./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 791161d1 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 0.2.2-?-791161d [2022-07-23 01:26:26,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 01:26:26,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 01:26:26,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 01:26:26,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 01:26:26,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 01:26:26,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 01:26:26,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 01:26:26,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 01:26:26,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 01:26:26,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 01:26:26,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 01:26:26,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 01:26:26,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 01:26:26,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 01:26:26,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 01:26:26,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 01:26:26,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 01:26:26,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 01:26:26,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 01:26:26,830 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 01:26:26,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 01:26:26,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 01:26:26,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 01:26:26,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 01:26:26,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 01:26:26,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 01:26:26,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 01:26:26,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 01:26:26,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 01:26:26,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 01:26:26,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 01:26:26,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 01:26:26,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 01:26:26,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 01:26:26,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 01:26:26,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 01:26:26,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 01:26:26,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 01:26:26,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 01:26:26,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 01:26:26,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 01:26:26,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 01:26:26,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 01:26:26,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 01:26:26,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 01:26:26,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 01:26:26,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 01:26:26,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 01:26:26,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 01:26:26,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 01:26:26,871 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 01:26:26,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 01:26:26,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 01:26:26,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 01:26:26,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 01:26:26,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 01:26:26,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 01:26:26,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 01:26:26,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 01:26:26,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 01:26:26,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 01:26:26,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 01:26:26,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 01:26:26,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:26:26,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 01:26:26,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 01:26:26,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 01:26:26,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 01:26:26,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 01:26:26,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 01:26:26,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 01:26:26,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 01:26:26,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2022-07-23 01:26:27,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 01:26:27,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 01:26:27,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 01:26:27,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 01:26:27,144 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 01:26:27,144 INFO L432 ainManager$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 [2022-07-23 01:26:27,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ffd660/ae579e605b2d4b439740243c2b3db486/FLAG538f655e1 [2022-07-23 01:26:27,833 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 01:26:27,834 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 [2022-07-23 01:26:27,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ffd660/ae579e605b2d4b439740243c2b3db486/FLAG538f655e1 [2022-07-23 01:26:27,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494ffd660/ae579e605b2d4b439740243c2b3db486 [2022-07-23 01:26:27,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 01:26:27,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 01:26:27,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 01:26:27,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 01:26:27,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 01:26:27,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:26:27" (1/1) ... [2022-07-23 01:26:27,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e273d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27, skipping insertion in model container [2022-07-23 01:26:27,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:26:27" (1/1) ... [2022-07-23 01:26:27,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 01:26:28,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 01:26:29,184 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] [2022-07-23 01:26:29,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:26:29,277 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 01:26:29,585 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] [2022-07-23 01:26:29,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 01:26:29,729 INFO L208 MainTranslator]: Completed translation [2022-07-23 01:26:29,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29 WrapperNode [2022-07-23 01:26:29,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 01:26:29,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 01:26:29,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 01:26:29,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 01:26:29,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:29,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:29,915 INFO L137 Inliner]: procedures = 176, calls = 1181, calls flagged for inlining = 84, calls inlined = 81, statements flattened = 2585 [2022-07-23 01:26:29,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 01:26:29,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 01:26:29,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 01:26:29,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 01:26:29,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:29,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:29,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:29,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:30,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:30,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:30,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:30,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 01:26:30,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 01:26:30,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 01:26:30,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 01:26:30,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (1/1) ... [2022-07-23 01:26:30,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 01:26:30,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 01:26:30,152 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) [2022-07-23 01:26:30,174 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 [2022-07-23 01:26:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure el3_config [2022-07-23 01:26:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_config [2022-07-23 01:26:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 01:26:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 01:26:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 01:26:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 01:26:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 01:26:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-23 01:26:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-23 01:26:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-23 01:26:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-23 01:26:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 01:26:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 01:26:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 01:26:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 01:26:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 01:26:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 01:26:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 01:26:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 01:26:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-23 01:26:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-23 01:26:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 01:26:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 01:26:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 01:26:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-23 01:26:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-23 01:26:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 01:26:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 01:26:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 01:26:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 01:26:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 01:26:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 01:26:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 01:26:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 01:26:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 01:26:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 01:26:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 01:26:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_reset [2022-07-23 01:26:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_reset [2022-07-23 01:26:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 01:26:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-23 01:26:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-23 01:26:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_present [2022-07-23 01:26:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_present [2022-07-23 01:26:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 01:26:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 01:26:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-23 01:26:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-23 01:26:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure el3_rx [2022-07-23 01:26:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_rx [2022-07-23 01:26:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-23 01:26:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-23 01:26:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 01:26:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 01:26:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 01:26:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 01:26:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 01:26:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_set_xcvr [2022-07-23 01:26:30,211 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_set_xcvr [2022-07-23 01:26:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_release [2022-07-23 01:26:30,212 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_release [2022-07-23 01:26:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-23 01:26:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-23 01:26:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 01:26:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 01:26:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 01:26:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 01:26:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure el3_get_stats [2022-07-23 01:26:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_get_stats [2022-07-23 01:26:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 01:26:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 01:26:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_detach [2022-07-23 01:26:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_detach [2022-07-23 01:26:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_wait_for_completion [2022-07-23 01:26:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_wait_for_completion [2022-07-23 01:26:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 01:26:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 01:26:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-07-23 01:26:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-07-23 01:26:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-23 01:26:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-23 01:26:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 01:26:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 01:26:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-23 01:26:30,216 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-23 01:26:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-23 01:26:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-23 01:26:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 01:26:30,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 01:26:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 01:26:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 01:26:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 01:26:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 01:26:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure pop_tx_status [2022-07-23 01:26:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pop_tx_status [2022-07-23 01:26:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 01:26:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-23 01:26:30,219 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-23 01:26:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 01:26:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 01:26:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure el3_tx_timeout [2022-07-23 01:26:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_tx_timeout [2022-07-23 01:26:30,800 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 01:26:30,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 01:26:31,230 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 01:26:36,673 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 01:26:36,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 01:26:36,690 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 01:26:36,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:26:36 BoogieIcfgContainer [2022-07-23 01:26:36,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 01:26:36,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 01:26:36,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 01:26:36,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 01:26:36,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:26:27" (1/3) ... [2022-07-23 01:26:36,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0e8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:26:36, skipping insertion in model container [2022-07-23 01:26:36,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:29" (2/3) ... [2022-07-23 01:26:36,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0e8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:26:36, skipping insertion in model container [2022-07-23 01:26:36,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:26:36" (3/3) ... [2022-07-23 01:26:36,704 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 [2022-07-23 01:26:36,717 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 01:26:36,718 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 01:26:36,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 01:26:36,805 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6ff4554e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7430802e [2022-07-23 01:26:36,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 01:26:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 895 states, 612 states have (on average 1.3856209150326797) internal successors, (848), 650 states have internal predecessors, (848), 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) [2022-07-23 01:26:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-23 01:26:36,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:26:36,851 INFO L195 NwaCegarLoop]: 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] [2022-07-23 01:26:36,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:26:36,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:26:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1506867481, now seen corresponding path program 1 times [2022-07-23 01:26:36,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:26:36,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861230656] [2022-07-23 01:26:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:26:36,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:26:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:26:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:26:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:26:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:26:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:26:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 01:26:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:26:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 01:26:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 01:26:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:26:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:26:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 01:26:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:26:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 01:26:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-23 01:26:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 01:26:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 01:26:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 01:26:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 01:26:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-23 01:26:37,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:26:37,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861230656] [2022-07-23 01:26:37,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861230656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:26:37,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:26:37,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 01:26:37,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774107967] [2022-07-23 01:26:37,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:26:37,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 01:26:37,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:26:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 01:26:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 01:26:37,938 INFO L87 Difference]: Start difference. First operand has 895 states, 612 states have (on average 1.3856209150326797) internal successors, (848), 650 states have internal predecessors, (848), 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 17.6) internal successors, (88), 2 states have internal predecessors, (88), 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) [2022-07-23 01:26:39,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:41,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:44,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:26:45,646 INFO L93 Difference]: Finished difference Result 1878 states and 2811 transitions. [2022-07-23 01:26:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 01:26:45,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 2 states have internal predecessors, (88), 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 201 [2022-07-23 01:26:45,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:26:45,671 INFO L225 Difference]: With dead ends: 1878 [2022-07-23 01:26:45,671 INFO L226 Difference]: Without dead ends: 969 [2022-07-23 01:26:45,678 INFO L412 NwaCegarLoop]: 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 [2022-07-23 01:26:45,704 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 822 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 968 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 968 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:26:45,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 2124 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-07-23 01:26:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-07-23 01:26:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 876. [2022-07-23 01:26:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 601 states have (on average 1.3544093178036605) internal successors, (814), 631 states have internal predecessors, (814), 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) [2022-07-23 01:26:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1275 transitions. [2022-07-23 01:26:45,861 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1275 transitions. Word has length 201 [2022-07-23 01:26:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:26:45,861 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1275 transitions. [2022-07-23 01:26:45,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 2 states have internal predecessors, (88), 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) [2022-07-23 01:26:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1275 transitions. [2022-07-23 01:26:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-23 01:26:45,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:26:45,876 INFO L195 NwaCegarLoop]: 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] [2022-07-23 01:26:45,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 01:26:45,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:26:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:26:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -310120505, now seen corresponding path program 1 times [2022-07-23 01:26:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:26:45,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979699610] [2022-07-23 01:26:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:26:45,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:26:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:26:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:26:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:26:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:26:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:26:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:26:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:26:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 01:26:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 01:26:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 01:26:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 01:26:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 01:26:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 01:26:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 01:26:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 01:26:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-23 01:26:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 01:26:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 01:26:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-23 01:26:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-23 01:26:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 01:26:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:26:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-23 01:26:46,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:26:46,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979699610] [2022-07-23 01:26:46,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979699610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:26:46,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:26:46,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:26:46,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770816070] [2022-07-23 01:26:46,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:26:46,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:26:46,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:26:46,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:26:46,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:26:46,305 INFO L87 Difference]: Start difference. First operand 876 states and 1275 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) [2022-07-23 01:26:48,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:50,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:52,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:54,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:56,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:26:58,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:03,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:04,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:08,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:10,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:27:13,920 INFO L93 Difference]: Finished difference Result 4677 states and 6890 transitions. [2022-07-23 01:27:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 01:27:13,921 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 [2022-07-23 01:27:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:27:13,945 INFO L225 Difference]: With dead ends: 4677 [2022-07-23 01:27:13,945 INFO L226 Difference]: Without dead ends: 3818 [2022-07-23 01:27:13,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-07-23 01:27:13,951 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 4343 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 7085 mSolverCounterSat, 2750 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 9844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2750 IncrementalHoareTripleChecker+Valid, 7085 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-07-23 01:27:13,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 5745 Invalid, 9844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2750 Valid, 7085 Invalid, 9 Unknown, 0 Unchecked, 27.1s Time] [2022-07-23 01:27:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-07-23 01:27:14,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3442. [2022-07-23 01:27:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 2365 states have (on average 1.355602536997886) internal successors, (3206), 2483 states have internal predecessors, (3206), 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) [2022-07-23 01:27:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5019 transitions. [2022-07-23 01:27:14,147 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5019 transitions. Word has length 203 [2022-07-23 01:27:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:27:14,148 INFO L495 AbstractCegarLoop]: Abstraction has 3442 states and 5019 transitions. [2022-07-23 01:27:14,149 INFO L496 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) [2022-07-23 01:27:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5019 transitions. [2022-07-23 01:27:14,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-23 01:27:14,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:27:14,156 INFO L195 NwaCegarLoop]: 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] [2022-07-23 01:27:14,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 01:27:14,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:27:14,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:27:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1943633297, now seen corresponding path program 1 times [2022-07-23 01:27:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:27:14,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296189042] [2022-07-23 01:27:14,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:27:14,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:27:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:27:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:27:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:27:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:27:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:27:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-23 01:27:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-23 01:27:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 01:27:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 01:27:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-23 01:27:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 01:27:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 01:27:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-23 01:27:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 01:27:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 01:27:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 01:27:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-23 01:27:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-23 01:27:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-23 01:27:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:14,573 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-23 01:27:14,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:27:14,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296189042] [2022-07-23 01:27:14,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296189042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:27:14,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:27:14,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:27:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21958479] [2022-07-23 01:27:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:27:14,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:27:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:27:14,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:27:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:27:14,577 INFO L87 Difference]: Start difference. First operand 3442 states and 5019 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) [2022-07-23 01:27:16,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:18,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:20,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:22,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:24,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:26,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:27:32,972 INFO L93 Difference]: Finished difference Result 18548 states and 27333 transitions. [2022-07-23 01:27:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 01:27:32,973 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 [2022-07-23 01:27:32,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:27:33,062 INFO L225 Difference]: With dead ends: 18548 [2022-07-23 01:27:33,062 INFO L226 Difference]: Without dead ends: 15123 [2022-07-23 01:27:33,079 INFO L412 NwaCegarLoop]: 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 [2022-07-23 01:27:33,082 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 5185 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 5788 mSolverCounterSat, 3285 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 9077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3285 IncrementalHoareTripleChecker+Valid, 5788 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-07-23 01:27:33,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5637 Valid, 4893 Invalid, 9077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3285 Valid, 5788 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2022-07-23 01:27:33,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15123 states. [2022-07-23 01:27:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15123 to 13640. [2022-07-23 01:27:33,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13640 states, 9382 states have (on average 1.352803240247282) internal successors, (12692), 9829 states have internal predecessors, (12692), 3574 states have call successors, (3574), 685 states have call predecessors, (3574), 683 states have return successors, (3599), 3445 states have call predecessors, (3599), 3573 states have call successors, (3599) [2022-07-23 01:27:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13640 states to 13640 states and 19865 transitions. [2022-07-23 01:27:33,906 INFO L78 Accepts]: Start accepts. Automaton has 13640 states and 19865 transitions. Word has length 200 [2022-07-23 01:27:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:27:33,906 INFO L495 AbstractCegarLoop]: Abstraction has 13640 states and 19865 transitions. [2022-07-23 01:27:33,907 INFO L496 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) [2022-07-23 01:27:33,907 INFO L276 IsEmpty]: Start isEmpty. Operand 13640 states and 19865 transitions. [2022-07-23 01:27:33,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-23 01:27:33,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:27:33,913 INFO L195 NwaCegarLoop]: 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] [2022-07-23 01:27:33,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 01:27:33,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:27:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:27:33,914 INFO L85 PathProgramCache]: Analyzing trace with hash 448573577, now seen corresponding path program 1 times [2022-07-23 01:27:33,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:27:33,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864926416] [2022-07-23 01:27:33,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:27:33,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:27:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:27:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:27:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:27:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:27:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:27:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:27:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:27:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 01:27:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 01:27:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-23 01:27:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-23 01:27:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 01:27:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 01:27:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 01:27:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-23 01:27:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-23 01:27:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-23 01:27:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 01:27:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-23 01:27:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-23 01:27:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-23 01:27:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:27:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-23 01:27:34,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:27:34,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864926416] [2022-07-23 01:27:34,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864926416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:27:34,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:27:34,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:27:34,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001367642] [2022-07-23 01:27:34,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:27:34,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:27:34,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:27:34,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:27:34,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:27:34,333 INFO L87 Difference]: Start difference. First operand 13640 states and 19865 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 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) [2022-07-23 01:27:36,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:38,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:40,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:42,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:46,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:48,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:52,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:27:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:27:56,356 INFO L93 Difference]: Finished difference Result 73888 states and 108633 transitions. [2022-07-23 01:27:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 01:27:56,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 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 202 [2022-07-23 01:27:56,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:27:56,754 INFO L225 Difference]: With dead ends: 73888 [2022-07-23 01:27:56,754 INFO L226 Difference]: Without dead ends: 60265 [2022-07-23 01:27:56,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-07-23 01:27:56,932 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 5221 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 6063 mSolverCounterSat, 3560 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5673 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 9629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3560 IncrementalHoareTripleChecker+Valid, 6063 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2022-07-23 01:27:56,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5673 Valid, 4994 Invalid, 9629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3560 Valid, 6063 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2022-07-23 01:27:56,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60265 states. [2022-07-23 01:27:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60265 to 54422. [2022-07-23 01:27:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54422 states, 37464 states have (on average 1.3503096305786888) internal successors, (50588), 39199 states have internal predecessors, (50588), 14230 states have call successors, (14230), 2737 states have call predecessors, (14230), 2727 states have return successors, (14347), 13765 states have call predecessors, (14347), 14229 states have call successors, (14347) [2022-07-23 01:27:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54422 states to 54422 states and 79165 transitions. [2022-07-23 01:27:59,927 INFO L78 Accepts]: Start accepts. Automaton has 54422 states and 79165 transitions. Word has length 202 [2022-07-23 01:27:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:27:59,928 INFO L495 AbstractCegarLoop]: Abstraction has 54422 states and 79165 transitions. [2022-07-23 01:27:59,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 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) [2022-07-23 01:27:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 54422 states and 79165 transitions. [2022-07-23 01:27:59,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-23 01:27:59,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:27:59,935 INFO L195 NwaCegarLoop]: 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] [2022-07-23 01:27:59,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 01:27:59,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:27:59,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:27:59,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1332628815, now seen corresponding path program 1 times [2022-07-23 01:27:59,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:27:59,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654293636] [2022-07-23 01:27:59,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:27:59,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:28:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:28:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:28:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:28:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:28:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:28:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 01:28:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:28:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 01:28:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 01:28:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:28:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 01:28:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 01:28:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 01:28:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 01:28:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-23 01:28:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 01:28:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 01:28:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 01:28:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 01:28:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-23 01:28:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:28:00,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654293636] [2022-07-23 01:28:00,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654293636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:28:00,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:28:00,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 01:28:00,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827847966] [2022-07-23 01:28:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:28:00,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 01:28:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:28:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 01:28:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 01:28:00,623 INFO L87 Difference]: Start difference. First operand 54422 states and 79165 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) [2022-07-23 01:28:02,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:04,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:06,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:08,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:10,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:12,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:16,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:19,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:27,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:28:27,349 INFO L93 Difference]: Finished difference Result 271474 states and 397239 transitions. [2022-07-23 01:28:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 01:28:27,349 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 [2022-07-23 01:28:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:28:28,706 INFO L225 Difference]: With dead ends: 271474 [2022-07-23 01:28:28,706 INFO L226 Difference]: Without dead ends: 217069 [2022-07-23 01:28:28,914 INFO L412 NwaCegarLoop]: 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 [2022-07-23 01:28:28,915 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 4354 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 7053 mSolverCounterSat, 2766 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 9826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2766 IncrementalHoareTripleChecker+Valid, 7053 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2022-07-23 01:28:28,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4806 Valid, 5703 Invalid, 9826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2766 Valid, 7053 Invalid, 7 Unknown, 0 Unchecked, 21.9s Time] [2022-07-23 01:28:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217069 states. [2022-07-23 01:28:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217069 to 198673. [2022-07-23 01:28:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198673 states, 136698 states have (on average 1.3450964900730076) internal successors, (183872), 142176 states have internal predecessors, (183872), 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) [2022-07-23 01:28:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198673 states to 198673 states and 287657 transitions. [2022-07-23 01:28:37,891 INFO L78 Accepts]: Start accepts. Automaton has 198673 states and 287657 transitions. Word has length 201 [2022-07-23 01:28:37,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 01:28:37,892 INFO L495 AbstractCegarLoop]: Abstraction has 198673 states and 287657 transitions. [2022-07-23 01:28:37,893 INFO L496 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) [2022-07-23 01:28:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 198673 states and 287657 transitions. [2022-07-23 01:28:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-23 01:28:38,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 01:28:38,011 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 01:28:38,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 01:28:38,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 01:28:38,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 01:28:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash 550985800, now seen corresponding path program 1 times [2022-07-23 01:28:38,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 01:28:38,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837578358] [2022-07-23 01:28:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 01:28:38,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 01:28:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:28:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-23 01:28:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:28:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 01:28:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 01:28:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-23 01:28:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 01:28:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 01:28:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-23 01:28:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-23 01:28:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 01:28:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-23 01:28:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 01:28:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 01:28:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 01:28:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 01:28:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 01:28:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-23 01:28:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 01:28:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 01:28:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-23 01:28:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 01:28:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 01:28:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 01:28:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-23 01:28:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-23 01:28:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 01:28:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-23 01:28:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 01:28:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 01:28:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 01:28:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 01:28:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-23 01:28:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-23 01:28:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-23 01:28:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-23 01:28:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-23 01:28:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-23 01:28:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-23 01:28:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-23 01:28:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-23 01:28:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-23 01:28:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-23 01:28:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-23 01:28:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-23 01:28:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-23 01:28:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-23 01:28:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-23 01:28:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 01:28:38,767 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-07-23 01:28:38,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 01:28:38,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837578358] [2022-07-23 01:28:38,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837578358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 01:28:38,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 01:28:38,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 01:28:38,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823629924] [2022-07-23 01:28:38,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 01:28:38,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 01:28:38,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 01:28:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 01:28:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-23 01:28:38,770 INFO L87 Difference]: Start difference. First operand 198673 states and 287657 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 4 states have internal predecessors, (160), 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) [2022-07-23 01:28:40,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:42,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:44,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:47,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:49,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:51,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:28:53,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 01:29:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 01:29:07,035 INFO L93 Difference]: Finished difference Result 565780 states and 824287 transitions. [2022-07-23 01:29:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 01:29:07,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 4 states have internal predecessors, (160), 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 383 [2022-07-23 01:29:07,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 01:29:08,931 INFO L225 Difference]: With dead ends: 565780 [2022-07-23 01:29:08,931 INFO L226 Difference]: Without dead ends: 367124 [2022-07-23 01:29:09,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2022-07-23 01:29:09,459 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 2455 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 2623 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-07-23 01:29:09,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 4540 Invalid, 5945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2623 Valid, 3316 Invalid, 6 Unknown, 0 Unchecked, 17.7s Time] [2022-07-23 01:29:09,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367124 states.