./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.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 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 08:15:36,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 08:15:36,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 08:15:36,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 08:15:36,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 08:15:36,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 08:15:36,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 08:15:36,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 08:15:36,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 08:15:36,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 08:15:36,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 08:15:36,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 08:15:36,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 08:15:36,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 08:15:36,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 08:15:36,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 08:15:36,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 08:15:36,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 08:15:36,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 08:15:36,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 08:15:36,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 08:15:36,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 08:15:36,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 08:15:36,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 08:15:36,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 08:15:36,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 08:15:36,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 08:15:36,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 08:15:36,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 08:15:36,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 08:15:36,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 08:15:36,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 08:15:36,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 08:15:36,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 08:15:36,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 08:15:36,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 08:15:36,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 08:15:36,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 08:15:36,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 08:15:36,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 08:15:36,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 08:15:36,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 08:15:36,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 08:15:36,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 08:15:36,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 08:15:36,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 08:15:36,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 08:15:36,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 08:15:36,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 08:15:36,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 08:15:36,323 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 08:15:36,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 08:15:36,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 08:15:36,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 08:15:36,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 08:15:36,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 08:15:36,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:15:36,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 08:15:36,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 08:15:36,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 08:15:36,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 08:15:36,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 08:15:36,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 08:15:36,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 08:15:36,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 08:15:36,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 08:15:36,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2021-11-17 08:15:36,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 08:15:36,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 08:15:36,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 08:15:36,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 08:15:36,537 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 08:15:36,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-17 08:15:36,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99225611/7b8c2892543b421caea0d7e6739b5014/FLAGbfd8b7129 [2021-11-17 08:15:37,229 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 08:15:37,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-17 08:15:37,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99225611/7b8c2892543b421caea0d7e6739b5014/FLAGbfd8b7129 [2021-11-17 08:15:37,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99225611/7b8c2892543b421caea0d7e6739b5014 [2021-11-17 08:15:37,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 08:15:37,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 08:15:37,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 08:15:37,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 08:15:37,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 08:15:37,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:15:37" (1/1) ... [2021-11-17 08:15:37,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a9866d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:37, skipping insertion in model container [2021-11-17 08:15:37,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:15:37" (1/1) ... [2021-11-17 08:15:37,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 08:15:37,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 08:15:39,878 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2021-11-17 08:15:39,881 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2021-11-17 08:15:39,881 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2021-11-17 08:15:39,882 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2021-11-17 08:15:39,908 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:15:39,952 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 08:15:40,254 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2021-11-17 08:15:40,254 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2021-11-17 08:15:40,255 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2021-11-17 08:15:40,255 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2021-11-17 08:15:40,263 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 08:15:40,427 INFO L208 MainTranslator]: Completed translation [2021-11-17 08:15:40,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40 WrapperNode [2021-11-17 08:15:40,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 08:15:40,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 08:15:40,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 08:15:40,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 08:15:40,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,744 INFO L137 Inliner]: procedures = 447, calls = 4152, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 8847 [2021-11-17 08:15:40,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 08:15:40,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 08:15:40,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 08:15:40,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 08:15:40,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:40,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 08:15:40,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 08:15:40,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 08:15:40,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 08:15:40,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (1/1) ... [2021-11-17 08:15:41,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 08:15:41,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 08:15:41,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 08:15:41,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 08:15:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 08:15:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 08:15:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 08:15:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 08:15:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-17 08:15:41,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-17 08:15:41,127 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-17 08:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-17 08:15:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2021-11-17 08:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2021-11-17 08:15:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 08:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 08:15:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 08:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 08:15:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 08:15:41,128 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 08:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2021-11-17 08:15:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2021-11-17 08:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2021-11-17 08:15:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2021-11-17 08:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-17 08:15:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-17 08:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2021-11-17 08:15:41,129 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2021-11-17 08:15:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 08:15:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 08:15:41,130 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-17 08:15:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-17 08:15:41,130 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-17 08:15:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-17 08:15:41,130 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2021-11-17 08:15:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2021-11-17 08:15:41,130 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 08:15:41,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 08:15:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 08:15:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 08:15:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 08:15:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 08:15:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2021-11-17 08:15:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2021-11-17 08:15:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 08:15:41,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 08:15:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 08:15:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 08:15:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 08:15:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 08:15:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 08:15:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 08:15:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 08:15:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 08:15:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-17 08:15:41,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-17 08:15:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 08:15:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 08:15:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 08:15:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 08:15:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-17 08:15:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-17 08:15:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 08:15:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 08:15:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 08:15:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 08:15:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 08:15:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2021-11-17 08:15:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2021-11-17 08:15:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-17 08:15:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-17 08:15:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 08:15:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 08:15:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 08:15:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 08:15:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 08:15:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 08:15:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 08:15:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2021-11-17 08:15:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2021-11-17 08:15:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-17 08:15:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-17 08:15:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-11-17 08:15:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-11-17 08:15:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 08:15:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 08:15:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-17 08:15:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-17 08:15:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 08:15:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 08:15:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 08:15:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 08:15:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 08:15:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 08:15:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2021-11-17 08:15:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2021-11-17 08:15:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-17 08:15:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-17 08:15:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 08:15:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 08:15:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 08:15:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 08:15:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-17 08:15:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-17 08:15:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 08:15:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 08:15:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 08:15:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 08:15:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2021-11-17 08:15:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2021-11-17 08:15:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-17 08:15:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-17 08:15:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 08:15:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 08:15:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 08:15:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 08:15:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2021-11-17 08:15:41,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2021-11-17 08:15:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 08:15:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 08:15:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2021-11-17 08:15:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2021-11-17 08:15:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 08:15:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 08:15:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 08:15:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-11-17 08:15:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 08:15:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 08:15:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-17 08:15:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-17 08:15:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 08:15:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 08:15:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 08:15:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 08:15:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 08:15:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 08:15:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-17 08:15:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-17 08:15:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:15:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 08:15:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 08:15:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 08:15:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:15:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 08:15:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2021-11-17 08:15:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2021-11-17 08:15:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 08:15:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 08:15:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2021-11-17 08:15:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2021-11-17 08:15:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-17 08:15:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-17 08:15:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 08:15:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-17 08:15:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2021-11-17 08:15:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2021-11-17 08:15:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-17 08:15:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2021-11-17 08:15:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2021-11-17 08:15:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2021-11-17 08:15:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 08:15:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 08:15:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 08:15:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 08:15:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2021-11-17 08:15:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2021-11-17 08:15:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 08:15:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 08:15:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2021-11-17 08:15:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2021-11-17 08:15:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-17 08:15:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-17 08:15:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2021-11-17 08:15:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2021-11-17 08:15:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-17 08:15:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-17 08:15:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2021-11-17 08:15:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2021-11-17 08:15:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2021-11-17 08:15:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2021-11-17 08:15:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-17 08:15:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-17 08:15:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 08:15:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 08:15:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 08:15:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 08:15:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2021-11-17 08:15:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2021-11-17 08:15:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 08:15:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 08:15:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 08:15:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 08:15:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-17 08:15:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-17 08:15:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-11-17 08:15:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-11-17 08:15:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 08:15:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 08:15:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 08:15:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 08:15:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 08:15:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 08:15:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-17 08:15:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-17 08:15:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 08:15:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 08:15:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-17 08:15:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-17 08:15:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 08:15:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2021-11-17 08:15:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2021-11-17 08:15:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2021-11-17 08:15:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2021-11-17 08:15:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 08:15:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:15:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 08:15:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 08:15:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 08:15:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 08:15:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 08:15:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 08:15:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 08:15:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 08:15:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 08:15:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-17 08:15:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-17 08:15:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 08:15:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 08:15:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2021-11-17 08:15:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2021-11-17 08:15:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2021-11-17 08:15:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2021-11-17 08:15:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-17 08:15:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-17 08:15:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 08:15:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 08:15:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2021-11-17 08:15:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2021-11-17 08:15:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 08:15:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 08:15:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 08:15:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 08:15:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 08:15:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 08:15:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 08:15:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 08:15:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2021-11-17 08:15:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2021-11-17 08:15:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 08:15:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2021-11-17 08:15:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2021-11-17 08:15:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-17 08:15:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-17 08:15:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 08:15:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 08:15:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 08:15:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 08:15:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2021-11-17 08:15:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2021-11-17 08:15:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2021-11-17 08:15:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2021-11-17 08:15:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 08:15:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-17 08:15:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2021-11-17 08:15:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2021-11-17 08:15:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 08:15:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 08:15:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2021-11-17 08:15:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2021-11-17 08:15:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2021-11-17 08:15:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2021-11-17 08:15:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 08:15:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 08:15:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-17 08:15:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-17 08:15:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 08:15:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 08:15:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-17 08:15:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-17 08:15:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 08:15:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 08:15:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 08:15:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 08:15:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 08:15:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 08:15:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 08:15:41,881 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 08:15:41,886 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 08:15:42,753 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 08:15:48,376 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 08:15:48,455 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 08:15:48,478 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 08:15:48,478 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 08:15:48,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:15:48 BoogieIcfgContainer [2021-11-17 08:15:48,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 08:15:48,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 08:15:48,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 08:15:48,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 08:15:48,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 08:15:37" (1/3) ... [2021-11-17 08:15:48,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb6acbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:15:48, skipping insertion in model container [2021-11-17 08:15:48,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:15:40" (2/3) ... [2021-11-17 08:15:48,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb6acbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 08:15:48, skipping insertion in model container [2021-11-17 08:15:48,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 08:15:48" (3/3) ... [2021-11-17 08:15:48,487 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2021-11-17 08:15:48,490 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 08:15:48,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-17 08:15:48,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 08:15:48,541 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 08:15:48,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-17 08:15:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 3025 states, 2127 states have (on average 1.3432063939821344) internal successors, (2857), 2197 states have internal predecessors, (2857), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) [2021-11-17 08:15:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 08:15:48,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:15:48,613 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:15:48,613 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:15:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:15:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 986609956, now seen corresponding path program 1 times [2021-11-17 08:15:48,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:15:48,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772215503] [2021-11-17 08:15:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:15:48,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:15:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:15:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:15:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:15:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:15:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:15:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:15:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:15:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:15:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:15:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:15:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:15:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:15:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:15:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:15:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:15:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:15:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:15:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:15:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 08:15:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-17 08:15:49,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:15:49,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772215503] [2021-11-17 08:15:49,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772215503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:15:49,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:15:49,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:15:49,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687092156] [2021-11-17 08:15:49,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:15:49,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:15:49,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:15:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:15:49,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:15:49,588 INFO L87 Difference]: Start difference. First operand has 3025 states, 2127 states have (on average 1.3432063939821344) internal successors, (2857), 2197 states have internal predecessors, (2857), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 08:15:51,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:15:53,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:15:58,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:15:58,765 INFO L93 Difference]: Finished difference Result 8940 states and 13118 transitions. [2021-11-17 08:15:58,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:15:58,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2021-11-17 08:15:58,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:15:58,827 INFO L225 Difference]: With dead ends: 8940 [2021-11-17 08:15:58,829 INFO L226 Difference]: Without dead ends: 5940 [2021-11-17 08:15:58,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:15:58,852 INFO L933 BasicCegarLoop]: 4686 mSDtfsCounter, 4882 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 2036 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5546 SdHoareTripleChecker+Valid, 10215 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-17 08:15:58,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5546 Valid, 10215 Invalid, 4416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 2378 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-11-17 08:15:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2021-11-17 08:15:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5879. [2021-11-17 08:15:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 4151 states have (on average 1.3389544688026982) internal successors, (5558), 4290 states have internal predecessors, (5558), 1455 states have call successors, (1455), 272 states have call predecessors, (1455), 271 states have return successors, (1452), 1422 states have call predecessors, (1452), 1452 states have call successors, (1452) [2021-11-17 08:15:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 8465 transitions. [2021-11-17 08:15:59,162 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 8465 transitions. Word has length 214 [2021-11-17 08:15:59,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:15:59,165 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 8465 transitions. [2021-11-17 08:15:59,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 08:15:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 8465 transitions. [2021-11-17 08:15:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-17 08:15:59,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:15:59,175 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 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] [2021-11-17 08:15:59,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 08:15:59,176 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:15:59,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:15:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 100661317, now seen corresponding path program 1 times [2021-11-17 08:15:59,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:15:59,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68923389] [2021-11-17 08:15:59,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:15:59,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:15:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:15:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:15:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:15:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:15:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:15:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:15:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:15:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:15:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:15:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:15:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:15:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:15:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:15:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:15:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:15:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:15:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:15:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:15:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 08:15:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:15:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:15:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:15:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 08:15:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:15:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2021-11-17 08:15:59,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:15:59,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68923389] [2021-11-17 08:15:59,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68923389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:15:59,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:15:59,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:15:59,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238005805] [2021-11-17 08:15:59,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:15:59,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:15:59,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:15:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:15:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:15:59,645 INFO L87 Difference]: Start difference. First operand 5879 states and 8465 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:16:01,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:03,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:08,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:08,666 INFO L93 Difference]: Finished difference Result 15649 states and 22560 transitions. [2021-11-17 08:16:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 248 [2021-11-17 08:16:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:08,718 INFO L225 Difference]: With dead ends: 15649 [2021-11-17 08:16:08,719 INFO L226 Difference]: Without dead ends: 9809 [2021-11-17 08:16:08,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:08,746 INFO L933 BasicCegarLoop]: 4721 mSDtfsCounter, 4834 mSDsluCounter, 5572 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 2021 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5497 SdHoareTripleChecker+Valid, 10293 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:08,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5497 Valid, 10293 Invalid, 4423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2021 Valid, 2400 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-17 08:16:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2021-11-17 08:16:09,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 9691. [2021-11-17 08:16:09,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9691 states, 6843 states have (on average 1.336402162794096) internal successors, (9145), 7073 states have internal predecessors, (9145), 2371 states have call successors, (2371), 476 states have call predecessors, (2371), 475 states have return successors, (2368), 2314 states have call predecessors, (2368), 2368 states have call successors, (2368) [2021-11-17 08:16:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 13884 transitions. [2021-11-17 08:16:09,151 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 13884 transitions. Word has length 248 [2021-11-17 08:16:09,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:09,152 INFO L470 AbstractCegarLoop]: Abstraction has 9691 states and 13884 transitions. [2021-11-17 08:16:09,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 08:16:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 13884 transitions. [2021-11-17 08:16:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-17 08:16:09,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:09,158 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:16:09,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 08:16:09,158 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:09,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:09,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1503878482, now seen corresponding path program 1 times [2021-11-17 08:16:09,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:09,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956133321] [2021-11-17 08:16:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:09,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 08:16:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 08:16:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:16:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2021-11-17 08:16:09,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:09,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956133321] [2021-11-17 08:16:09,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956133321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:09,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:09,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:16:09,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458214839] [2021-11-17 08:16:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:09,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:16:09,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:16:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:16:09,534 INFO L87 Difference]: Start difference. First operand 9691 states and 13884 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 08:16:11,607 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:13,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:18,409 INFO L93 Difference]: Finished difference Result 26324 states and 37723 transitions. [2021-11-17 08:16:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-11-17 08:16:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:18,495 INFO L225 Difference]: With dead ends: 26324 [2021-11-17 08:16:18,495 INFO L226 Difference]: Without dead ends: 16672 [2021-11-17 08:16:18,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:18,538 INFO L933 BasicCegarLoop]: 5138 mSDtfsCounter, 4702 mSDsluCounter, 5875 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 1954 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 11013 SdHoareTripleChecker+Invalid, 4376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:18,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5350 Valid, 11013 Invalid, 4376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1954 Valid, 2420 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2021-11-17 08:16:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16672 states. [2021-11-17 08:16:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16672 to 16462. [2021-11-17 08:16:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16462 states, 11573 states have (on average 1.3289553270543506) internal successors, (15380), 11968 states have internal predecessors, (15380), 4027 states have call successors, (4027), 861 states have call predecessors, (4027), 860 states have return successors, (4028), 3922 states have call predecessors, (4028), 4024 states have call successors, (4028) [2021-11-17 08:16:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16462 states to 16462 states and 23435 transitions. [2021-11-17 08:16:19,124 INFO L78 Accepts]: Start accepts. Automaton has 16462 states and 23435 transitions. Word has length 239 [2021-11-17 08:16:19,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:19,125 INFO L470 AbstractCegarLoop]: Abstraction has 16462 states and 23435 transitions. [2021-11-17 08:16:19,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 08:16:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 16462 states and 23435 transitions. [2021-11-17 08:16:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-17 08:16:19,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:19,136 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:16:19,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 08:16:19,138 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:19,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:19,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1826034233, now seen corresponding path program 1 times [2021-11-17 08:16:19,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:19,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83807258] [2021-11-17 08:16:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:19,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:16:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:16:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:16:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 08:16:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 08:16:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:16:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 08:16:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2021-11-17 08:16:19,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:19,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83807258] [2021-11-17 08:16:19,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83807258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:19,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:19,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:16:19,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851459251] [2021-11-17 08:16:19,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:19,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:16:19,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:16:19,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:16:19,549 INFO L87 Difference]: Start difference. First operand 16462 states and 23435 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 08:16:21,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:23,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:27,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:27,484 INFO L93 Difference]: Finished difference Result 41924 states and 59912 transitions. [2021-11-17 08:16:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 277 [2021-11-17 08:16:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:27,699 INFO L225 Difference]: With dead ends: 41924 [2021-11-17 08:16:27,700 INFO L226 Difference]: Without dead ends: 27197 [2021-11-17 08:16:27,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:27,760 INFO L933 BasicCegarLoop]: 7955 mSDtfsCounter, 4100 mSDsluCounter, 7460 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 1333 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 15415 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:27,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 15415 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1333 Valid, 2404 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-17 08:16:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27197 states. [2021-11-17 08:16:28,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27197 to 26912. [2021-11-17 08:16:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26912 states, 18933 states have (on average 1.329636085142344) internal successors, (25174), 19584 states have internal predecessors, (25174), 6603 states have call successors, (6603), 1375 states have call predecessors, (6603), 1374 states have return successors, (6604), 6440 states have call predecessors, (6604), 6600 states have call successors, (6604) [2021-11-17 08:16:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26912 states to 26912 states and 38381 transitions. [2021-11-17 08:16:28,773 INFO L78 Accepts]: Start accepts. Automaton has 26912 states and 38381 transitions. Word has length 277 [2021-11-17 08:16:28,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:28,774 INFO L470 AbstractCegarLoop]: Abstraction has 26912 states and 38381 transitions. [2021-11-17 08:16:28,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-17 08:16:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 26912 states and 38381 transitions. [2021-11-17 08:16:28,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-17 08:16:28,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:28,785 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:16:28,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 08:16:28,785 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:28,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1960047739, now seen corresponding path program 1 times [2021-11-17 08:16:28,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:28,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171857962] [2021-11-17 08:16:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:28,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:16:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:16:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:16:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 08:16:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 08:16:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:16:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 08:16:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2021-11-17 08:16:29,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:29,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171857962] [2021-11-17 08:16:29,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171857962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:29,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:29,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:16:29,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087749712] [2021-11-17 08:16:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:29,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:16:29,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:16:29,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:29,391 INFO L87 Difference]: Start difference. First operand 26912 states and 38381 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 08:16:31,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:34,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:34,403 INFO L93 Difference]: Finished difference Result 27195 states and 38986 transitions. [2021-11-17 08:16:34,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:34,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 277 [2021-11-17 08:16:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:34,558 INFO L225 Difference]: With dead ends: 27195 [2021-11-17 08:16:34,558 INFO L226 Difference]: Without dead ends: 27014 [2021-11-17 08:16:34,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:16:34,591 INFO L933 BasicCegarLoop]: 4116 mSDtfsCounter, 4185 mSDsluCounter, 5539 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 1312 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 9655 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:34,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4679 Valid, 9655 Invalid, 2975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 1662 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-17 08:16:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27014 states. [2021-11-17 08:16:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27014 to 26771. [2021-11-17 08:16:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26771 states, 18856 states have (on average 1.3297093763258379) internal successors, (25073), 19493 states have internal predecessors, (25073), 6548 states have call successors, (6548), 1366 states have call predecessors, (6548), 1366 states have return successors, (6548), 6399 states have call predecessors, (6548), 6548 states have call successors, (6548) [2021-11-17 08:16:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26771 states to 26771 states and 38169 transitions. [2021-11-17 08:16:35,426 INFO L78 Accepts]: Start accepts. Automaton has 26771 states and 38169 transitions. Word has length 277 [2021-11-17 08:16:35,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:35,427 INFO L470 AbstractCegarLoop]: Abstraction has 26771 states and 38169 transitions. [2021-11-17 08:16:35,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 08:16:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 26771 states and 38169 transitions. [2021-11-17 08:16:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-17 08:16:35,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:35,456 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 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] [2021-11-17 08:16:35,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 08:16:35,456 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:35,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash -119756379, now seen corresponding path program 1 times [2021-11-17 08:16:35,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:35,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832387934] [2021-11-17 08:16:35,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:35,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:16:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:16:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:16:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:16:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 08:16:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:16:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 08:16:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 08:16:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 08:16:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 08:16:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-11-17 08:16:35,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:35,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832387934] [2021-11-17 08:16:35,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832387934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:35,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:35,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:16:35,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869508124] [2021-11-17 08:16:35,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:35,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:16:35,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:35,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:16:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:16:35,884 INFO L87 Difference]: Start difference. First operand 26771 states and 38169 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:16:37,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:40,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:45,056 INFO L93 Difference]: Finished difference Result 63766 states and 91062 transitions. [2021-11-17 08:16:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:45,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 310 [2021-11-17 08:16:45,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:45,229 INFO L225 Difference]: With dead ends: 63766 [2021-11-17 08:16:45,230 INFO L226 Difference]: Without dead ends: 38730 [2021-11-17 08:16:45,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:45,321 INFO L933 BasicCegarLoop]: 7407 mSDtfsCounter, 3980 mSDsluCounter, 6985 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 1376 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 14392 SdHoareTripleChecker+Invalid, 3793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:45,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4620 Valid, 14392 Invalid, 3793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 2415 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2021-11-17 08:16:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38730 states. [2021-11-17 08:16:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38730 to 38373. [2021-11-17 08:16:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38373 states, 26970 states have (on average 1.3267704857248794) internal successors, (35783), 27887 states have internal predecessors, (35783), 9402 states have call successors, (9402), 2000 states have call predecessors, (9402), 2000 states have return successors, (9402), 9185 states have call predecessors, (9402), 9402 states have call successors, (9402) [2021-11-17 08:16:46,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38373 states to 38373 states and 54587 transitions. [2021-11-17 08:16:46,567 INFO L78 Accepts]: Start accepts. Automaton has 38373 states and 54587 transitions. Word has length 310 [2021-11-17 08:16:46,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:46,568 INFO L470 AbstractCegarLoop]: Abstraction has 38373 states and 54587 transitions. [2021-11-17 08:16:46,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 08:16:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 38373 states and 54587 transitions. [2021-11-17 08:16:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2021-11-17 08:16:46,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:46,601 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:16:46,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 08:16:46,601 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:46,602 INFO L85 PathProgramCache]: Analyzing trace with hash 780484005, now seen corresponding path program 1 times [2021-11-17 08:16:46,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:46,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567953538] [2021-11-17 08:16:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:46,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:16:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:16:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:16:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 08:16:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 08:16:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:16:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 08:16:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 08:16:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 08:16:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:16:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:16:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 08:16:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-11-17 08:16:47,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:47,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567953538] [2021-11-17 08:16:47,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567953538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:47,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:47,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:16:47,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526777083] [2021-11-17 08:16:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:47,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:16:47,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:16:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:16:47,115 INFO L87 Difference]: Start difference. First operand 38373 states and 54587 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:16:49,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:51,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:16:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:16:55,969 INFO L93 Difference]: Finished difference Result 90717 states and 129458 transitions. [2021-11-17 08:16:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:16:55,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 331 [2021-11-17 08:16:55,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:16:56,447 INFO L225 Difference]: With dead ends: 90717 [2021-11-17 08:16:56,447 INFO L226 Difference]: Without dead ends: 51673 [2021-11-17 08:16:56,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:16:56,560 INFO L933 BasicCegarLoop]: 8006 mSDtfsCounter, 4060 mSDsluCounter, 7464 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 1290 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4715 SdHoareTripleChecker+Valid, 15470 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:16:56,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4715 Valid, 15470 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1290 Valid, 2387 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-17 08:16:56,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51673 states. [2021-11-17 08:16:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51673 to 51212. [2021-11-17 08:16:58,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51212 states, 35990 states have (on average 1.3273131425395943) internal successors, (47770), 37223 states have internal predecessors, (47770), 12581 states have call successors, (12581), 2640 states have call predecessors, (12581), 2640 states have return successors, (12581), 12292 states have call predecessors, (12581), 12581 states have call successors, (12581) [2021-11-17 08:16:58,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51212 states to 51212 states and 72932 transitions. [2021-11-17 08:16:58,421 INFO L78 Accepts]: Start accepts. Automaton has 51212 states and 72932 transitions. Word has length 331 [2021-11-17 08:16:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:16:58,424 INFO L470 AbstractCegarLoop]: Abstraction has 51212 states and 72932 transitions. [2021-11-17 08:16:58,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 08:16:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 51212 states and 72932 transitions. [2021-11-17 08:16:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-17 08:16:58,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:16:58,493 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 08:16:58,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 08:16:58,493 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:16:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:16:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash 905777987, now seen corresponding path program 1 times [2021-11-17 08:16:58,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:16:58,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892667155] [2021-11-17 08:16:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:16:58,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:16:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:16:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:16:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:16:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:16:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:16:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:16:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:16:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:16:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:16:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:16:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:16:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:16:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:16:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:16:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:16:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:16:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:16:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:16:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:16:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:16:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:16:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 08:16:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 08:16:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:16:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:16:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 08:16:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 08:16:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 08:16:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 08:16:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 08:16:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:16:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:16:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:16:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 08:16:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:16:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2021-11-17 08:16:59,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:16:59,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892667155] [2021-11-17 08:16:59,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892667155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:16:59,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:16:59,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:16:59,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083349387] [2021-11-17 08:16:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:16:59,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:16:59,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:16:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:16:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:16:59,044 INFO L87 Difference]: Start difference. First operand 51212 states and 72932 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-17 08:17:01,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:03,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:08,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:17:08,111 INFO L93 Difference]: Finished difference Result 116477 states and 166357 transitions. [2021-11-17 08:17:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:17:08,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 355 [2021-11-17 08:17:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:17:08,439 INFO L225 Difference]: With dead ends: 116477 [2021-11-17 08:17:08,439 INFO L226 Difference]: Without dead ends: 64618 [2021-11-17 08:17:08,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:17:08,743 INFO L933 BasicCegarLoop]: 8007 mSDtfsCounter, 4058 mSDsluCounter, 7464 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 1287 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4712 SdHoareTripleChecker+Valid, 15471 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1287 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-17 08:17:08,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4712 Valid, 15471 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1287 Valid, 2379 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-17 08:17:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64618 states. [2021-11-17 08:17:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64618 to 51212. [2021-11-17 08:17:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51212 states, 35990 states have (on average 1.3272853570436232) internal successors, (47769), 37223 states have internal predecessors, (47769), 12581 states have call successors, (12581), 2640 states have call predecessors, (12581), 2640 states have return successors, (12581), 12292 states have call predecessors, (12581), 12581 states have call successors, (12581) [2021-11-17 08:17:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51212 states to 51212 states and 72931 transitions. [2021-11-17 08:17:10,368 INFO L78 Accepts]: Start accepts. Automaton has 51212 states and 72931 transitions. Word has length 355 [2021-11-17 08:17:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:17:10,369 INFO L470 AbstractCegarLoop]: Abstraction has 51212 states and 72931 transitions. [2021-11-17 08:17:10,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-17 08:17:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 51212 states and 72931 transitions. [2021-11-17 08:17:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-17 08:17:10,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:17:10,398 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 08:17:10,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 08:17:10,398 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:17:10,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:17:10,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1744811649, now seen corresponding path program 1 times [2021-11-17 08:17:10,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:17:10,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7999127] [2021-11-17 08:17:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:17:10,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:17:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:17:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:17:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:17:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:17:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:17:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:17:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:17:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:17:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:17:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:17:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:17:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:17:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:17:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:17:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:17:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:17:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:17:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:17:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:17:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:17:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:17:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 08:17:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 08:17:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 08:17:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-11-17 08:17:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 08:17:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-11-17 08:17:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 08:17:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 08:17:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 08:17:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:17:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:17:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 08:17:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1754 trivial. 0 not checked. [2021-11-17 08:17:11,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:17:11,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7999127] [2021-11-17 08:17:11,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7999127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:17:11,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:17:11,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:17:11,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33299612] [2021-11-17 08:17:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:17:11,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:17:11,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:17:11,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:17:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:17:11,040 INFO L87 Difference]: Start difference. First operand 51212 states and 72931 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 08:17:13,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:15,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:17:20,800 INFO L93 Difference]: Finished difference Result 126935 states and 181271 transitions. [2021-11-17 08:17:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:17:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 355 [2021-11-17 08:17:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:17:21,191 INFO L225 Difference]: With dead ends: 126935 [2021-11-17 08:17:21,191 INFO L226 Difference]: Without dead ends: 77458 [2021-11-17 08:17:21,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:17:21,483 INFO L933 BasicCegarLoop]: 7972 mSDtfsCounter, 4025 mSDsluCounter, 7420 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 1296 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4678 SdHoareTripleChecker+Valid, 15392 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1296 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-17 08:17:21,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4678 Valid, 15392 Invalid, 3715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1296 Valid, 2417 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-17 08:17:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77458 states. [2021-11-17 08:17:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77458 to 76757. [2021-11-17 08:17:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76757 states, 53933 states have (on average 1.3268685220551424) internal successors, (71562), 55792 states have internal predecessors, (71562), 18848 states have call successors, (18848), 3975 states have call predecessors, (18848), 3975 states have return successors, (18848), 18410 states have call predecessors, (18848), 18848 states have call successors, (18848) [2021-11-17 08:17:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76757 states to 76757 states and 109258 transitions. [2021-11-17 08:17:24,129 INFO L78 Accepts]: Start accepts. Automaton has 76757 states and 109258 transitions. Word has length 355 [2021-11-17 08:17:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:17:24,130 INFO L470 AbstractCegarLoop]: Abstraction has 76757 states and 109258 transitions. [2021-11-17 08:17:24,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 08:17:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 76757 states and 109258 transitions. [2021-11-17 08:17:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-17 08:17:24,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:17:24,177 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:17:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 08:17:24,178 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:17:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:17:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash 937440442, now seen corresponding path program 1 times [2021-11-17 08:17:24,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:17:24,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400920584] [2021-11-17 08:17:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:17:24,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:17:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:17:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:17:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:17:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:17:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:17:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:17:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:17:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:17:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:17:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:17:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:17:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:17:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:17:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:17:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:17:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:17:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:17:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:17:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:17:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:17:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:17:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:17:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 08:17:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:17:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 08:17:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 08:17:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:17:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:17:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 08:17:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:17:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:17:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 08:17:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 08:17:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 08:17:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 08:17:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 08:17:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1757 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2021-11-17 08:17:24,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:17:24,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400920584] [2021-11-17 08:17:24,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400920584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:17:24,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:17:24,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 08:17:24,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16460874] [2021-11-17 08:17:24,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:17:24,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 08:17:24,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:17:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 08:17:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 08:17:24,796 INFO L87 Difference]: Start difference. First operand 76757 states and 109258 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 08:17:26,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:28,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:17:35,065 INFO L93 Difference]: Finished difference Result 177083 states and 252641 transitions. [2021-11-17 08:17:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:17:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 384 [2021-11-17 08:17:35,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:17:35,624 INFO L225 Difference]: With dead ends: 177083 [2021-11-17 08:17:35,625 INFO L226 Difference]: Without dead ends: 99705 [2021-11-17 08:17:36,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:17:36,009 INFO L933 BasicCegarLoop]: 7886 mSDtfsCounter, 3956 mSDsluCounter, 7359 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 1295 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4597 SdHoareTripleChecker+Valid, 15245 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-17 08:17:36,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4597 Valid, 15245 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1295 Valid, 2413 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-17 08:17:36,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99705 states. [2021-11-17 08:17:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99705 to 98802. [2021-11-17 08:17:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98802 states, 69338 states have (on average 1.3253050275462228) internal successors, (91894), 71738 states have internal predecessors, (91894), 24295 states have call successors, (24295), 5168 states have call predecessors, (24295), 5168 states have return successors, (24295), 23726 states have call predecessors, (24295), 24295 states have call successors, (24295) [2021-11-17 08:17:39,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98802 states to 98802 states and 140484 transitions. [2021-11-17 08:17:39,544 INFO L78 Accepts]: Start accepts. Automaton has 98802 states and 140484 transitions. Word has length 384 [2021-11-17 08:17:39,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:17:39,545 INFO L470 AbstractCegarLoop]: Abstraction has 98802 states and 140484 transitions. [2021-11-17 08:17:39,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 08:17:39,545 INFO L276 IsEmpty]: Start isEmpty. Operand 98802 states and 140484 transitions. [2021-11-17 08:17:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-17 08:17:39,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 08:17:39,604 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 17, 17, 17, 17, 17, 17, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 08:17:39,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 08:17:39,604 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 08:17:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 08:17:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 921921724, now seen corresponding path program 1 times [2021-11-17 08:17:39,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 08:17:39,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001571409] [2021-11-17 08:17:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 08:17:39,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 08:17:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 08:17:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 08:17:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 08:17:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 08:17:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 08:17:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 08:17:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 08:17:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 08:17:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 08:17:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 08:17:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 08:17:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 08:17:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 08:17:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 08:17:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 08:17:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 08:17:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 08:17:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-17 08:17:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 08:17:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 08:17:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 08:17:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 08:17:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 08:17:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 08:17:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 08:17:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 08:17:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:17:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:17:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 08:17:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 08:17:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 08:17:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 08:17:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 08:17:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 08:17:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 08:17:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 08:17:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 08:17:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 08:17:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1757 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2021-11-17 08:17:40,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 08:17:40,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001571409] [2021-11-17 08:17:40,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001571409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 08:17:40,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 08:17:40,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 08:17:40,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670724146] [2021-11-17 08:17:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 08:17:40,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 08:17:40,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 08:17:40,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 08:17:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 08:17:40,380 INFO L87 Difference]: Start difference. First operand 98802 states and 140484 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 08:17:42,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 08:17:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 08:17:46,564 INFO L93 Difference]: Finished difference Result 99736 states and 142480 transitions. [2021-11-17 08:17:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 08:17:46,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 384 [2021-11-17 08:17:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 08:17:46,583 INFO L225 Difference]: With dead ends: 99736 [2021-11-17 08:17:46,583 INFO L226 Difference]: Without dead ends: 0 [2021-11-17 08:17:46,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 08:17:46,788 INFO L933 BasicCegarLoop]: 4066 mSDtfsCounter, 4081 mSDsluCounter, 5477 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 1283 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4564 SdHoareTripleChecker+Valid, 9543 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1283 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-17 08:17:46,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4564 Valid, 9543 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1283 Valid, 1641 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-17 08:17:46,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-17 08:17:46,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-17 08:17:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-17 08:17:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-17 08:17:46,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 384 [2021-11-17 08:17:46,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 08:17:46,800 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-17 08:17:46,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 08:17:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-17 08:17:46,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-17 08:17:46,802 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-17 08:17:46,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-17 08:17:46,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 08:17:46,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.