./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 eb692b52 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-?-eb692b5 [2022-07-20 01:12:28,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:12:28,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:12:28,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:12:28,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:12:28,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:12:28,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:12:28,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:12:28,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:12:28,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:12:28,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:12:28,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:12:28,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:12:28,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:12:28,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:12:28,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:12:28,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:12:28,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:12:28,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:12:28,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:12:28,738 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:12:28,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:12:28,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:12:28,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:12:28,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:12:28,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:12:28,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:12:28,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:12:28,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:12:28,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:12:28,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:12:28,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:12:28,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:12:28,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:12:28,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:12:28,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:12:28,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:12:28,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:12:28,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:12:28,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:12:28,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:12:28,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:12:28,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:12:28,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:12:28,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:12:28,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:12:28,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:12:28,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:12:28,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:12:28,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:12:28,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:12:28,795 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:12:28,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:12:28,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:12:28,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:12:28,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:12:28,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:12:28,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:12:28,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:12:28,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:12:28,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:12:28,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:12:28,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:12:28,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:12:28,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:12:28,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:12:28,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:12:28,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:12:28,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:12:28,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:12:28,801 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:12:28,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:12:28,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:12:28,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2022-07-20 01:12:29,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:12:29,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:12:29,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:12:29,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:12:29,080 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:12:29,081 INFO L432 ainManager$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 [2022-07-20 01:12:29,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bcc44c55/9871fcfe81f247f28e1d43fcc624b388/FLAG0c7816325 [2022-07-20 01:12:29,829 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:12:29,829 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 [2022-07-20 01:12:29,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bcc44c55/9871fcfe81f247f28e1d43fcc624b388/FLAG0c7816325 [2022-07-20 01:12:30,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bcc44c55/9871fcfe81f247f28e1d43fcc624b388 [2022-07-20 01:12:30,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:12:30,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:12:30,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:12:30,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:12:30,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:12:30,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:12:30" (1/1) ... [2022-07-20 01:12:30,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694b8002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:30, skipping insertion in model container [2022-07-20 01:12:30,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:12:30" (1/1) ... [2022-07-20 01:12:30,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:12:30,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:12:31,351 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] [2022-07-20 01:12:31,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:12:31,425 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:12:31,732 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] [2022-07-20 01:12:31,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:12:31,905 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:12:31,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31 WrapperNode [2022-07-20 01:12:31,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:12:31,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:12:31,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:12:31,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:12:31,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:31,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,104 INFO L137 Inliner]: procedures = 176, calls = 1181, calls flagged for inlining = 84, calls inlined = 81, statements flattened = 2585 [2022-07-20 01:12:32,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:12:32,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:12:32,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:12:32,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:12:32,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:12:32,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:12:32,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:12:32,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:12:32,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (1/1) ... [2022-07-20 01:12:32,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:12:32,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:12:32,307 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) [2022-07-20 01:12:32,325 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 [2022-07-20 01:12:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure el3_config [2022-07-20 01:12:32,361 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_config [2022-07-20 01:12:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:12:32,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:12:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 01:12:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:12:32,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:12:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-20 01:12:32,362 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-20 01:12:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-20 01:12:32,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-20 01:12:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 01:12:32,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 01:12:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:12:32,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:12:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:12:32,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:12:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:12:32,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:12:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-20 01:12:32,364 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-20 01:12:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:12:32,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:12:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 01:12:32,364 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-20 01:12:32,364 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-20 01:12:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:12:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:12:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:12:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:12:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:12:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:12:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:12:32,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:12:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:12:32,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:12:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:12:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_reset [2022-07-20 01:12:32,367 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_reset [2022-07-20 01:12:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:12:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-20 01:12:32,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-20 01:12:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_present [2022-07-20 01:12:32,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_present [2022-07-20 01:12:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:12:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:12:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-20 01:12:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-20 01:12:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure el3_rx [2022-07-20 01:12:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_rx [2022-07-20 01:12:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-20 01:12:32,369 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-20 01:12:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:12:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 01:12:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 01:12:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 01:12:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 01:12:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_set_xcvr [2022-07-20 01:12:32,371 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_set_xcvr [2022-07-20 01:12:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_release [2022-07-20 01:12:32,372 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_release [2022-07-20 01:12:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-20 01:12:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-20 01:12:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 01:12:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 01:12:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:12:32,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:12:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure el3_get_stats [2022-07-20 01:12:32,374 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_get_stats [2022-07-20 01:12:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:12:32,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:12:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_detach [2022-07-20 01:12:32,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_detach [2022-07-20 01:12:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_wait_for_completion [2022-07-20 01:12:32,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_wait_for_completion [2022-07-20 01:12:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:12:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:12:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-07-20 01:12:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-07-20 01:12:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 01:12:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 01:12:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 01:12:32,376 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 01:12:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-20 01:12:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-20 01:12:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-20 01:12:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-20 01:12:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:12:32,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:12:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 01:12:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 01:12:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:12:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:12:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure pop_tx_status [2022-07-20 01:12:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pop_tx_status [2022-07-20 01:12:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 01:12:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-20 01:12:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-20 01:12:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:12:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:12:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure el3_tx_timeout [2022-07-20 01:12:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_tx_timeout [2022-07-20 01:12:32,860 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:12:32,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:12:33,334 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:12:38,889 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:12:38,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:12:38,907 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:12:38,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:12:38 BoogieIcfgContainer [2022-07-20 01:12:38,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:12:38,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:12:38,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:12:38,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:12:38,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:12:30" (1/3) ... [2022-07-20 01:12:38,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487ea167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:12:38, skipping insertion in model container [2022-07-20 01:12:38,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:12:31" (2/3) ... [2022-07-20 01:12:38,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487ea167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:12:38, skipping insertion in model container [2022-07-20 01:12:38,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:12:38" (3/3) ... [2022-07-20 01:12:38,919 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 [2022-07-20 01:12:38,933 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:12:38,933 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:12:39,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:12:39,011 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@10c008ac, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a056e27 [2022-07-20 01:12:39,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:12:39,019 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) [2022-07-20 01:12:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-20 01:12:39,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:12:39,060 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] [2022-07-20 01:12:39,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:12:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:12:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1506867481, now seen corresponding path program 1 times [2022-07-20 01:12:39,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:12:39,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448922312] [2022-07-20 01:12:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:12:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:12:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:12:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:12:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:12:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:12:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:12:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 01:12:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 01:12:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 01:12:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 01:12:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:12:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 01:12:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 01:12:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:12:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 01:12:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 01:12:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 01:12:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:40,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 01:12:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:40,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 01:12:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:12:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-20 01:12:40,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:12:40,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448922312] [2022-07-20 01:12:40,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448922312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:12:40,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:12:40,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:12:40,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425277460] [2022-07-20 01:12:40,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:12:40,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:12:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:12:40,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:12:40,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:12:40,099 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) [2022-07-20 01:12:42,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:43,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:46,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:12:47,945 INFO L93 Difference]: Finished difference Result 1878 states and 2811 transitions. [2022-07-20 01:12:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:12:47,948 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 [2022-07-20 01:12:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:12:47,967 INFO L225 Difference]: With dead ends: 1878 [2022-07-20 01:12:47,968 INFO L226 Difference]: Without dead ends: 969 [2022-07-20 01:12:47,978 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 [2022-07-20 01:12:47,981 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 822 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 968 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s 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, 7.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:12:47,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 2124 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-07-20 01:12:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-07-20 01:12:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 876. [2022-07-20 01:12:48,097 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) [2022-07-20 01:12:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1275 transitions. [2022-07-20 01:12:48,106 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1275 transitions. Word has length 201 [2022-07-20 01:12:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:12:48,106 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1275 transitions. [2022-07-20 01:12:48,107 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) [2022-07-20 01:12:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1275 transitions. [2022-07-20 01:12:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-20 01:12:48,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:12:48,118 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] [2022-07-20 01:12:48,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 01:12:48,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:12:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:12:48,119 INFO L85 PathProgramCache]: Analyzing trace with hash -310120505, now seen corresponding path program 1 times [2022-07-20 01:12:48,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:12:48,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482016378] [2022-07-20 01:12:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:12:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:12:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:12:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:12:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:12:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:12:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:12:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:12:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:12:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:12:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 01:12:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-20 01:12:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 01:12:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 01:12:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 01:12:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 01:12:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 01:12:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 01:12:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 01:12:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:12:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-20 01:12:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-20 01:12:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 01:12:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:12:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-20 01:12:48,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:12:48,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482016378] [2022-07-20 01:12:48,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482016378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:12:48,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:12:48,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:12:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267082921] [2022-07-20 01:12:48,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:12:48,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:12:48,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:12:48,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:12:48,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:12:48,670 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) [2022-07-20 01:12:50,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:52,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:54,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:56,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:12:59,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:01,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:05,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:10,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:13:14,117 INFO L93 Difference]: Finished difference Result 4677 states and 6890 transitions. [2022-07-20 01:13:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 01:13:14,118 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 [2022-07-20 01:13:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:13:14,141 INFO L225 Difference]: With dead ends: 4677 [2022-07-20 01:13:14,141 INFO L226 Difference]: Without dead ends: 3818 [2022-07-20 01:13:14,145 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 [2022-07-20 01:13:14,146 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 4343 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 7086 mSolverCounterSat, 2750 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 9844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2750 IncrementalHoareTripleChecker+Valid, 7086 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:13:14,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 5745 Invalid, 9844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2750 Valid, 7086 Invalid, 8 Unknown, 0 Unchecked, 24.9s Time] [2022-07-20 01:13:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-07-20 01:13:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3442. [2022-07-20 01:13:14,290 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) [2022-07-20 01:13:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5019 transitions. [2022-07-20 01:13:14,309 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5019 transitions. Word has length 203 [2022-07-20 01:13:14,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:13:14,311 INFO L495 AbstractCegarLoop]: Abstraction has 3442 states and 5019 transitions. [2022-07-20 01:13:14,311 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) [2022-07-20 01:13:14,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5019 transitions. [2022-07-20 01:13:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-20 01:13:14,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:13:14,319 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] [2022-07-20 01:13:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 01:13:14,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:13:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:13:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1943633297, now seen corresponding path program 1 times [2022-07-20 01:13:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:13:14,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198121170] [2022-07-20 01:13:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:13:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:13:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:13:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:13:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:13:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:13:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:13:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-20 01:13:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-20 01:13:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 01:13:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:13:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-20 01:13:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-20 01:13:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 01:13:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-20 01:13:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-20 01:13:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 01:13:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-20 01:13:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-20 01:13:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 01:13:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-20 01:13:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-20 01:13:14,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:13:14,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198121170] [2022-07-20 01:13:14,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198121170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:13:14,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:13:14,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:13:14,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244725661] [2022-07-20 01:13:14,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:13:14,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:13:14,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:13:14,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:13:14,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:13:14,740 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) [2022-07-20 01:13:16,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:18,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:20,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:22,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:24,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:26,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:13:33,551 INFO L93 Difference]: Finished difference Result 18548 states and 27333 transitions. [2022-07-20 01:13:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 01:13:33,552 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 [2022-07-20 01:13:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:13:33,647 INFO L225 Difference]: With dead ends: 18548 [2022-07-20 01:13:33,647 INFO L226 Difference]: Without dead ends: 15123 [2022-07-20 01:13:33,671 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 [2022-07-20 01:13:33,672 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 5185 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 5787 mSolverCounterSat, 3285 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5637 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 9077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3285 IncrementalHoareTripleChecker+Valid, 5787 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:13:33,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5637 Valid, 4893 Invalid, 9077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3285 Valid, 5787 Invalid, 5 Unknown, 0 Unchecked, 18.2s Time] [2022-07-20 01:13:33,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15123 states. [2022-07-20 01:13:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15123 to 13640. [2022-07-20 01:13:34,376 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) [2022-07-20 01:13:34,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13640 states to 13640 states and 19865 transitions. [2022-07-20 01:13:34,431 INFO L78 Accepts]: Start accepts. Automaton has 13640 states and 19865 transitions. Word has length 200 [2022-07-20 01:13:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:13:34,432 INFO L495 AbstractCegarLoop]: Abstraction has 13640 states and 19865 transitions. [2022-07-20 01:13:34,433 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) [2022-07-20 01:13:34,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13640 states and 19865 transitions. [2022-07-20 01:13:34,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-20 01:13:34,439 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:13:34,439 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] [2022-07-20 01:13:34,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 01:13:34,439 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:13:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:13:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash 448573577, now seen corresponding path program 1 times [2022-07-20 01:13:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:13:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039284072] [2022-07-20 01:13:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:13:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:13:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:13:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:13:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:13:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:13:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:13:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-20 01:13:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-20 01:13:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-20 01:13:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 01:13:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 01:13:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:13:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-20 01:13:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 01:13:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-20 01:13:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 01:13:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 01:13:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 01:13:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 01:13:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-20 01:13:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-20 01:13:34,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:13:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039284072] [2022-07-20 01:13:34,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039284072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:13:34,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:13:34,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:13:34,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700581894] [2022-07-20 01:13:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:13:34,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:13:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:13:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:13:34,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:13:34,956 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) [2022-07-20 01:13:36,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:38,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:40,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:43,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:13:47,948 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 [] [2022-07-20 01:13:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:13:53,173 INFO L93 Difference]: Finished difference Result 73888 states and 108633 transitions. [2022-07-20 01:13:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 01:13:53,173 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 [2022-07-20 01:13:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:13:53,536 INFO L225 Difference]: With dead ends: 73888 [2022-07-20 01:13:53,536 INFO L226 Difference]: Without dead ends: 60265 [2022-07-20 01:13:53,619 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 [2022-07-20 01:13:53,621 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 5221 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 6062 mSolverCounterSat, 3560 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5673 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 9627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3560 IncrementalHoareTripleChecker+Valid, 6062 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-07-20 01:13:53,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5673 Valid, 4994 Invalid, 9627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3560 Valid, 6062 Invalid, 5 Unknown, 0 Unchecked, 16.7s Time] [2022-07-20 01:13:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60265 states. [2022-07-20 01:13:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60265 to 54422. [2022-07-20 01:13:56,160 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) [2022-07-20 01:13:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54422 states to 54422 states and 79165 transitions. [2022-07-20 01:13:56,438 INFO L78 Accepts]: Start accepts. Automaton has 54422 states and 79165 transitions. Word has length 202 [2022-07-20 01:13:56,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:13:56,439 INFO L495 AbstractCegarLoop]: Abstraction has 54422 states and 79165 transitions. [2022-07-20 01:13:56,440 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) [2022-07-20 01:13:56,440 INFO L276 IsEmpty]: Start isEmpty. Operand 54422 states and 79165 transitions. [2022-07-20 01:13:56,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-20 01:13:56,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:13:56,446 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] [2022-07-20 01:13:56,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 01:13:56,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:13:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:13:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1332628815, now seen corresponding path program 1 times [2022-07-20 01:13:56,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:13:56,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644744430] [2022-07-20 01:13:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:13:56,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:13:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:13:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:13:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:13:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:13:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:13:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:13:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:13:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 01:13:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:56,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 01:13:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 01:13:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 01:13:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:13:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 01:13:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 01:13:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:13:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-20 01:13:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 01:13:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 01:13:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 01:13:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 01:13:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:13:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:13:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-20 01:13:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:13:57,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644744430] [2022-07-20 01:13:57,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644744430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:13:57,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:13:57,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:13:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709084029] [2022-07-20 01:13:57,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:13:57,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:13:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:13:57,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:13:57,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:13:57,082 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) [2022-07-20 01:13:59,110 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 [] [2022-07-20 01:14:01,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:03,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:05,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:07,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:09,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:13,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:15,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:18,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:20,788 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 [] [2022-07-20 01:14:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:14:29,053 INFO L93 Difference]: Finished difference Result 271474 states and 397239 transitions. [2022-07-20 01:14:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-20 01:14:29,054 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 [2022-07-20 01:14:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:14:30,726 INFO L225 Difference]: With dead ends: 271474 [2022-07-20 01:14:30,726 INFO L226 Difference]: Without dead ends: 217069 [2022-07-20 01:14:30,968 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 [2022-07-20 01:14:30,969 INFO L413 NwaCegarLoop]: 1487 mSDtfsCounter, 4354 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 7052 mSolverCounterSat, 2766 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 9828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2766 IncrementalHoareTripleChecker+Valid, 7052 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:14:30,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4806 Valid, 5703 Invalid, 9828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2766 Valid, 7052 Invalid, 10 Unknown, 0 Unchecked, 26.9s Time] [2022-07-20 01:14:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217069 states. [2022-07-20 01:14:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217069 to 198673. [2022-07-20 01:14:39,016 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) [2022-07-20 01:14:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198673 states to 198673 states and 287657 transitions. [2022-07-20 01:14:40,408 INFO L78 Accepts]: Start accepts. Automaton has 198673 states and 287657 transitions. Word has length 201 [2022-07-20 01:14:40,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:14:40,409 INFO L495 AbstractCegarLoop]: Abstraction has 198673 states and 287657 transitions. [2022-07-20 01:14:40,410 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) [2022-07-20 01:14:40,410 INFO L276 IsEmpty]: Start isEmpty. Operand 198673 states and 287657 transitions. [2022-07-20 01:14:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-20 01:14:40,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:14:40,536 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] [2022-07-20 01:14:40,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 01:14:40,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:14:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:14:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 550985800, now seen corresponding path program 1 times [2022-07-20 01:14:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:14:40,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136203973] [2022-07-20 01:14:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:14:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:14:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:14:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:14:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:14:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:14:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:14:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:14:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 01:14:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 01:14:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:14:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:14:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-20 01:14:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 01:14:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 01:14:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:14:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:14:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 01:14:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 01:14:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 01:14:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-20 01:14:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:14:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-20 01:14:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 01:14:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 01:14:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-20 01:14:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-20 01:14:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-20 01:14:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:14:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-20 01:14:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 01:14:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 01:14:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 01:14:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-20 01:14:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 01:14:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-20 01:14:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-20 01:14:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-20 01:14:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-20 01:14:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-20 01:14:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-20 01:14:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 01:14:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-20 01:14:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-20 01:14:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-20 01:14:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-20 01:14:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-20 01:14:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-20 01:14:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-07-20 01:14:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-20 01:14:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:14:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-07-20 01:14:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:14:41,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136203973] [2022-07-20 01:14:41,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136203973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:14:41,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:14:41,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 01:14:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469144134] [2022-07-20 01:14:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:14:41,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 01:14:41,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:14:41,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 01:14:41,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:14:41,347 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) [2022-07-20 01:14:43,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:45,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:47,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:49,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:51,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:14:53,700 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 [] [2022-07-20 01:15:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:15:08,264 INFO L93 Difference]: Finished difference Result 565780 states and 824287 transitions. [2022-07-20 01:15:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-20 01:15:08,265 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 [2022-07-20 01:15:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:15:10,587 INFO L225 Difference]: With dead ends: 565780 [2022-07-20 01:15:10,587 INFO L226 Difference]: Without dead ends: 367124 [2022-07-20 01:15:11,323 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 [2022-07-20 01:15:11,324 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 2455 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 2623 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:15:11,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 4540 Invalid, 5944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2623 Valid, 3316 Invalid, 5 Unknown, 0 Unchecked, 15.5s Time] [2022-07-20 01:15:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367124 states.