./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-43_2a-drivers--net--ethernet--3com--3c589_cs.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-43_2a-drivers--net--ethernet--3com--3c589_cs.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 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:04:15,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:04:15,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:04:15,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:04:15,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:04:15,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:04:15,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:04:15,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:04:15,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:04:15,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:04:15,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:04:15,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:04:15,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:04:15,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:04:15,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:04:15,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:04:15,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:04:15,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:04:15,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:04:15,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:04:15,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:04:15,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:04:15,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:04:15,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:04:15,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:04:15,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:04:15,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:04:15,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:04:15,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:04:15,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:04:15,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:04:15,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:04:15,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:04:15,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:04:15,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:04:15,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:04:15,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:04:15,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:04:15,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:04:15,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:04:15,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:04:15,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:04:15,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:04:15,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:04:15,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:04:15,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:04:15,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:04:15,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:04:15,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:04:15,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:04:15,822 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:04:15,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:04:15,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:04:15,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:04:15,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:04:15,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:04:15,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:04:15,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:04:15,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:04:15,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:04:15,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:04:15,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:04:15,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:04:15,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2021-11-17 05:04:16,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:04:16,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:04:16,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:04:16,033 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:04:16,044 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:04:16,045 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-17 05:04:16,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c2cf7e2/dda5cb0953e047408ff14324fd6fc5e0/FLAGcd13f8e21 [2021-11-17 05:04:16,681 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:04:16,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-17 05:04:16,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c2cf7e2/dda5cb0953e047408ff14324fd6fc5e0/FLAGcd13f8e21 [2021-11-17 05:04:17,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c2cf7e2/dda5cb0953e047408ff14324fd6fc5e0 [2021-11-17 05:04:17,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:04:17,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:04:17,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:04:17,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:04:17,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:04:17,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:04:17" (1/1) ... [2021-11-17 05:04:17,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeac769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:17, skipping insertion in model container [2021-11-17 05:04:17,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:04:17" (1/1) ... [2021-11-17 05:04:17,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:04:17,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:04:18,207 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-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-17 05:04:18,241 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:04:18,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:04:18,488 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-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2021-11-17 05:04:18,502 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:04:18,597 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:04:18,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18 WrapperNode [2021-11-17 05:04:18,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:04:18,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:04:18,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:04:18,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:04:18,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,758 INFO L137 Inliner]: procedures = 176, calls = 1181, calls flagged for inlining = 84, calls inlined = 81, statements flattened = 2534 [2021-11-17 05:04:18,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:04:18,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:04:18,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:04:18,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:04:18,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:04:18,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:04:18,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:04:18,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:04:18,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (1/1) ... [2021-11-17 05:04:18,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:04:18,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:04:18,944 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 05:04:18,954 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 05:04:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure el3_config [2021-11-17 05:04:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_config [2021-11-17 05:04:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:04:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:04:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:04:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:04:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:04:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-17 05:04:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-17 05:04:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-17 05:04:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-17 05:04:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:04:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:04:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 05:04:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 05:04:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:04:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:04:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:04:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:04:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-17 05:04:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-17 05:04:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 05:04:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 05:04:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:04:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-17 05:04:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-17 05:04:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:04:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:04:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:04:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:04:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:04:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:04:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:04:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:04:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:04:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:04:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:04:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_reset [2021-11-17 05:04:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_reset [2021-11-17 05:04:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:04:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-17 05:04:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-17 05:04:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_present [2021-11-17 05:04:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_present [2021-11-17 05:04:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:04:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:04:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-17 05:04:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-17 05:04:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure el3_rx [2021-11-17 05:04:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_rx [2021-11-17 05:04:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-17 05:04:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-17 05:04:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:04:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 05:04:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 05:04:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 05:04:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 05:04:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_set_xcvr [2021-11-17 05:04:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_set_xcvr [2021-11-17 05:04:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_release [2021-11-17 05:04:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_release [2021-11-17 05:04:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-17 05:04:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-17 05:04:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 05:04:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 05:04:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 05:04:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 05:04:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure el3_get_stats [2021-11-17 05:04:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_get_stats [2021-11-17 05:04:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 05:04:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 05:04:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_detach [2021-11-17 05:04:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_detach [2021-11-17 05:04:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_wait_for_completion [2021-11-17 05:04:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_wait_for_completion [2021-11-17 05:04:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:04:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:04:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-17 05:04:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-17 05:04:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 05:04:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 05:04:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 05:04:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 05:04:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-11-17 05:04:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-11-17 05:04:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-17 05:04:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-17 05:04:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 05:04:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 05:04:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 05:04:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 05:04:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:04:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:04:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure pop_tx_status [2021-11-17 05:04:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pop_tx_status [2021-11-17 05:04:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:04:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-11-17 05:04:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-11-17 05:04:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:04:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:04:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure el3_tx_timeout [2021-11-17 05:04:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_tx_timeout [2021-11-17 05:04:19,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:04:19,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:04:19,712 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:04:24,839 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:04:24,855 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:04:24,855 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 05:04:24,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:04:24 BoogieIcfgContainer [2021-11-17 05:04:24,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:04:24,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:04:24,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:04:24,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:04:24,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:04:17" (1/3) ... [2021-11-17 05:04:24,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e76ed7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:04:24, skipping insertion in model container [2021-11-17 05:04:24,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:04:18" (2/3) ... [2021-11-17 05:04:24,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e76ed7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:04:24, skipping insertion in model container [2021-11-17 05:04:24,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:04:24" (3/3) ... [2021-11-17 05:04:24,867 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2021-11-17 05:04:24,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:04:24,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:04:24,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:04:24,923 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 05:04:24,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:04:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 876 states, 593 states have (on average 1.3709949409780775) internal successors, (813), 631 states have internal predecessors, (813), 237 states have call successors, (237), 45 states have call predecessors, (237), 44 states have return successors, (231), 222 states have call predecessors, (231), 231 states have call successors, (231) [2021-11-17 05:04:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-17 05:04:24,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:04:24,991 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:04:24,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:04:24,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:04:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash -877321201, now seen corresponding path program 1 times [2021-11-17 05:04:25,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:04:25,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117847755] [2021-11-17 05:04:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:04:25,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:04:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:04:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:04:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:04:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:04:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:04:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:04:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 05:04:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 05:04:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:04:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 05:04:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 05:04:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 05:04:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 05:04:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 05:04:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 05:04:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 05:04:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 05:04:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 05:04:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 05:04:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-17 05:04:25,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:04:25,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117847755] [2021-11-17 05:04:25,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117847755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:04:25,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:04:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 05:04:25,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923564080] [2021-11-17 05:04:25,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:04:25,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 05:04:25,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:04:25,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 05:04:25,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-17 05:04:25,752 INFO L87 Difference]: Start difference. First operand has 876 states, 593 states have (on average 1.3709949409780775) internal successors, (813), 631 states have internal predecessors, (813), 237 states have call successors, (237), 45 states have call predecessors, (237), 44 states have return successors, (231), 222 states have call predecessors, (231), 231 states have call successors, (231) Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:04:27,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:29,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:32,125 WARN L515 Checker$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 05:04:33,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:04:33,415 INFO L93 Difference]: Finished difference Result 1831 states and 2724 transitions. [2021-11-17 05:04:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:04:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 206 [2021-11-17 05:04:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:04:33,431 INFO L225 Difference]: With dead ends: 1831 [2021-11-17 05:04:33,431 INFO L226 Difference]: Without dead ends: 941 [2021-11-17 05:04:33,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:04:33,445 INFO L933 BasicCegarLoop]: 1126 mSDtfsCounter, 786 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 971 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:04:33,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 2107 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 701 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2021-11-17 05:04:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2021-11-17 05:04:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 857. [2021-11-17 05:04:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 582 states have (on average 1.3556701030927836) internal successors, (789), 612 states have internal predecessors, (789), 231 states have call successors, (231), 44 states have call predecessors, (231), 43 states have return successors, (230), 221 states have call predecessors, (230), 230 states have call successors, (230) [2021-11-17 05:04:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1250 transitions. [2021-11-17 05:04:33,546 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1250 transitions. Word has length 206 [2021-11-17 05:04:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:04:33,546 INFO L470 AbstractCegarLoop]: Abstraction has 857 states and 1250 transitions. [2021-11-17 05:04:33,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:04:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1250 transitions. [2021-11-17 05:04:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-17 05:04:33,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:04:33,556 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:04:33,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:04:33,556 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:04:33,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:04:33,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1110743290, now seen corresponding path program 1 times [2021-11-17 05:04:33,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:04:33,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898472612] [2021-11-17 05:04:33,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:04:33,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:04:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:04:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:04:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:04:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:04:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:04:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:04:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 05:04:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 05:04:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 05:04:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 05:04:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 05:04:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 05:04:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 05:04:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 05:04:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 05:04:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-17 05:04:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 05:04:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 05:04:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 05:04:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-17 05:04:33,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:04:33,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898472612] [2021-11-17 05:04:33,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898472612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:04:33,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:04:33,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:04:33,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480551581] [2021-11-17 05:04:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:04:33,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:04:33,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:04:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:04:33,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:04:33,983 INFO L87 Difference]: Start difference. First operand 857 states and 1250 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:04:36,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:38,034 WARN L515 Checker$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 05:04:40,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:42,385 WARN L515 Checker$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 05:04:46,339 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 05:04:49,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:04:49,529 INFO L93 Difference]: Finished difference Result 4544 states and 6717 transitions. [2021-11-17 05:04:49,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 05:04:49,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 200 [2021-11-17 05:04:49,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:04:49,555 INFO L225 Difference]: With dead ends: 4544 [2021-11-17 05:04:49,555 INFO L226 Difference]: Without dead ends: 3704 [2021-11-17 05:04:49,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:04:49,561 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 5477 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 4104 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 8402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4104 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:04:49,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5929 Valid, 4898 Invalid, 8402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4104 Valid, 4293 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2021-11-17 05:04:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-11-17 05:04:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3364. [2021-11-17 05:04:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 2287 states have (on average 1.3563620463489288) internal successors, (3102), 2405 states have internal predecessors, (3102), 903 states have call successors, (903), 173 states have call predecessors, (903), 173 states have return successors, (910), 869 states have call predecessors, (910), 902 states have call successors, (910) [2021-11-17 05:04:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 4915 transitions. [2021-11-17 05:04:49,745 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 4915 transitions. Word has length 200 [2021-11-17 05:04:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:04:49,746 INFO L470 AbstractCegarLoop]: Abstraction has 3364 states and 4915 transitions. [2021-11-17 05:04:49,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:04:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 4915 transitions. [2021-11-17 05:04:49,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 05:04:49,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:04:49,753 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:04:49,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:04:49,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:04:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:04:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1805737481, now seen corresponding path program 1 times [2021-11-17 05:04:49,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:04:49,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110798171] [2021-11-17 05:04:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:04:49,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:04:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:04:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:04:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:04:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:04:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:04:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:04:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:04:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 05:04:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 05:04:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 05:04:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:04:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 05:04:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 05:04:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 05:04:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 05:04:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 05:04:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 05:04:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 05:04:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 05:04:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 05:04:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 05:04:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:04:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-17 05:04:50,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:04:50,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110798171] [2021-11-17 05:04:50,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110798171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:04:50,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:04:50,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:04:50,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757776407] [2021-11-17 05:04:50,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:04:50,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:04:50,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:04:50,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:04:50,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:04:50,059 INFO L87 Difference]: Start difference. First operand 3364 states and 4915 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:04:52,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:53,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:55,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:57,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:04:58,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:04,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:04,154 INFO L93 Difference]: Finished difference Result 18042 states and 26677 transitions. [2021-11-17 05:05:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 05:05:04,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 199 [2021-11-17 05:05:04,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:04,229 INFO L225 Difference]: With dead ends: 18042 [2021-11-17 05:05:04,229 INFO L226 Difference]: Without dead ends: 14695 [2021-11-17 05:05:04,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:05:04,273 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 5805 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 4096 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 8904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4096 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:04,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 4831 Invalid, 8904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4096 Valid, 4806 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2021-11-17 05:05:04,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14695 states. [2021-11-17 05:05:04,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14695 to 13368. [2021-11-17 05:05:04,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13368 states, 9094 states have (on average 1.35385968770618) internal successors, (12312), 9553 states have internal predecessors, (12312), 3582 states have call successors, (3582), 689 states have call predecessors, (3582), 691 states have return successors, (3623), 3461 states have call predecessors, (3623), 3581 states have call successors, (3623) [2021-11-17 05:05:04,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 19517 transitions. [2021-11-17 05:05:04,850 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 19517 transitions. Word has length 199 [2021-11-17 05:05:04,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:04,851 INFO L470 AbstractCegarLoop]: Abstraction has 13368 states and 19517 transitions. [2021-11-17 05:05:04,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:05:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 19517 transitions. [2021-11-17 05:05:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 05:05:04,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:04,856 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:04,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 05:05:04,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1821254840, now seen corresponding path program 1 times [2021-11-17 05:05:04,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:04,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904167139] [2021-11-17 05:05:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:04,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:05:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 05:05:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 05:05:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 05:05:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 05:05:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:05:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:05:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 05:05:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 05:05:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 05:05:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 05:05:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 05:05:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 05:05:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 05:05:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-17 05:05:05,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:05,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904167139] [2021-11-17 05:05:05,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904167139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:05,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:05,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:05:05,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934175794] [2021-11-17 05:05:05,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:05,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:05:05,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:05:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:05:05,204 INFO L87 Difference]: Start difference. First operand 13368 states and 19517 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:05:07,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:09,230 WARN L515 Checker$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 05:05:11,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:13,520 WARN L515 Checker$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 05:05:17,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:20,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:23,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:23,607 INFO L93 Difference]: Finished difference Result 71836 states and 106067 transitions. [2021-11-17 05:05:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 05:05:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 203 [2021-11-17 05:05:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:23,931 INFO L225 Difference]: With dead ends: 71836 [2021-11-17 05:05:23,932 INFO L226 Difference]: Without dead ends: 58485 [2021-11-17 05:05:23,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:05:23,993 INFO L933 BasicCegarLoop]: 1473 mSDtfsCounter, 4696 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 5036 mSolverCounterSat, 3840 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 5371 SdHoareTripleChecker+Invalid, 8882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3840 IncrementalHoareTripleChecker+Valid, 5036 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:23,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5148 Valid, 5371 Invalid, 8882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3840 Valid, 5036 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2021-11-17 05:05:24,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58485 states. [2021-11-17 05:05:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58485 to 53162. [2021-11-17 05:05:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53162 states, 36214 states have (on average 1.351134920196609) internal successors, (48930), 37939 states have internal predecessors, (48930), 14230 states have call successors, (14230), 2737 states have call predecessors, (14230), 2717 states have return successors, (14327), 13745 states have call predecessors, (14327), 14229 states have call successors, (14327) [2021-11-17 05:05:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53162 states to 53162 states and 77487 transitions. [2021-11-17 05:05:26,302 INFO L78 Accepts]: Start accepts. Automaton has 53162 states and 77487 transitions. Word has length 203 [2021-11-17 05:05:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:26,303 INFO L470 AbstractCegarLoop]: Abstraction has 53162 states and 77487 transitions. [2021-11-17 05:05:26,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:05:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 53162 states and 77487 transitions. [2021-11-17 05:05:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-17 05:05:26,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:26,309 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:05:26,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:05:26,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:26,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1957206687, now seen corresponding path program 1 times [2021-11-17 05:05:26,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:26,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105957679] [2021-11-17 05:05:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:26,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 05:05:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 05:05:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:05:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 05:05:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 05:05:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 05:05:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 05:05:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 05:05:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 05:05:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 05:05:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 05:05:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 05:05:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 05:05:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-11-17 05:05:26,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:26,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105957679] [2021-11-17 05:05:26,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105957679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:26,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:26,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 05:05:26,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690043956] [2021-11-17 05:05:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:26,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 05:05:26,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:26,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 05:05:26,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-17 05:05:26,616 INFO L87 Difference]: Start difference. First operand 53162 states and 77487 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:05:28,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:30,644 WARN L515 Checker$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 05:05:32,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:34,941 WARN L515 Checker$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 05:05:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:05:44,610 INFO L93 Difference]: Finished difference Result 265290 states and 389005 transitions. [2021-11-17 05:05:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-17 05:05:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 201 [2021-11-17 05:05:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:05:45,870 INFO L225 Difference]: With dead ends: 265290 [2021-11-17 05:05:45,870 INFO L226 Difference]: Without dead ends: 212145 [2021-11-17 05:05:46,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:05:46,079 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 5485 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 4290 mSolverCounterSat, 4109 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 4883 SdHoareTripleChecker+Invalid, 8403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4109 IncrementalHoareTripleChecker+Valid, 4290 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-17 05:05:46,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5937 Valid, 4883 Invalid, 8403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4109 Valid, 4290 Invalid, 4 Unknown, 0 Unchecked, 13.4s Time] [2021-11-17 05:05:46,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212145 states. [2021-11-17 05:05:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212145 to 195348. [2021-11-17 05:05:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195348 states, 133373 states have (on average 1.3458271164328612) internal successors, (179497), 138851 states have internal predecessors, (179497), 51688 states have call successors, (51688), 10378 states have call predecessors, (51688), 10286 states have return successors, (52097), 50101 states have call predecessors, (52097), 51687 states have call successors, (52097) [2021-11-17 05:05:54,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195348 states to 195348 states and 283282 transitions. [2021-11-17 05:05:54,347 INFO L78 Accepts]: Start accepts. Automaton has 195348 states and 283282 transitions. Word has length 201 [2021-11-17 05:05:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:05:54,349 INFO L470 AbstractCegarLoop]: Abstraction has 195348 states and 283282 transitions. [2021-11-17 05:05:54,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:05:54,349 INFO L276 IsEmpty]: Start isEmpty. Operand 195348 states and 283282 transitions. [2021-11-17 05:05:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-11-17 05:05:54,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:05:54,439 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:54,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 05:05:54,439 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:05:54,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:05:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash 398450710, now seen corresponding path program 1 times [2021-11-17 05:05:54,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:05:54,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379636448] [2021-11-17 05:05:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:05:54,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:05:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:05:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:05:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:05:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:05:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 05:05:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:05:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 05:05:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:05:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 05:05:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 05:05:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:05:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:05:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:05:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 05:05:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:05:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 05:05:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 05:05:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:05:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 05:05:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 05:05:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 05:05:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 05:05:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:05:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 05:05:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:05:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:05:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 05:05:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 05:05:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 05:05:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 05:05:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:05:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 05:05:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 05:05:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 05:05:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 05:05:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 05:05:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 05:05:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 05:05:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 05:05:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 05:05:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 05:05:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-17 05:05:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 05:05:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 05:05:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 05:05:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 05:05:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:05:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2021-11-17 05:05:54,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:05:54,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379636448] [2021-11-17 05:05:54,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379636448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:05:54,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:05:54,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:05:54,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73750496] [2021-11-17 05:05:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:05:54,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:05:54,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:05:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:05:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:05:54,840 INFO L87 Difference]: Start difference. First operand 195348 states and 283282 transitions. Second operand has 9 states, 9 states have (on average 17.0) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 05:05:56,863 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:05:58,869 WARN L515 Checker$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 05:06:00,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:06:03,085 WARN L515 Checker$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 05:06:04,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:06:07,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:06:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:06:18,777 INFO L93 Difference]: Finished difference Result 552655 states and 807312 transitions. [2021-11-17 05:06:18,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-17 05:06:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.0) internal successors, (153), 4 states have internal predecessors, (153), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 376 [2021-11-17 05:06:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:06:20,536 INFO L225 Difference]: With dead ends: 552655 [2021-11-17 05:06:20,536 INFO L226 Difference]: Without dead ends: 357324 [2021-11-17 05:06:21,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-11-17 05:06:21,113 INFO L933 BasicCegarLoop]: 1412 mSDtfsCounter, 2090 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 2211 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 4937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2211 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-17 05:06:21,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 4996 Invalid, 4937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2211 Valid, 2721 Invalid, 5 Unknown, 0 Unchecked, 14.7s Time] [2021-11-17 05:06:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357324 states. [2021-11-17 05:06:32,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357324 to 312765. [2021-11-17 05:06:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312765 states, 214764 states have (on average 1.342766944180589) internal successors, (288378), 224834 states have internal predecessors, (288378), 80737 states have call successors, (80737), 17611 states have call predecessors, (80737), 17263 states have return successors, (81146), 77008 states have call predecessors, (81146), 80736 states have call successors, (81146)