 5 Unknown, 0 Unchecked, 24.5s Time] [2021-11-17 04:21:16,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55408 states. [2021-11-17 04:21:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55408 to 42758. [2021-11-17 04:21:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42758 states, 31873 states have (on average 1.3674583503278637) internal successors, (43585), 32321 states have internal predecessors, (43585), 8206 states have call successors, (8206), 2624 states have call predecessors, (8206), 2678 states have return successors, (9028), 8147 states have call predecessors, (9028), 8200 states have call successors, (9028) [2021-11-17 04:21:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42758 states to 42758 states and 60819 transitions. [2021-11-17 04:21:18,721 INFO L78 Accepts]: Start accepts. Automaton has 42758 states and 60819 transitions. Word has length 374 [2021-11-17 04:21:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:21:18,722 INFO L470 AbstractCegarLoop]: Abstraction has 42758 states and 60819 transitions. [2021-11-17 04:21:18,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (40), 10 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 04:21:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 42758 states and 60819 transitions. [2021-11-17 04:21:18,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-17 04:21:18,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:21:18,749 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2021-11-17 04:21:18,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 04:21:18,749 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:21:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:21:18,749 INFO L85 PathProgramCache]: Analyzing trace with hash 621055573, now seen corresponding path program 1 times [2021-11-17 04:21:18,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:21:18,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125116421] [2021-11-17 04:21:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:18,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:21:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:21:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:21:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:21:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:21:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:21:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:21:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:21:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:21:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:21:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:21:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:21:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:21:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:21:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:21:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:21:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:21:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:21:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:21:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:21:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:21:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:21:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:21:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:21:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:21:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:21:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:21:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:21:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:21:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:21:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:21:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:21:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:21:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2021-11-17 04:21:19,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:21:19,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125116421] [2021-11-17 04:21:19,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125116421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:21:19,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:21:19,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:21:19,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921089825] [2021-11-17 04:21:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:21:19,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:21:19,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:21:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:21:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:21:19,250 INFO L87 Difference]: Start difference. First operand 42758 states and 60819 transitions. Second operand has 11 states, 10 states have (on average 14.3) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (40), 10 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 04:21:21,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:21:23,382 WARN L515 Checker$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 04:21:24,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:21:25,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:21:27,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:21:29,784 WARN L515 Checker$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 04:21:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:21:41,479 INFO L93 Difference]: Finished difference Result 91984 states and 132951 transitions. [2021-11-17 04:21:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 04:21:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.3) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (40), 10 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 374 [2021-11-17 04:21:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:21:41,736 INFO L225 Difference]: With dead ends: 91984 [2021-11-17 04:21:41,737 INFO L226 Difference]: Without dead ends: 49272 [2021-11-17 04:21:41,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-11-17 04:21:41,833 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 2864 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 6526 mSolverCounterSat, 2291 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 8821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2291 IncrementalHoareTripleChecker+Valid, 6526 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:21:41,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2992 Valid, 6460 Invalid, 8821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2291 Valid, 6526 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2021-11-17 04:21:41,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49272 states. [2021-11-17 04:21:43,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49272 to 42807. [2021-11-17 04:21:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42807 states, 31922 states have (on average 1.3668943048681161) internal successors, (43634), 32370 states have internal predecessors, (43634), 8206 states have call successors, (8206), 2624 states have call predecessors, (8206), 2678 states have return successors, (9028), 8147 states have call predecessors, (9028), 8200 states have call successors, (9028) [2021-11-17 04:21:43,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42807 states to 42807 states and 60868 transitions. [2021-11-17 04:21:43,681 INFO L78 Accepts]: Start accepts. Automaton has 42807 states and 60868 transitions. Word has length 374 [2021-11-17 04:21:43,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:21:43,682 INFO L470 AbstractCegarLoop]: Abstraction has 42807 states and 60868 transitions. [2021-11-17 04:21:43,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.3) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (40), 10 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-17 04:21:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 42807 states and 60868 transitions. [2021-11-17 04:21:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-17 04:21:43,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:21:43,706 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-11-17 04:21:43,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 04:21:43,707 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:21:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:21:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2093683110, now seen corresponding path program 1 times [2021-11-17 04:21:43,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:21:43,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904615399] [2021-11-17 04:21:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:43,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:21:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:21:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:21:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:21:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:21:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:21:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:21:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:21:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:21:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:21:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:21:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:21:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:21:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:21:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:43,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:21:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:21:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:21:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:21:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:21:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:21:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:21:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:21:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:21:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:21:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:21:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:21:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:21:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:21:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:21:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:21:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:21:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 04:21:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 04:21:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2021-11-17 04:21:44,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:21:44,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904615399] [2021-11-17 04:21:44,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904615399] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:21:44,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115432870] [2021-11-17 04:21:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:44,190 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:21:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:21:44,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 04:21:44,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 04:21:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:45,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 5580 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 04:21:45,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:21:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2021-11-17 04:21:45,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 04:21:45,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115432870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:21:45,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 04:21:45,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-11-17 04:21:45,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250506640] [2021-11-17 04:21:45,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:21:45,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 04:21:45,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:21:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 04:21:45,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:21:45,804 INFO L87 Difference]: Start difference. First operand 42807 states and 60868 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2021-11-17 04:21:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:21:47,551 INFO L93 Difference]: Finished difference Result 90092 states and 129158 transitions. [2021-11-17 04:21:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 04:21:47,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 383 [2021-11-17 04:21:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:21:47,756 INFO L225 Difference]: With dead ends: 90092 [2021-11-17 04:21:47,756 INFO L226 Difference]: Without dead ends: 47331 [2021-11-17 04:21:47,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:21:47,870 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 134 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:21:47,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 4454 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 04:21:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47331 states. [2021-11-17 04:21:49,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47331 to 42846. [2021-11-17 04:21:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42846 states, 31961 states have (on average 1.36644660680204) internal successors, (43673), 32409 states have internal predecessors, (43673), 8206 states have call successors, (8206), 2624 states have call predecessors, (8206), 2678 states have return successors, (9028), 8147 states have call predecessors, (9028), 8200 states have call successors, (9028) [2021-11-17 04:21:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42846 states to 42846 states and 60907 transitions. [2021-11-17 04:21:49,861 INFO L78 Accepts]: Start accepts. Automaton has 42846 states and 60907 transitions. Word has length 383 [2021-11-17 04:21:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:21:49,862 INFO L470 AbstractCegarLoop]: Abstraction has 42846 states and 60907 transitions. [2021-11-17 04:21:49,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2021-11-17 04:21:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 42846 states and 60907 transitions. [2021-11-17 04:21:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-17 04:21:49,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:21:49,886 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:21:49,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 04:21:50,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-17 04:21:50,100 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:21:50,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:21:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -905185705, now seen corresponding path program 1 times [2021-11-17 04:21:50,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:21:50,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269564624] [2021-11-17 04:21:50,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:50,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:21:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:21:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:21:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:21:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:21:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:21:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:21:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:21:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:21:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:21:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:21:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:21:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:21:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:21:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:21:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:21:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:21:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:21:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:21:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:21:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:21:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:21:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:21:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:21:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:21:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:21:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:21:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:21:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:21:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:21:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:21:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 04:21:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 04:21:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 04:21:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-17 04:21:50,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:21:50,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269564624] [2021-11-17 04:21:50,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269564624] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:21:50,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754449557] [2021-11-17 04:21:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:50,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:21:50,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:21:50,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 04:21:50,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 04:21:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:51,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 5640 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 04:21:51,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:21:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-11-17 04:21:52,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 04:21:52,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754449557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:21:52,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 04:21:52,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2021-11-17 04:21:52,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250720720] [2021-11-17 04:21:52,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:21:52,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:21:52,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:21:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:21:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-17 04:21:52,836 INFO L87 Difference]: Start difference. First operand 42846 states and 60907 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 04:21:54,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:21:54,802 INFO L93 Difference]: Finished difference Result 94160 states and 135626 transitions. [2021-11-17 04:21:54,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 04:21:54,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 396 [2021-11-17 04:21:54,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:21:55,012 INFO L225 Difference]: With dead ends: 94160 [2021-11-17 04:21:55,012 INFO L226 Difference]: Without dead ends: 51360 [2021-11-17 04:21:55,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-11-17 04:21:55,145 INFO L933 BasicCegarLoop]: 3007 mSDtfsCounter, 590 mSDsluCounter, 11333 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 14340 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:21:55,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 14340 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 04:21:55,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51360 states. [2021-11-17 04:21:56,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51360 to 42926. [2021-11-17 04:21:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42926 states, 32025 states have (on average 1.3657142857142857) internal successors, (43737), 32473 states have internal predecessors, (43737), 8206 states have call successors, (8206), 2624 states have call predecessors, (8206), 2694 states have return successors, (9092), 8163 states have call predecessors, (9092), 8200 states have call successors, (9092) [2021-11-17 04:21:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42926 states to 42926 states and 61035 transitions. [2021-11-17 04:21:57,193 INFO L78 Accepts]: Start accepts. Automaton has 42926 states and 61035 transitions. Word has length 396 [2021-11-17 04:21:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:21:57,193 INFO L470 AbstractCegarLoop]: Abstraction has 42926 states and 61035 transitions. [2021-11-17 04:21:57,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 04:21:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 42926 states and 61035 transitions. [2021-11-17 04:21:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-17 04:21:57,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:21:57,215 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:21:57,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 04:21:57,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-17 04:21:57,424 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:21:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:21:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1601911769, now seen corresponding path program 1 times [2021-11-17 04:21:57,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:21:57,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159096912] [2021-11-17 04:21:57,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:57,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:21:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:21:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:21:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:21:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:21:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:21:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:21:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:21:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:21:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:21:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:21:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:21:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:21:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:21:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:21:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:21:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:21:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:21:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:21:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:21:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:21:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:21:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:21:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:21:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:21:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:21:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:21:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:21:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:21:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:21:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:21:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:21:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:21:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 04:21:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 04:21:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 04:21:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-17 04:21:58,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:21:58,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159096912] [2021-11-17 04:21:58,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159096912] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:21:58,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514490437] [2021-11-17 04:21:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:21:58,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:21:58,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:21:58,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 04:21:58,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 04:21:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:21:59,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 5642 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 04:21:59,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:21:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-11-17 04:21:59,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 04:21:59,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514490437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:21:59,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 04:21:59,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-11-17 04:21:59,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248457106] [2021-11-17 04:21:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:21:59,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:21:59,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:21:59,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:21:59,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:21:59,639 INFO L87 Difference]: Start difference. First operand 42926 states and 61035 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-17 04:22:01,683 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 04:22:05,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:22:05,428 INFO L93 Difference]: Finished difference Result 128782 states and 183113 transitions. [2021-11-17 04:22:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:22:05,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 396 [2021-11-17 04:22:05,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:22:05,832 INFO L225 Difference]: With dead ends: 128782 [2021-11-17 04:22:05,832 INFO L226 Difference]: Without dead ends: 85902 [2021-11-17 04:22:05,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-17 04:22:05,979 INFO L933 BasicCegarLoop]: 3857 mSDtfsCounter, 2953 mSDsluCounter, 9111 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 261 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 12968 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:22:05,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2954 Valid, 12968 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 04:22:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85902 states. [2021-11-17 04:22:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85902 to 83830. [2021-11-17 04:22:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83830 states, 62505 states have (on average 1.3656027517798577) internal successors, (85357), 63421 states have internal predecessors, (85357), 16074 states have call successors, (16074), 5108 states have call predecessors, (16074), 5250 states have return successors, (17844), 15959 states have call predecessors, (17844), 16068 states have call successors, (17844) [2021-11-17 04:22:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83830 states to 83830 states and 119275 transitions. [2021-11-17 04:22:10,070 INFO L78 Accepts]: Start accepts. Automaton has 83830 states and 119275 transitions. Word has length 396 [2021-11-17 04:22:10,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:22:10,071 INFO L470 AbstractCegarLoop]: Abstraction has 83830 states and 119275 transitions. [2021-11-17 04:22:10,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-17 04:22:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 83830 states and 119275 transitions. [2021-11-17 04:22:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-11-17 04:22:10,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:22:10,115 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:22:10,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 04:22:10,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:22:10,332 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:22:10,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:22:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash -304491497, now seen corresponding path program 1 times [2021-11-17 04:22:10,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:22:10,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572005126] [2021-11-17 04:22:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:22:10,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:22:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:22:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:22:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:22:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:22:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:22:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:22:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:22:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:22:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:22:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:22:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:22:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:22:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:22:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:22:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:22:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:22:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:22:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:22:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:22:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:22:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:22:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:22:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:22:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:22:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:22:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:22:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:22:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:22:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:22:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:22:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 04:22:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 04:22:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 04:22:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-17 04:22:11,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:22:11,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572005126] [2021-11-17 04:22:11,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572005126] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:22:11,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087586669] [2021-11-17 04:22:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:22:11,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:22:11,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:22:11,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 04:22:11,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 04:22:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:12,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 5637 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 04:22:12,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:22:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2021-11-17 04:22:12,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 04:22:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-17 04:22:13,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087586669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 04:22:13,487 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 04:22:13,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 14 [2021-11-17 04:22:13,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555593415] [2021-11-17 04:22:13,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 04:22:13,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 04:22:13,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:22:13,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 04:22:13,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:22:13,489 INFO L87 Difference]: Start difference. First operand 83830 states and 119275 transitions. Second operand has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (69), 10 states have call predecessors, (69), 2 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 04:22:15,534 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 04:22:17,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:22:19,639 WARN L515 Checker$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 04:22:21,691 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 04:22:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:22:36,706 INFO L93 Difference]: Finished difference Result 182817 states and 264827 transitions. [2021-11-17 04:22:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-17 04:22:36,706 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (69), 10 states have call predecessors, (69), 2 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) Word has length 396 [2021-11-17 04:22:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:22:37,302 INFO L225 Difference]: With dead ends: 182817 [2021-11-17 04:22:37,303 INFO L226 Difference]: Without dead ends: 99033 [2021-11-17 04:22:37,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 906 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=277, Invalid=715, Unknown=0, NotChecked=0, Total=992 [2021-11-17 04:22:37,665 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 2856 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 6330 mSolverCounterSat, 2065 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2982 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 8399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2065 IncrementalHoareTripleChecker+Valid, 6330 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:22:37,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2982 Valid, 6374 Invalid, 8399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2065 Valid, 6330 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2021-11-17 04:22:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99033 states. [2021-11-17 04:22:41,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99033 to 86083. [2021-11-17 04:22:41,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86083 states, 64454 states have (on average 1.3639805132342446) internal successors, (87914), 65345 states have internal predecessors, (87914), 16378 states have call successors, (16378), 5108 states have call predecessors, (16378), 5250 states have return successors, (18317), 16288 states have call predecessors, (18317), 16372 states have call successors, (18317) [2021-11-17 04:22:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86083 states to 86083 states and 122609 transitions. [2021-11-17 04:22:41,969 INFO L78 Accepts]: Start accepts. Automaton has 86083 states and 122609 transitions. Word has length 396 [2021-11-17 04:22:41,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:22:41,970 INFO L470 AbstractCegarLoop]: Abstraction has 86083 states and 122609 transitions. [2021-11-17 04:22:41,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (69), 10 states have call predecessors, (69), 2 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-17 04:22:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 86083 states and 122609 transitions. [2021-11-17 04:22:42,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-17 04:22:42,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:22:42,237 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:22:42,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 04:22:42,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-17 04:22:42,464 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:22:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:22:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash -544358632, now seen corresponding path program 2 times [2021-11-17 04:22:42,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:22:42,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411143694] [2021-11-17 04:22:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:22:42,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:22:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:22:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:22:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:22:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:22:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:22:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:22:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:22:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:22:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:22:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:22:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:22:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 04:22:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 04:22:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 04:22:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 04:22:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:22:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 04:22:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 04:22:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 04:22:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:22:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 04:22:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:22:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-17 04:22:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:22:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 04:22:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 04:22:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:22:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:22:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:22:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 04:22:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:22:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:22:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 04:22:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:42,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 04:22:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 04:22:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:22:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-11-17 04:22:43,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:22:43,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411143694] [2021-11-17 04:22:43,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411143694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:22:43,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:22:43,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 04:22:43,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490006958] [2021-11-17 04:22:43,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:22:43,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 04:22:43,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:22:43,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 04:22:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:22:43,021 INFO L87 Difference]: Start difference. First operand 86083 states and 122609 transitions. Second operand has 13 states, 12 states have (on average 13.416666666666666) internal successors, (161), 5 states have internal predecessors, (161), 3 states have call successors, (41), 10 states have call predecessors, (41), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-17 04:22:45,069 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 04:22:47,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:22:49,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []